Table of Contents Chapter 1 EPON System Configuration Chapter 2 OLT Configuration Chapter 3 ONU Configuration

Transcription

1 Table of Contents Table of Contents Chapter 1 EPON System Configuration Introduction to EPON System EPON System Configuration Tasks Configuring the Interval to Sample System Statistics Configuring the Interval to Sample System Statistics System Statistics Sampling Configuration Example Displaying Port Information of the EPON System Displaying Port Information of EPON System Displaying Port Information of EPON System Displaying an EPON System Chapter 2 OLT Configuration Introduction to OLT Device OLT Configuration Tasks Configuring the OLT Attributes Configuring the OLT Attributes Configuring VLANs for an OLT Port Configuring VLANs for an OLT Port OLT Port VLAN Configuration Example Configuring the Maximum ONU RTT Configuring the Maximum ONU RTT Maximum ONU RTT Configuration Example Enabling IGMP Packets to be Passed to CPU Enabling IGMP Packets to be Passed to CPU U Displaying the Registered ONUs Connected to Specific OLT Ports Displaying the Registered ONUs Connected to Specific OLT Ports ONU Information Display Example Displaying OLT Configuration Chapter 3 ONU Configuration Introduction to ONU Configuring an ONU U Binding an ONU Port to an ONU Binding an ONU port to an ONU ONU Ports-to-ONUs Binding Configuration Example Configuring DBA and ONU Uplink Bandwidth Range Prerequisites Configuring DBA and ONU Uplink Bandwidth Range DBA and ONU Uplink Bandwidth Range Configuration Example i

2 Table of Contents 3.5 Configuring Traffic Encryption Prerequisites Configuring Traffic Encryption Traffic Encryption Configuration Example Configuring the VLAN Tag Processing Mode for an ONU Port Prerequisites Configuring VLAN Tag Processing Mode for an ONU Port VLAN Tag Processing Mode Configuration Example (Transparent) VLAN Tag Processing Mode Configuration Example (Untagged) Configuring Multicast Filtering Prerequisites Configuring Multicast Filtering for an Aolynk ET Series Optical Terminal Multicast Filtering Configuration Example (Aolynk ET Series) Deregistering an ONU Prerequisites Deregistering an ONU ONU Deregistration Configuration Example Restarting an ONU Prerequisites Restarting an ONU... U ONU Restart Configuration Example Testing the Link to an ONU Prerequisites Testing the Link Between an ONU and the OLT Link Test Configuration Example Configuring ONU Authentication Forcibly Re-authenticating an ONU ONU Authentication Configuration Example Managing an ONU Remotely Prerequisites Managing an ONU Remotely ONU Remote Management Configuration Example Displaying ONU Registration and Deregistration Records Displaying OAM information About an ONU Displaying OAM Information About an ONU OAM Information Display Configuration Example Displaying an ONU U Multicast VLAN Configuration Example Chapter 4 ONU UNI Configuration UNIs of an ONU Configuring UNIs of an ONU Configuring VLAN Tag Processing Mode and Default VLAN ID for UNIs of the ONU ii

3 Table of Contents Configuring VLAN Tag Processing Mode and Default VLAN ID for UNIs of ONU U Configuration Example Configuring Priority for Packets on UNIs of the ONU Configuring Priority for Packets on UNIs of the ONU Configuration Example Configuring Duplex Mode for UNIs of the ONU Configuring Duplex Mode for the UNIs of the ONU Configuration Example Configuring Flow Control for UNIs of the ONU Configuring Flow Control for UNIs of the ONU Configuration Example Configuring the Line Rate for UNIs of the ONU Configuring the Line Rate for UNIs of the ONU Configuration Example Configuring the Cable Type for UNIs of the ONU Configuring the Cable Type for UNIs of the ONU Configuration Example Configuring the Speed on UNIs of the ONU Configuring the Speed on UNIs of the ONU Configuration Example Enabling/Disabling UNIs of the ONU Displaying the State Information About UNIs of the ONU Displaying the State Information About UNIs of the ONU Configuration Example Clearing the Accounting Information About the UNI of the ONU Clearing the Accounting Information About the Specified UNI of the ONU Configuration Example Displaying the Configuration Information About UNIs of the ONU Displaying the Configuration Information About UNIs of the ONU Configuration Example Chapter 5 Alarm Configuration Introduction to Alarm Alarm Configuration Tasks Configuring Alarms and Alarm Monitor Period Prerequisites Configuring Global Alarms Configuring OLT Alarms Configuring ONU Alarms Configuring the Alarm Monitor Period Alarm and Alarm Monitor Period Configuration Example Displaying the Alarm Configuration iii

4 Table of Contents Chapter 6 Switch Features Supported by EPON Features Supported by EPON Description of configuration precautions iv

5 Chapter 1 EPON System Configuration Chapter 1 EPON System Configuration 1.1 Introduction to EPON System As a kind of passive optical network (PON) technology, the Ethernet PON (EPON) is currently the best scheme among all kinds of fiber to the home (FTTH) solutions and fiber to the building (FTTB) solutions. Besides, the emergence of 10 Gbps Ethernet backbone and metropolitan area ring network will make EPON the best last-mile solution in the coming pure-optical networks. The IEEE 802.3ah standard details the operating model of the EPON, MPCP (multiple point control protocol), and OAM (operation, administration and maintenance) functions. Figure 1-1 illustrates the EPON architecture. POS: Passive optical splitter: Drop: Downlink Feeder: The fiber to which multiple channels are multiplexed Figure 1-1 EPON architecture A typical EPON system consists of the following components: optical line terminal (OLT), optical network unit (ONU), and passive optical splitter (POS), where: OLT provides a platform for multiple services. It also provides core data and video-to-telephone network interfaces for EPON and service providers. Currently, H3C S7500 series Ethernet switches with EPON service cards installed are used as the OLT devices. An OLT device is usually placed in the central office (CO). ONU is usually placed next to the network interface units (NIUs) or integrated with NIUs. Currently, H3C S3100 series Ethernet switches with ONU sub-cards installed or Aolynk ET series optical terminals are used as ONU devices. POS is used to connect OLTs and the ONUs. A POS device contains a trunk port and multiple branch ports and enables multiple ONUs to share a single optical fiber. It can operate in an all-weather environment. In the downlink direction, a POS device distributes the incoming optical signals to the ONUs attached to it through 1-1

