Ethernet interface configuration commands

Transcription

1 Contents Ethernet interface configuration commands 1 General Ethernet interface/subinterface configuration commands 1 combo enable 1 default 1 description 2 display counters 3 display counters rate 4 display interface 6 duplex 17 flag sdh 18 flow-control 18 flow-interval 19 interface 20 link-delay 20 loopback 21 port link-mode 22 port link-mode interface-list 23 port-mode 23 reset counters interface 24 shutdown 25 speed 25 Layer 2 Ethernet interface configuration commands 26 broadcast-suppression 26 display port-group manual 27 group-member 28 jumboframe enable 29 mdi 29 multicast-suppression 30 port-group manual 31 speed auto 32 unicast-suppression 32 Layer 3 Ethernet interface/subinterface configuration commands 34 mtu 34 traffic-statistic enable 34 VE interface configuration commands 35 display interface ve-bridge 35 display interface virtual-ethernet 38 interface ve-bridge 40 interface virtual-ethernet 41 mac-address 41 reset counters interface ve-bridge 42 reset counters interface virtual-ethernet 43 i

2 Ethernet interface configuration commands NOTE: In this documentation, SPC cards refer to the interface cards prefixed with SPC, for example, SPC-GT48L. SPE cards refer to the cards prefixed with SPE, for example, SPE-1020-E. General Ethernet interface/subinterface configuration commands combo enable combo enable { copper fiber } Ethernet interface view (Combo interface) copper: Activates the electrical port of the Combo interface. fiber: Activates the optical port of the Combo interface. Use the combo enable command to activate the electrical or optical port of a Combo interface. By default, the electrical port of a Combo interface is activated. Combo interfaces are logical interfaces. A Combo interface comprises one optical (fiber) port and one electrical (copper) port. The two ports cannot work simultaneously because they share the same forwarding interface. If one port is enabled, the other port is automatically disabled. default # Activate the electrical port of Combo interface GigabitEthernet 3/1/3. [Sysname] interface gigabitethernet 3/1/3 [Sysname-GigabitEthernet3/1/3] combo enable fiber default 1

3 Ethernet interface view, Ethernet subinterface view None Use the default command to restore the default settings for an Ethernet interface or subinterface. This command might fail to restore the default settings for some commands for reasons such as command dependencies and system restrictions. You can use the display this command in interface view to check for these commands, and perform their undo forms or follow the command reference to individually restore their default settings. If your restoration attempt still fails, follow the error message to resolve the problem. CAUTION: The default command might interrupt ongoing network services. Make sure you are fully aware of the impacts of this command when you perform it on a live network. # Restore the default settings for interface GigabitEthernet 2/1/1. [Sysname] interface gigabitethernet 2/1/1 [Sysname-GigabitEthernet2/1/1] default This command will restore the default settings. Continue? [Y/N]:y # Restore the default settings for subinterface GigabitEthernet 2/1/1.1. [Sysname] interface gigabitethernet 2/1/1.1 [Sysname-GigabitEthernet2/1/1.1] default This command will restore the default settings. Continue? [Y/N]:y description description text undo description Ethernet interface view, Ethernet subinterface view text: Specifies the interface description, a string of 1 to 80 characters. The string can include case-sensitive letters, digits, special characters such as tilde (~), exclamation mark(!), at sign (@), number sign (#), dollar sign ($), percent (%), caret (^), ampersand (&), asterisk(*), brackets({ }, ( ),[ ], < >), 2

4 hyphen (-), underscore(_), plus (+), equal sign (=), vertical bar ( ), backslash (\), colon (:), semicolon (;) prime ("), apostrophe('),comma (,), period (.), slash (/), spaces, and other Unicode characters and symbols. NOTE: Each Unicode character takes the space of two regular characters. To use Unicode characters or symbols in an interface description, install the specific input method editor and log in to the router through remote login software that supports the character type. When the length of a description string reaches or exceeds the maximum line width on the terminal software, the software starts a new line, possibly breaking a Unicode character into two. As a result, garbled characters may be displayed at the end of a line. Use the description command to change the description of the interface. Use the undo description command to restore the default. The default description of an Ethernet interface is the interface name plus Interface. Related commands: display interface. # Change the description of interface GigabitEthernet 2/1/1 to aaa. [Sysname] interface GigabitEthernet 2/1/1 [Sysname-GigabitEthernet2/1/1] description aaa display counters Any view display counters { inbound outbound } interface [ interface-type ] [ { begin exclude include } regular-expression ] 1: Monitor level inbound: Displays inbound traffic statistics. outbound: Displays outbound traffic statistics. interface-type: Specifies an interface type. If the RPR interface type is specified, broadcast and multicast packets are regarded as multicast packets. : Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide. begin: Displays the first line that matches the specified regular expression and all lines that follow. exclude: Displays all lines that do not match the specified regular expression. include: Displays all lines that match the specified regular expression. 3