6 Chapter 1 EPON System Configuration its branch ports; in the uplink direction, the POS multiplexes optical signals coming from ONUs into one fiber. The data transmission procedure of an EPON system features the following: In the downlink direction, the downlink data (that is, packets sent from OLT to ONUs) is broadcast to every ONU. An ONU receives the packets with matched LLIDs (logical link identifier) or broadcast LLIDs. In the uplink direction, packets sourced from ONUs are time-division multiplexed in the OLT. Each ONU is assigned a time slot and take its turn to send packets in the time slots assigned to it. This avoids conflicts and packet collisions. The POS couples uplink data to an optical fiber and distributes downlink data to each ONU. To avoid data collision and synchronize signals, the distances between an OLT and the ONUs are automatically figured out. In addition, uplink bandwidths are allocated to ONUs according to their SLAs (service level agreement). An EPON system features the following: 1) Point-to-multipoint architecture An OLT port can have up to 32 ONUs connected to it (there will be more in the future); all the ONUs connected to an OLT port share an uplink bandwidth of up to 1 Gbps through time division multiplexing (TDM). 2) Passive fiber optic transmission EPON enables optical signals to be transmitted to end users correctly without the help of any protocols. Data from end users in turn can be transmitted to the core network. 3) Ethernet-based network architecture EPON adopts the IP/Ethernet architecture, which carries out a total of 95% LAN transmission at present. Benefiting from the above-mentioned architecture, EPON becomes one of the most effective communication methods for end users to access networks. 1.2 EPON System Configuration Tasks Note: This manual only covers the configurations that are specific to EPON. For information about H3C S7500 series Ethernet switches and the related configuration, refer to H3C S5600 Series Ethernet Switches Operation Manual. 1-2

7 Chapter 1 EPON System Configuration Table 1-1 EPON system configuration tasks Configuration Description Related section Configure the interval to sample system statistics Display port information of an EPON system Section 1.3 Configuring the Interval to Sample System Statistics Section 1.4 Displaying Port Information of the EPON System 1.3 Configuring the Interval to Sample System Statistics An OLT periodically samples statistics data (including broadcast data packet and unicast data packet, and so on) of all the OLTs and ONUs in system. You can determine whether or not the entire system operates properly by checking the statistics data. This ensures problems to be detected in time and the entire system to operate normally Configuring the Interval to Sample System Statistics Table 1-2 Configure the interval to sample system statistics Enter system view system-view Enter FTTH view ftth Enable system statistics sampling Configure the interval to sample system statistics Verify the configuration sample enable timer sample seconds display current-configuration By default, system statistics sampling is enabled. By default, the sampling interval is 4 seconds. This command can be executed in any view. Caution: The configuration listed in Table 1-2 is recommended to users with administrative rights rather than normal users. 1-3

8 Chapter 1 EPON System Configuration System Statistics Sampling Configuration Example I. Network requirements Enable system statistics sampling. Configure the sampling interval as 500 seconds. II. Configuration procedure # Enter system view. <H3C> system-view # Enter FTTH view. [H3C] ftth # Enable system statistics sampling. [H3C-ftth] sample enable # Configure the sampling interval as 500 seconds. [H3C-ftth] timer sample 500 # Quit FTTH view. [H3C-ftth] quit # Quit system view. [H3C] quit # Display the configuration. <H3C> display current-configuration configuration ftth # ftth timer sample 500 # return 1.4 Displaying Port Information of the EPON System Port information of EPON system includes information about port version, device capability, work mode, and port statistics. 1-4

9 Chapter 1 EPON System Configuration Displaying Port Information of EPON System Table 1-3 Display port information of EPON system Display port version information Display device capability information Display work mode Display port statistics display epon-version interface interface-type interface-number display epon-capability interface interface-type interface-number display epon-workmode interface interface-type interface-number display epon statistics interface interface-type interface-number The interface-type argument represents port type, which can be OLT or ONU. The interface-number argument represents port number. These commands can be executed in any view. Note: As for the interface-number argument, the format of LPU slot number/sub-lpu slot number/olt port number is used for OLT ports; and the format of LPU slot number/sub-lpu slot number/olt port number:onu port number is used for ONU ports. To display the information about an ONU port, make sure the ONU port is bound to an ONU and is in the Up state. Refer to section 3.3 Binding an ONU Port to an ONU for related information. EPON system statistics data include average error rate of data bits and data frames transmitted between an OLT and the ONUs Displaying Port Information of EPON System I. Configuration procedure # Display the version information about Olt2/0/8 port. <H3C> display epon-version interface olt2/0/8 OLT device version information: Firmware major version: 2 Firmware minor version: 9 Hardware major version: 5001 Hardware minor version: 3 Supported LLID number :

10 Chapter 1 EPON System Configuration Note: An LLID uniquely identifies an ONU. It is dynamically assigned by an OLT. Currently, an LLID ranges from 1 to Displaying an EPON System Table 1-4 Display an EPON system Display all configuration Display the configuration of the current view display current-configuration display this This command can be executed in any view. This command display the configuration of the current view. 1-6

11 Chapter 2 OLT Configuration Chapter 2 OLT Configuration 2.1 Introduction to OLT Device OLT device provides a platform for multiple services. It can be connected to devices such as voice gateways and IP routers. An OLT device also provides multiple Gigabit Ethernet interfaces and Layer 2/ Layer 3 switching and routing functions. 2.2 OLT Configuration Tasks Table 2-1 OLT configuration tasks Configuration task Description Related section Configuring the OLT attributes Configuring VLANs for an OLT port Configuring the maximum ONU RTT (round tip time) Enabling IGMP packets to be passed to CPU Displaying the registered ONUs under an OLT port Section 2.3 Configuring the OLT Attributes Section 2.4 Configuring VLANs for an OLT Port Section 2.5 Configuring the Maximum ONU RTT Section 2.6 Enabling IGMP Packets to be Passed to CPU Section 2.7 Displaying the Registered ONUs Connected to Specific OLT Port 2.3 Configuring the OLT Attributes The configuration here is to set the following OLT attributes: The periods in the Discovery phase within which the OLT laser stabilizes or is shut off. Whether or not multi-copy broadcast is enabled. If it is enabled, a packet sent to ONUs by an OLT is only broadcasted in the VLAN it belongs to instead of in all VLANs. Whether or not to discard the packets with their source MAC addresses not contained in the OLT MAC address table. 2-1

12 Chapter 2 OLT Configuration Note: The Discovery phase refers to the phase when an ONU registers with the OLT and is allocated bandwidth. An ONU can only register with the OLT when the OLT laser is On. Currently, multi-copy broadcast is not supported Configuring the OLT Attributes Table 2-2 Configure the OLT attributes Enter system view system-view Enter OLT port view Configure the period within which the OLT laser can stabilize Configure the period within which the OLT laser can be shut off Enable multi-copy broadcast Configure to discard the packets with their source MAC addresses not contained in the OLT MAC address table Display the current configuration interface interface-type interface-number attribute laser-on time attribute laser-off time attribute multiple-copy-broadca st enable attribute discard-packet enable display current-configuration The interface-number argument represents an OLT port number. By default, this period is 96 TQ. (1 TQ is equal to 16 ns). By default, this period is 96 TQ. By default, multi-copy broadcast is disabled. By default, the packets with their source MAC addresses not contained in the OLT MAC address table are forwarded. This command can be executed in any view. 2-2

13 Chapter 2 OLT Configuration Caution: Improper period for an OLT laser to stabilize or to be shut down results in service interruption. So, do not perform this configuration if you are not a user with administrative rights. The above configurations take effect only after you execute the shutdown command and then the undo shutdown command on the OLT. As the attribute discard-packet enable command may affect MAC address learning, execute it with caution. 2.4 Configuring VLANs for an OLT Port The VLAN configuration of an OLT Port is to specify the VLANs whose packets are permitted by the OLT port. A proper VLAN configuration helps to suppress unnecessary VLAN broadcast Configuring VLANs for an OLT Port Table 2-3 Configure VLANs for an OLT port Enter view system system-view Enter OLT port view interface interface-number interface-type The interface-number argument represents an OLT port number. Configure VLANs for the OLT port Display the current configuration port permit vlan vlan-list display current-configuration The vlan-list argument can be a VLAN ID list (which can contain up to ten VLAN IDs) or a VLAN ID range (in the form of vlan-id to vlan-id). By default, only the packets of VLAN 1 are permitted. This command can be executed in any view. 2-3

14 Chapter 2 OLT Configuration Caution: For Aolynk ET series optical terminals, If the VLAN tag processing mode of the ONU port is untagged and the ONU port belongs to a specific VLAN, the OLT port permits the packets of the VLAN. For information about the above-mentioned VLAN tag processing modes, refer to section 3.6 Configuring the VLAN Tag Processing Mode for an ONU Port. Packets on the ONU ports of a H3C S3100 series Ethernet switches with ONU functions are forwarded transparently without being processed OLT Port VLAN Configuration Example I. Network requirements Note: This example takes the Aolynk ET series optical terminals (that is, ET204/ET204-L20 and ET300/ET300-L20) as an example. Normally, it is recommended that an ONU port operate in the transparent VLAN tag processing mode. You can perform VLAN configuration on the four Ethernet ports of an ET204/ET204-L20 (Currently, the configuration is not supported by ET300/ET300-L20). For details, refer to section 4.3 "Configuring VLAN Tag Processing Mode and Default VLAN ID for UNIs of the ONU. This example assumes that the ONU port is bound to an ONU. For information about binding an ONU port to an ONU, refer to section 3.3 Binding an ONU Port to an ONU. Connect the ONU device (ET300) to a trunk port (Ethernet0/1) of a Layer 2 switch used for user access. Configure the VLAN tag processing mode of the ONU as transparent. Connect PC1 to the Ethernet3/0/1 port of the OLT device and add the port to VLAN 3. Connect PC2 to the Ethernet0/2 port of the Layer 2 switch and add the port to VLAN 3. Configure the Olt2/0/8 port to permit the packets of VLAN 3. Configure the Ethernet0/1 port of the Layer 2 switch to permit the packets of VLAN 3. The above configuration enables PC1 and PC2 to communicate with each other. 2-4

15 Chapter 2 OLT Configuration II. Network diagram OLT Ethernet3/0/1 Olt2/0/8 PC1 POS Transparent Ethernet0/1 Trunk Switch Access Ethernet0/2 PC2 Figure 2-1 Network diagram for OLT port VLAN configuration III. Configuration procedure 1) Configure the OLT. # Enter system view. <H3C> system-view # Create VLAN 3. [H3C] vlan 3 # Quit VLAN view. [H3C-vlan3] quit # Enter Ethernet3/0/1 port view. [H3C] interface ethernet3/0/1 # Configure the Ethernet3/0/1 port as an access port, and add the port to VLAN 3. [H3C-Ethernet3/0/1] port link-type access [H3C-Ethernet3/0/1] port access vlan 3 # Quit Ethernet3/0/1 port view. [H3C-Ethernet3/0/1] quit # Enter Onu2/0/8:1 port view. [H3C] interface onu2/0/8:1 # Configure the VLAN tag processing mode of this port as transparent. 2-5

16 Chapter 2 OLT Configuration [H3C-onu2/0/8:1] port handlemode transparent # Bring up ONU2/0/8:1 port. [H3C-onu2/0/8:1] undo shutdown # Quit the Onu2/0/8:1 port view. [H3C-onu2/0/8:1] quit # Enter Olt2/0/8 port view. [H3C] interface olt2/0/8 # Configure to permit packets of VLAN 3. [H3C-Olt2/0/8] port permit vlan 3 # Display the current configuration. [H3C-Olt2/0/8] display current-configuration interface olt2/0/8 # interface Olt2/0/8 port permit vlan 3 # return 2) Configure the Layer 2 switch. # Enter system view. <H3C> system-view # Create VLAN 3. [H3C] vlan 3 # Quit VLAN view. [H3C-vlan3] quit # Enter Ethernet0/2 port view. [H3C] interface ethernet0/2 # Configure the Ethernet0/2 port as an access port and add the port to VLAN 3. [H3C-Ethernet0/2] port link-type access [H3C-Ethernet0/2] port access vlan 3 # Quit Ethernet0/2 port view. [H3C-Ethernet0/2] quit # Enter Ethernet0/1 port view. [H3C] interface ethernet0/1 # Configure the Ethernet0/1 port as a trunk port and configure the port to permit packets of VLAN 3. [H3C-Ethernet0/1] port link-type trunk [H3C-Ethernet0/1] port trunk permit vlan 3 2-6

17 Chapter 2 OLT Configuration 2.5 Configuring the Maximum ONU RTT The configuration here is to set the maximum round tip time (RTT) of the ONUs so that the ONUs can successfully register with the OLT. As the physical distances between ONUs and the OLT are usually different, the RTTs of the ONUs may vary in microseconds. In an EPON with the ONU RTTs being not the same, an insufficient isolation interval may result in signals sent by different ONUs reaching the OLT at the same time, or partly-overlapped at the OLT, which in turn results in conflicts between uplink signals. In addition, RTT can also vary due to changing of the environment temperature and the aging of the optical parts. The accumulation of this variation may also result in uplink conflicts. To avoid the above conflicts, EPON system adopts the time stamping method to measure distance. This method achieves synchronization by using the time stamps in EPON system. In this method, the distance between an OLT and an ONU, from which the RTT of an ONU is derived, is obtained by figuring out the difference between the value of the received time stamp and that of the local timer time stamp. The RTT of an ONU determines the sending delay of the ONUs. Setting ONU sending delays smartly can reduce the interval between ONU sending windows, so as to improve uplink channel efficiency and reduce the overall delay Configuring the Maximum ONU RTT Table 2-4 Configure the maximum ONU RTT Enter view system system-view Enter OLT port view interface interface-number interface-type The interface-number argument represents an OLT port number. Configure maximum RTT the ONU max-rtt value By default, the maximum ONU RTT is 13,524 TQs. Display the current configuration display current-configuration This command can be executed in any view. 2-7

18 Chapter 2 OLT Configuration Note: RTT is figured out as follows. Suppose that an OLT sends a time stamp T0 to an ONU at the time T0. Once the ONU receives the time stamp, it sets its local timer to T0. After waiting for a specific period, the ONU sends a time stamp T1 to OLT at the time T1. The OLT receives this stamp at the time T2. Then, the RTT of the ONU can be obtained by using the following expression: (T2 - T0) - (T1 - T0). Caution: The configuration listed in Table 2-4 is only recommended to users with administrative rights rather than normal users. Improper configuration may result in service interruptions. The max-rtt command is applicable to unregistered ONUs only. Set the maximum RTT with the maximum ONU distance taken into account. If the maximum RTT value set is too small, the ONUs relatively far away from the OLT may fail to register. The RTT value of a registered ONU cannot be zero. You need to lengthen the optical cable by at least 20 meters for registered ONUs with the RTT being zero. For related operation, refer to section 2.7 Displaying the Registered ONUs Connected to Specific OLT Port Maximum ONU RTT Configuration Example I. Network requirements Configure the maximum ONU RTT to 20,000 TQs. II. Configuration procedure # Enter system view. <H3C> system-view Enter Olt2/0/8 port view. [H3C] interface olt2/0/8 # Configure the maximum ONU RTT as 20,000 TQs. [H3C-Olt2/0/8] max-rtt # Display the current configuration. 2-8

19 Chapter 2 OLT Configuration [H3C-Olt2/0/8] display current-configuration interface olt2/0/8 # interface Olt2/0/8 max-rtt # return 2.6 Enabling IGMP Packets to be Passed to CPU An EPON service card can support IGMP (internet group management protocol) and the IGMP Snooping function only after you enable IGMP packets to be passed to CPU for being processed Enabling IGMP Packets to be Passed to CPU Table 2-5 Enable IGMP packets to be passed to CPU Enter view system system-view Enter OLT port view interface interface-number interface-type The interface-number argument represents an OLT port number. Enable IGMP packets to be passed to CPU igmp-to-cpu enable By default, IGMP packets are passed to CPU for being processed. Display the current configuration display current-configuration This command can be executed in any view. Note: The igmp-to-cpu enable command applies to the current OLT if you execute the command in OLT port view. It applies to all the OLTs if you execute it in FTTH view. 2-9

20 Chapter 2 OLT Configuration Caution: If you enable IGMP packets to be passed to CPU, the OLT operates improperly if one of the ONUs forward uplink multicast packets to the OLT. In this case, it is recommended that you disable this function to avoid unexpected results. With this function disabled, the EPON service card does support IGMP and the IGMP Snooping function. 2.7 Displaying the Registered ONUs Connected to Specific OLT Ports Once an ONU is powered on and registers, the OLT can obtain the information about the ONU through automatic detection. You can use the corresponding commands to display the information about specific ONUs, including MAC address, ONU type, RTT value, port name, hardware version, software version, EEPROM version, host type, and ONU state. Currently, you can display the information in the following two ways. Displaying the information about the ONUs connected to an OLT port Displaying the information about the ONUs connected to all the OLT ports of an EPON card seated in a specific slot Displaying the Registered ONUs Connected to Specific OLT Ports Table 2-6 Display the registered ONUs connected to specific OLT ports Display the information about the registered ONUs connected to a specified OLT port Display the information about the registered ONUs connected to all the OLT ports of an EPON card seated in a specified slot display onuinfo interface interface-type interface-number display onuinfo slot slot-id This command can be executed in any view. This command can be executed in any view. 2-10

21 Chapter 2 OLT Configuration ONU Information Display Example I. Network requirements Two ONUs, OUN1 and ONU2, are connected to the Olt2/0/8 port through a POS. Use the display onuinfo interface command to display the information about the two ONUs. II. Network diagram OLT Olt2/0/8 POS Onu2/0/8:1 Onu2/0/8:2 ONU1 (ET204) ONU2 (LS6M1PU1SA) Figure 2-2 Network diagram for ONU information display III. Displaying procedure # Display the information about all the registered ONUs connected to Olt2/0/8 port. <H3C> display onuinfo interface olt 2/0/8 ONU Mac Address RTT(TQ) Port ONU Board/Ver Sft/Eeprom ONU host State 00e0-fc70-2d6d 3122 Onu2/0/8:1 ET204/D 140/102 N/A Up 000f-e203-ff Onu2/0/8:2 LS6M1PU1SA/A 107/100 S3108C Up entries found

22 Chapter 2 OLT Configuration Note: The fields of the output information are described as follows. RTT represents the ONU round tip time. Refer to section 2.5 Configuring the Maximum ONU RTT for details. Port represents the number of the bound ONU port. If the ONU is not bound to an ONU port, N/A is displayed here. ONU Board/Ver indicates the ONU model and PCB version. Sft/Eeprom indicates the ONU software version and EEPROM version. ONU host indicates the host type of an ONU device. If the ONU device is an Aolynk ET series optical terminal, N/A is displayed. If the ONU device is a H3C S3100 series Ethernet switch with ONU functions, the corresponding switch model is displayed. State indicates the state of the ONU. If the ONU is registered, but not bound to an ONU port, N/A is displayed here. Otherwise, Otherwise, Up (which indicates the ONU is started up) or Down (which indicates the ONU is shut down) is displayed. 2.8 Displaying OLT Configuration Table 2-7 Display OLT Configuration Display all the configuration display current-configuration This command can be executed in any view. Display the configuration concerning the current view display this Execute this command in the desired view. 2-12

23 Chapter 3 ONU Configuration 3.1 Introduction to ONU Chapter 3 ONU Configuration ONUs are located on user side. They provide interfaces for users to connect to EPON through Ethernet. ONUs convert optical signals received from OLT to Ethernet frames and forward them to users; at the same time, they convert Ethernet frames received from users to optical signals and forward them to OLT. The following two types of devices can serve as ONU devices: Aolynk ET series optical terminals: ET204, ET300, ET204-L20, or ET300-L20. H3C S3100 series Ethernet switches with ONU functions, where ONU functions are implemented through ONU sub-cards. 3.2 Configuring an ONU Note: The configuration tasks for the two types of ONU devices are somewhat different, as described in the following text. Table 3-1 describes the configuration tasks for an Aolynk ET series optical terminal. Table 3-1 Configure an Aolynk ET series optical terminal Configuration task Description Related section Bind an ONU port to an ONU Configure DBA and ONU uplink bandwidth range Section 3.3 Binding an ONU Port to an ONU Section 3.4 "Configuring DBA and ONU Uplink Bandwidth Range Configure encryption traffic Section 3.5 Configuring Traffic Encryption Configure VLAN tag processing mode for an ONU port Section 3.6 Configuring the VLAN Tag Processing Mode for an ONU Port Configure filtering multicast Section 3.7 Filtering Configuring Multicast Deregister an ONU Section 3.8 Deregistering an ONU Restart an ONU Section 3.9 Restarting an ONU 3-1

24 Chapter 3 ONU Configuration Configuration task Description Related section Test a link Section 3.10 "Testing the Link to an ONU Configure authentication ONU Section 3.11 Configuring ONU Authentication Manage an ONU remotely Section 3.12 Remotely Managing an ONU Display ONU registration and deregistration records Display OAM information about an ONU Section 3.13 Displaying ONU Registration and Deregistration Record Section 3.14 Displaying OAM information About an ONU Table 3-2 describes the configuration tasks for a H3C S3100 series Ethernet switch with ONU functions. Table 3-2 Configure a H3C S3100 series Ethernet switch with ONU functions Configuration task Description Related section Bind an ONU port to an ONU Configure DBA and ONU uplink bandwidth range Section 3.3 Binding an ONU Port to an ONU Section 3.4 Configuring DBA and ONU Uplink Bandwidth Range Configure encryption traffic Section 3.5 Configuring Traffic Encryption Configure filtering multicast Section 3.7 Filtering Configuring Multicast Deregister an ONU Section 3.8 Deregistering an ONU Restart an ONU Section 3.9 Restarting an ONU Test a link Section 3.10 Testing the Link to an ONU Configure authentication ONU Section 3.11 Configuring ONU Authentication Manage an ONU remotely Section 3.12 Remotely Managing an ONU Display ONU registration and deregistration records Display OAM information about an ONU Section 3.13 "Displaying ONU Registration and Deregistration Records Section 3.14 Displaying OAM information About an ONU 3-2

25 Chapter 3 ONU Configuration 3.3 Binding an ONU Port to an ONU To enable the OLT to manage an ONU, you must first bind an ONU port to the ONU by associating the port with the MAC address of the ONU Binding an ONU port to an ONU Table 3-3 Bind an ONU port to an ONU Enter system view system-view Enter ONU port view Bind the ONU port to an ONU interface interface-type interface-number bind onuid onuid [ type { et204 et300 ls6m1pu1s } ] interface-number: an ONU port number. onuid: the MAC address of an ONU. et204, et300, and ls6m1pu1s specify ET204/ET204-L20, ET300/ET300-L20, and ONU sub-card respectively. ls6m1pu1s includes LS6M1PU1SA and LS6M1PU1SB sub-cards. The default type is et204. Verify configuration the display current-configuration You can execute this command in any view. Note: You can use the display onuinfo command to obtain the MAC address and type of an ONU. Refer to section 2.7 "Displaying the Registered ONUs Connected to Specific OLT Ports. For an unregistered ONU, if the specified ONU type does not match the actual ONU type, a warning message will appear after the ONU is powered on and successfully registers with the OLT, indicating that the binding type does not match the actual one. For a registered ONU, if the specified ONU type does not match the actual ONU type, you will be prompted immediately that the binding type does not match the actual one. After you bind an ONU port to an ONU, the ONU is still in the down state. You can use the undo shutdown command to bring up the ONU. 3-3

26 Chapter 3 ONU Configuration Caution: An ONU port can only be bound to one ONU MAC address. Conversely, an ONU MAC address can only be bound to one ONU port ONU Ports-to-ONUs Binding Configuration Example I. Network requirements Bind the Onu2/0/8:1 port to ONU 1 and bind the Onu2/0/8:2 port to ONU 2. II. Network diagram OLT Olt2/0/8 Splitter Onu2/0/8:1 Onu2/0/8:2 ONU 1 (ET204) ONU 2 (LS6M1PU1SA) Figure 3-1 Network diagram for binding ONU ports to ONUs III. Configuration procedure # Display ONU information about the Olt2/0/8 port. <H3C> display onuinfo interface olt 2/0/8 ONU Mac Address RTT(TQ) Port ONU Board/Ver Sft/Eeprom ONU host State 00e0-fc70-2d6d 3122 N/A ET204/D 140/102 N/A N/A 000f-e203-ff N/A LS6M1PU1SA/A 107/100 S3108C N/A entries found --- # Enter system view. <H3C> system-view # Enter Onu2/0/8:1 port view. [H3C] interface onu 2/0/8:1 # Bind the Onu2/0/8:1 port to ONU 1 and bring ONU 1 up. 3-4

27 Chapter 3 ONU Configuration [H3C-Onu2/0/8:1] bind onuid 00e0-fc70-2d6d type et204 [H3C-Onu2/0/8:1] undo shutdown # Return to the system view. [H3C-Onu2/0/8:1] quit # Enter Onu2/0/8:2 port view. [H3C] interface onu 2/0/8:2 # Bind the Onu2/0/8:2 port to ONU 2 and bring ONU 2 up. [H3C-Onu2/0/8:2] bind onuid 000f-e203-ff13 type ls6m1pu1s [H3C-Onu2/0/8:2] undo shutdown # Display the result. [H3C-Onu2/0/8:2] display onuinfo interface olt 2/0/8 ONU Mac Address RTT(TQ) Port ONU Board/Ver Sft/Eeprom ONU host State 00e0-fc70-2d6d 3122 Onu2/0/8:1 ET204/D 134/102 N/A Up 000f-e203-ff Onu2/0/8:2 LS6M1PU1SA/A 101/100 S3108C Up entries found Configuring DBA and ONU Uplink Bandwidth Range Dynamic bandwidth allocation (DBA) is used to adjust the uplink bandwidth of individual ONUs in real time according to the traffic status of ONUs. DBA is implemented through the request-response mechanism: DBA collects traffic information about ONUs from the bandwidth requests received from ONUs, invokes a specific bandwidth allocation algorithm to figure out the bandwidth to be allocated to each ONU and notifies the results to ONUs through bandwidth authorization messages. This ensures that ONUs will not conflict with each other when they send frames upstream. Comparing with fixed bandwidth allocation, DBA is more suitable for high-bursty IP/Ethernet service. DBA reduces wasted bandwidth and make upstream bandwidth being used more efficiently. With DBA, the ONUs take turns to send uplink frames, and the transmitting order and time of ONUs are controlled by OLT. ONU uplink bandwidth range configuration includes ONU uplink maximum and minimum bandwidth configurations Prerequisites Bind ONU ports to corresponding ONUs. Refer to section 3.3 Binding an ONU Port to an ONU for details. Make sure the ONUs are up. You can check the status of an ONU by executing the display onuinfo command in any view. 3-5

28 Chapter 3 ONU Configuration Configuring DBA and ONU Uplink Bandwidth Range Table 3-4 Configure DBA and ONU uplink bandwidth range Enter view system system-view Enter OLT port view interface interface-type interface-number interface-number: an OLT port number Upgrade external algorithm the DBA dba-algorithm update filename filename: Device name + DBA algorithm file name, a string of up to 64 characters. It cannot be the name of a DBA algorithm file on backup SRPU. Enable an DBA algorithm Configure DBA parameters dba-algorithm enable { extdba intdba } dba-parameters { discovery-frequency value discovery-length value cycle-length value } * The extdba keyword specifies to enable the external DBA algorithm. The intdba keyword specifies to enable the internal DBA algorithm. The internal DBA algorithm is enabled by default. By default, an OLT port broadcasts discovery frames to its ONUs once in every period of 50 x cycle-length; the period for an OLT port to discover ONUs (discovery-length) is 41,500 TQ; the value of cycle-length is 65,535 TQ. Return system view to quit Enter ONU port view Configure ONU uplink bandwidth range Verify the configuration interface interface-type interface-number upstream-sla minimum-bandwidth value1 maximum-bandwidth value2 display current-configuration interface-number: an ONU port number. By default, value1 is 32 and value2 is 368, and The actual minimum or maximum bandwidth = value1 or value2 x 64. You can execute this command in any view. 3-6

29 Chapter 3 ONU Configuration Caution: You can manually load an external DBA algorithm by using the dba-algorithm update command as needed. When you use the dba-algorithm update command to upgrade the external DBA algorithm, the new upgrade file is synchronously loaded onto the backup SRPU (switching and routing process unit), and overwrites the old one (if any) in the backup SRPU. If the synchronous upgrading operation fails (this may occur when there is not enough free space on the FLASH of the backup SRPU), DBA algorithms on the primary and backup SRPUs will be different, thus resulting in configuration errors. The sum of the minimum bandwidths configured for all the ONUs under an OLT port cannot exceed 921,600 Kbps, otherwise your configuration will not be performed. For example, there are three ONUs under an OLT port: ONU1, ONU2, and ONU3. The minimum bandwidth you configured for ONU1 and ONU2 are 3,072 Kbps. Then, if you configure the minimum bandwidth for ONU3 to be greater than 915,456 Kbps, your configuration will fail, and the following prompt appears: Error: The total value of minimum bandwidth on an OLT cannot exceed 900(Mbps)!. Improperly configuring DBA parameters may terminate the entire service. So you are not recommended to configure them unless you are an administrator DBA and ONU Uplink Bandwidth Range Configuration Example I. Network requirements Set the minimum uplink bandwidth to 64,000 Kbps and the maximum uplink bandwidth to 320,000 Kbps for ONU2. Manually load and enable an external DBA algorithm. II. Network diagram Refer to Figure 3-1. III. Configuration procedure 1) Configure ONU uplink bandwidth range. # Enter system view. <H3C> system-view # Enter Onu2/0/8:2 port view. [H3C] interface onu2/0/8:2 # Set the minimum bandwidth to 64,000 Kbps and the maximum bandwidth to 320,000 Kbps for ONU2. 3-7

30 Chapter 3 ONU Configuration [H3C-Onu2/0/8:2] upstream-sla minimum-bandwidth 1000 maximum-bandwidth 5000 Info: The minimum-bandwidth of upstream is Kbit/s Info: The maximum-bandwidth of upstream is Kbit/s # Bring up ONU 2. [H3C-Onu2/0/8:2] undo shutdown # Verify the above configuration. [H3C-Onu2/0/8:2] display current-configuration interface onu 2/0/8:2 # interface Onu2/0/8:2 bind onuid 000f-e203-ff13 type ls6m1pu1s undo shutdown upstream-sla minimum-bandwidth 1000 maximum-bandwidth 5000 # return 2) Load and enable an external DBA algorithm. # Enter system view. <H3C> system-view # Enter Olt2/0/8 port view. [H3C] interface olt 2/0/8 # Load an external DBA algorithm. [H3C-Olt2/0/8] dba-algorithm update plato2.app Updating external DBA-algorithm... # Enable the external DBA algorithm. [H3C-Olt2/0/8] dba-algorithm enable extdba # Verify the above configuration. [H3C-Olt2/0/8] display current-configuration interface olt 2/0/8 # interface Olt2/0/8 dba-algorithm update plato2.app dba-algorithm enable extdba # return # Check the operation information. [H3C-Olt2/0/8] display epon-workmode interface olt 2/0/8 OLT work mode: Status : open MAC ADDR: 000c-d DBA mode: external 3-8

31 Chapter 3 ONU Configuration 3.5 Configuring Traffic Encryption This section describes the configuration concerning data encryption. To prevent user data from being listened by illegal users, you can adopt encryption algorithms to encrypt user data. To ensure the security of data transmission, it is strongly recommended that downstream data, which is sent from OLT to ONU, be encrypted Prerequisites Bind ONU ports to corresponding ONUs. Refer to section 3.3 Binding an ONU Port to an ONU for details. Make sure the ONUs are up. You can check the status of an ONU by executing the display onuinfo command in any view Configuring Traffic Encryption Table 3-5 Configure traffic encryption Enter system view system-view Enter ONU port view Configure to encrypt downstream data from the OLT to the ONU Configure to encrypt both upstream and downstream data between the OLT and the ONU Verify the configuration interface interface-type interface-number encrypt downlink encrypt up-down-link display current-configuration interface-number: an ONU port number. By default, no encryption is performed. By default, no encryption is performed. You can execute this command in any view. You can use the encrypt off command to disable traffic encryption Traffic Encryption Configuration Example I. Network requirements Encrypt the upstream and downstream data between the OLT and ONU 2 to ensure the security of data transmission. Here an ONU sub-card is taken as an example. The configuration procedure for an Aolynk ET series optical terminal is similar to that of an ONU sub-card and is thus omitted. 3-9

32 Chapter 3 ONU Configuration II. Network diagram Refer to Figure 3-1. III. Configuration procedure # Enter system view. <H3C> system-view # Enter Onu2/0/8:2 port view. [H3C] interface onu 2/0/8:2 # Configure to encrypt both upstream and downstream data. [H3C-Onu2/0/8:2] encrypt up-down-link # Bring up ONU 2. [H3C-Onu2/0/8:2] undo shutdown # Verify the above configuration. [H3C-Onu2/0/8:2] display current-configuration interface onu 2/0/8:2 # interface Onu2/0/8:2 # bind onuid 000f-e203-ff13 type ls6m1pu1s undo shutdown encrypt up-down-link return 3.6 Configuring the VLAN Tag Processing Mode for an ONU Port An ONU port can use one of the two modes to process VLAN tags: transparent and untagged: Transparent mode: In this mode, for an upstream frame, if the fame does not carry a VLAN tag, the ONU port inserts the tag of VLAN 1 into the frame before forwarding it to the OLT; if the frame carries a VLAN tag, the ONU port forwards the frame directly. For downstream frames, the ONU port remains them unchanged and forwards them directly. Untagged mode: In this mode, you can configure a VLAN for the port so that the port belongs to the VLAN. After that, for a downstream frame from the OLT to the ONU, if the frame belongs to the same VLAN as that configured on the ONU port, the ONU port removes the VLAN tag from the frame and continues to forward the frame, otherwise it discards the frame. For an upstream frame, if the frame does not contain a VLAN tag, the ONU port inserts the VLAN tag configured on it before forwarding the frame (for example, if the ONU port belongs to VLAN 2, the ONU 3-10

33 Chapter 3 ONU Configuration port inserts the tag of VLAN 2 into the frame). Otherwise, the frame is sent to the OLT without being modified. Note: It is recommended to set an ONU port to the transparent mode. You can perform VLAN configuration for the four Ethernet ports of an ET204 or an ET204-L20. Currently, VLAN configuration is not supported on the Ethernet ports of ET300/ET300-L20. For details on VLAN configuration, refer to section 4.3 "Configuring VLAN Tag Processing Mode and Default VLAN ID for UNIs of the ONU Prerequisites Bind ONU ports to corresponding ONUs. Refer to section 3.3 Binding an ONU Port to an ONU for details. Make sure the ONUs are up. You can check the status of an ONU by executing the display onuinfo command in any view Configuring VLAN Tag Processing Mode for an ONU Port Table 3-6 lists the operations to configure an ONU port to operate in the untagged mode. Table 3-6 Configure the ONU port to operate in the untagged mode Enter system view system-view Enter ONU port view interface interface-type interface-number interface-number: ONU port number. an Set the VLAN tag processing mode on the ONU port to untagged Add the ONU port to a specified VLAN. port handlemode untagged untagged vlan vlan-id An ONU port operates in the untagged mode by default. An ONU port belongs to VLAN 1 by default. Verify configuration the display current-configuration You can execute this command in any view. 3-11

34 Chapter 3 ONU Configuration Caution: Before configuring a VLAN for an ONU port in untagged mode, make sure the VLAN already exists. Table 3-7 lists the operations to configure an ONU port to operate in the transparent mode. Table 3-7 Configure an ONU port to operate in the transparent mode Enter view system system-view Enter ONU port view interface interface-number interface-type interface-number: ONU port number. an Configure the VLAN tag processing mode on the ONU port to transparent Verify the configuration port handlemode transparent display current-configuration An ONU port operates in the untagged mode by default. You can execute this command in any view VLAN Tag Processing Mode Configuration Example (Transparent) I. Network requirements Configure the Onu2/0/8:1 port of ONU 1 (ET300) to operate in the transparent mode. 3-12

35 Chapter 3 ONU Configuration II. Network diagram OLT Olt2/0/8 Splitter Onu2/0/8:1 Transparent ONU (ET300) Figure 3-2 Network diagram for configuring VLAN tag processing mode (A) III. Configuration procedure # Enter system view. <H3C> system-view # Enter Onu2/0/8:1 port view. [H3C] interface onu 2/0/8:1 # Set the VLAN tag processing mode on the port to transparent. [H3C-Onu2/0/8:1] port handlemode transparent # Bring up ONU 1. [H3C-Onu2/0/8:1] undo shutdown # Verify the above configuration. [H3C-Onu2/0/8:1] display current-configuration interface onu 2/0/8:1 # interface Onu2/0/8:1 bind onuid 000f-e203-fdbc type et300 undo shutdown port handlemode transparent # return VLAN Tag Processing Mode Configuration Example (Untagged) I. Network requirements Create VLAN 2 and VLAN

36 Chapter 3 ONU Configuration Add the Onu2/0/8:1 port of ONU 1 (ET300) to VLAN 2. Add the Onu2/0/8:2 port of ONU 2 (ET300) to VLAN 3. II. Network diagram OLT Olt2/0/8 Splitter Onu2/0/8:1 Untagged VLAN 2 Onu2/0/8:2 Untagged VLAN 3 ONU1 (ET300) ONU2 (ET300) Figure 3-3 Network diagram for configuring VLAN tag processing mode (B) III. Configuration procedure # Enter system view. <H3C> system-view # Create VLAN 2. [H3C] vlan 2 # Create VLAN 3. [H3C-vlan2] vlan 3 # Quit the VLAN view. [H3C-vlan3] quit # Enter Onu2/0/8:1 port view. [H3C] interface onu 2/0/8:1 # Add Onu2/0/8:1 to VLAN 2 in the untagged mode. [H3C-Onu2/0/8:1] port handlemode untagged [H3C-Onu2/0/8:1] untagged vlan 2 # Bring up ONU 1. [H3C-Onu2/0/8:1] undo shutdown # Verify the above configuration. [H3C-Onu2/0/8:1] display current-configuration interface onu 2/0/8:1 # interface Onu2/0/8:1 bind onuid 000f-e203-fdbc type et

37 Chapter 3 ONU Configuration undo shutdown untagged vlan 2 # return # Quit Onu2/0/8:1 view. [H3C-Onu2/0/8:1] quit # Enter Onu2/0/8:2 port view. [H3C] interface onu 2/0/8:2 # Add Onu2/0/8:2 to VLAN 3 in the untagged mode. [H3C-Onu2/0/8:2] port handlemode untagged [H3C-Onu2/0/8:2] untagged vlan 3 # Bring up ONU 2. [H3C-Onu2/0/8:2] undo shutdown # Verify the above configuration. [H3C-Onu2/0/8:2] display current-configuration interface onu 2/0/8:2 # interface Onu2/0/8:2 bind onuid 000f-e203-fdba type et300 undo shutdown untagged vlan 3 # return 3.7 Configuring Multicast Filtering An ONU can automatically learn multicast MAC addresses. Multicast filtering enables an ONU to filter out multicast frames whose multicast MAC addresses are not contained in the multicast MAC address table of the ONU. With multicast filtering enabled on an ONU port, downstream multicast frames from the OLT to the ONU will be discarded if their multicast MAC addresses are not contained in the multicast MAC address table of the ONU. With multicast filtering disabled on an ONU port, all downstream multicast frames will be transparently transmitted. 3-15

38 Chapter 3 ONU Configuration Note: For H3C S3100 series Ethernet switches with ONU functions, You can implement multicast filtering by enabling IGMP Snooping or manually configure multicast MAC addresses on S3100 series Ethernet switches. For details, see the IGMP Snooping part in H3C S3100 Series Ethernet Switches Operation Manual. For ET204/ET204-L20 and ET300/ET300-L20, multicast filtering can be achieved through enabling ONU multicast-filter ( the ONUs support up to eight learned or manually configured multicast MAC addresses and the manually configured multicast MAC addresses are in the range of e to e-7f-ff-ff). A downstream frame with the first 16 bits in the least significant 24 bits of its multicast MAC address being zero (such as E XX) will be transparently transmitted Prerequisites Bind ONU ports to corresponding ONUs. Refer to section 3.3 Binding an ONU Port to an ONU for details. Make sure the ONUs a re up. You can check the status of an ONU by executing the display onuinfo command in any view Configuring Multicast Filtering for an Aolynk ET Series Optical Terminal Note: To perform this configuration, you need to enable IGMP Snooping on the OLT device. I. ET204/ET204-L20 Table 3-8 Configure multicast filtering for an ET204/ET204-L20 Enter system view system-view 3-16

39 Chapter 3 ONU Configuration Enable IGMP Snooping globally Enter specified VLAN view Enable IGMP Snooping igmp-snooping enable vlan vlan-id igmp-snooping enable IGMP Snooping is disabled by default. You can check whether or not IGMP Snooping is enabled by using the display igmp-snooping configuration command. IGMP Snooping is disabled by default. You can check whether or not IGMP Snooping is enabled by using the display igmp-snooping configuration command. Return to system view quit Enter ONU port view interface interface-type interface-number interface-number: ONU port number. an Set the VLAN tag processing mode of the ONU port to transparent Enable multicast filtering Set the UNI VLAN tag processing mode of the ONU to untagged Add an ONU UNI to the corresponding VLAN Display the multicast filtering status of the ONU port handlemode transparent multicast-filter enable uni link-type untagged uni uni-number pvid pvid-value display multicast-filter interface interface-type interface-number The VLAN tag processing mode of the ONU port is untagged by default. This function is disabled by default. By default, the UNI VLAN tag processing mode of the ONU is transparent. UNI: user network interface The default VLAN ID for the ONU UNI is 1. You can execute this command in any view. 3-17

40 Chapter 3 ONU Configuration Note: If you specify an OLT port when executing the display multicast-filter interface command, the command displays the multicast filtering status of all ONUs under the OLT port that are in up state. If you specify an ONU port, the command displays the multicast filtering status of the ONU being in up state under the ONU port. For operations related with ONU UNI, refer to section 4.3 "Configuring VLAN Tag Processing Mode and Default VLAN ID for UNIs of the ONU". II. ET300/ET300-L20 Table 3-9 Configure multicast filtering for an ET300/ET300-L20 Enter system view system-view Enable IGMP Snooping globally Enter specified VLAN view Enable IGMP Snooping igmp-snooping enable vlan vlan-id igmp-snooping enable IGMP Snooping is disabled by default. You can check whether or not IGMP Snooping is enabled by using the display igmp-snooping configuration command. IGMP Snooping is disabled by default. You can check whether or not IGMP Snooping is enabled by using the display igmp-snooping configuration command. Return to system view quit Enter ONU port view interface interface-type interface-number interface-number: ONU port number. an Set the VLAN tag processing mode of the ONU port to transparent port handlemode transparent The VLAN tag processing mode of the ONU port is untagged by default. 3-18

41 Chapter 3 ONU Configuration Enable multicast filtering Display the multicast filtering status of the ONU multicast-filter enable display multicast-filter interface interface-type interface-number This function is disabled by default. You can execute this command in any view Multicast Filtering Configuration Example (Aolynk ET Series) I. Network requirements Connect the first UNI of the ONU (ET204) to a user PC. Enable IGMP Snooping globally. Enable IGMP Snooping in VLAN 10 view. Set the VLAN tag processing mode of the ONU port to transparent. Enable multicast filtering for the ONU. Add the first UNI of the ONU to VLAN 10. Suppose there are two multicast flows to the ONU: multicast flow 1 and multicast flow 2, and the user PC only joins multicast group 2 by sending Report messages or is manually added to multicast group 2. Then, the destination MAC address of multicast flow 2 will appear in the multicast MAC address table of the ONU, while that of multicast flow 1 will not. As a result, the ONU will receive and forward multicast flow 2 and discard multicast flow 1. II. Network diagram OLT IGMP Snooping Olt2/0/8 Multicast flow 1 Multicast flow 2 Splitter Onu2/0/8:1 Multicast filtering enabled Transparent Aolynk ET series ONU (ET204) Multicast flow 2 User PC Figure 3-4 Network diagram for configuring multicast filtering 3-19

42 Chapter 3 ONU Configuration III. Configuration procedure # Enter system view. <H3C> system-view # Enable IGMP Snooping globally. [H3C] igmp-snooping enable # Enter VLAN 10 view and enable IGMP Snooping. [H3C] vlan 10 [H3C-vlan10] igmp-snooping enable # Return to system view. [H3C-vlan10] quit # Enter Olt2/0/8 port view. [H3C] interface olt2/0/8 # Configure the Olt2/0/8 port to permit the packets of VLAN 10. [H3C-Olt2/0/8] port permit vlan 10 # Return to system view. [H3C-Olt2/0/8] quit # Enter Onu2/0/8:1 port view. [H3C] interface onu2/0/8:1 # Configure the VLAN tag processing mode of the port to transparent. [H3C-Onu2/0/8:1] port handlemode transparent # Bring up the ONU. [H3C-Onu2/0/8:1] undo shutdown # Enable multicast filtering for the ONU. [H3C-Onu2/0/8:1] multicast-filter enable # Check the multicast filtering status of the ONU. [H3C-Onu2/0/8:1] display multicast-filter interface onu2/0/8:1 Multicast filter status: enable # Set the UNI VLAN tag processing mode of the ONU to untagged. [H3C-Onu2/0/8:1] uni link-type untagged # Add UNI 1 of the ONU to VLAN 10. [H3C-Onu2/0/8:1] uni 1 pvid 10 # Verify the above configuration. [H3C-Onu2/0/8:1] display current-configuration interface onu 2/0/8:1 # interface Onu2/0/8:1 3-20

43 Chapter 3 ONU Configuration bind onuid 00e0-fc70-2d6d type et204 undo shutdown port handlemode transparent multicast-filter enable uni link-type untagged uni 1 pvid 10 # return 3.8 Deregistering an ONU After being deregistered, an ONU registers again automatically Prerequisites Bind ONU ports to corresponding ONUs. Refer to section 3.3 Binding an ONU Port to an ONU for details Deregistering an ONU Table 3-10 Deregister an ONU Enter system view system-view Enter ONU port view interface interface-type interface-number interface-number: an ONU port number. Deregister the ONU deregister onu ONU Deregistration Configuration Example I. Network requirements Deregister an ONU in an EPON system. 3-21

44 Chapter 3 ONU Configuration II. Network diagram Figure 3-5 Network diagram for deregistering an ONU III. Configuration procedure # Enter system view. <H3C> system-view # Enter Onu2/0/8:1 port view. [H3C] interface onu 2/0/8:1 # Deregister the ONU. [H3C-Onu2/0/8:1] deregister onu 3.9 Restarting an ONU When an ONU is bound to an ONU port and is up, you can restart the ONU Prerequisites Before performing the configuration here, make sure the ONU has an ONU port bound to it. See section 3.3 Binding an ONU Port to an ONU for details. Make sure the ONU is up. You can check the status of an ONU by executing the display onuinfo command in any view. 3-22