5 regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters. Use the display counters command to display traffic statistics for interfaces. If an interface type is specified, this command displays traffic statistics for all interfaces of that type. If no interface type is specified, this command displays traffic statistics for all interfaces that have traffic counters. # Display inbound traffic statistics for all GigabitEthernet interfaces. <Sysname> display counters inbound interface gigabitethernet Interface Total(pkts) Broadcast(pkts) Multicast(pkts) Err(pkts) GE2/1/ GE2/1/ GE2/1/3 Overflow Overflow Overflow Overflow GE2/1/ Overflow: more than 14 decimal digits(7 digits for column "Err"). --: not supported. Table 1 Output description Field Interface Total (pkts) Broadcast (pkts) Multicast (pkts) Err (pkts) Overflow: more than 14 decimal digits(7 digits for column "Err"). Abbreviated interface name. Total number of packets received or sent through the interface. You can specify a traffic direction by using the inbound or outbound keyword. Total number of broadcast packets received/sent through the interface. You can specify a traffic direction by using the inbound or outbound keyword. Total number of multicast packets received/sent through the interface. You can specify a traffic direction by using the inbound or outbound keyword. Total number of error packets received/sent through the interface. You can specify a traffic direction by using the inbound or outbound keyword. The command displays Overflow in any of the following cases: The data length of an error statistic is greater than 7 decimal digits. The data length of a non-error statistic is greater than 14 decimal digits. --: not supported. The statistical item is not supported. display counters rate Any view display counters rate { inbound outbound } interface [ interface-type ] [ { begin exclude include } regular-expression ] 1: Monitor level 4

6 inbound: Displays inbound traffic rate statistics. outbound: Displays outbound traffic rate statistics. interface-type: Specifies an interface type. If the RPR interface type is specified, broadcast and multicast packets are regarded as multicast packets. : Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide. begin: Displays the first line that matches the specified regular expression and all lines that follow. exclude: Displays all lines that do not match the specified regular expression. include: Displays all lines that match the specified regular expression. regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters. Use the display counters rate command to display traffic rate statistics over the last sampling interval. If you provide the interface-type argument, this command displays the traffic rate statistics of all the interfaces of that type in the up state. If you do not provide the argument, this command displays the traffic rate statistics of all the interfaces that support this command. To set the sampling interval, use the flow-interval command. # Display inbound traffic rate statistics for all GigabitEthernet interfaces. <Sysname> display counters rate inbound interface gigabitethernet Interface Total(pkts/sec) Broadcast(pkts/sec) Multicast(pkts/sec) GE2/1/ GE2/1/ GE2/1/ Overflow: more than 14 decimal digits. --: not supported. Table 2 Output description Field Interface Total(pkts/sec) Broadcast(pkts/sec) Multicast(pkts/sec) Brief interface name. Average rate (in packets per second) of receiving/sending packets during the sampling interval. You can specify the direction of the packets using the inbound and outbound keyword. Average rate (packets per second) of receiving/sending broadcast packets during the sampling interval. You can specify the direction of the packets using the inbound and outbound keyword. Average rate (packets per second) of receiving/sending multicast packets during the sampling interval. You can specify the direction of the packets using the inbound and outbound keyword. 5

7 Field Overflow: more than 14 decimal digits(7 digits for column "Err"). The command displays Overflow in any of the following cases: The data length of an error statistic is greater than 7 decimal digits. The data length of a non-error statistic is greater than 14 decimal digits. --: not supported. The statistics item is not supported. display interface Any view display interface [ interface-type ] [ brief [ down ] ] [ { begin exclude include } regular-expression ] display interface interface-type { interface-number interface-number.subnumber } [ brief ] [ { begin exclude include } regular-expression ] 1: Monitor level interface-type: Type of a specified interface. interface-number: Number of a specified interface. interface-number.subnumber: Subinterface number, where interface-number is an interface number; subnumber is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to brief: Displays brief interface information. If you do not specify this keyword, the command displays detailed interface information. down: Displays information about interfaces in the down state and the causes. If you do not specify this keyword, this command displays information about interfaces in all states. : Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide. begin: Displays the first line that matches the specified regular expression and all lines that follow. exclude: Displays all lines that do not match the specified regular expression. include: Displays all lines that match the specified regular expression. regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters. Use the display interface command to display Ethernet interface information. If the interface type is not specified, the command displays detailed information about all interfaces. If only the interface type is specified, the command displays detailed information about all interfaces of that type. # Display information about Layer 3 interface GigabitEthernet 2/1/1. 6

8 <Sysname> display interface GigabitEthernet 2/1/1 GigabitEthernet2/1/1 current state: DOWN Line protocol current state: DOWN : GigabitEthernet2/1/1 Interface The Maximum Transmit Unit is 1500 Link delay is 1(sec) Internet protocol processing : disabled IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 000f-e IPv6 Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 000f-e Media type is not sure, Port hardware type is No connector Loopback is not set 1000Mbps-speed mode, full-duplex mode Last 300 seconds input: 0 packets/sec 0 bytes/sec 0% Last 300 seconds output: 0 packets/sec 0 bytes/sec 0% Input (total): 0 packets, 0 bytes 0 broadcasts, 0 multicasts Input (normal): 0 packets, 0 bytes - broadcasts, - multicasts Input: 0 input errors, 0 runts, 0 giants, 0 throttles 0 CRC, 0 frame, 0 overruns, - aborts 0 ignored, - parity errors Output (total): 0 packets, 0 bytes - broadcasts, - multicasts, 0 pauses Output (normal): 0 packets, 0 bytes - broadcasts, - multicasts, 0 pauses Output: 0 output errors, - underruns, - buffer failures 0 aborts, 0 deferred, - collisions, 0 late collisions - lost carrier, - no carrier Peak value of input: 0 bytes/sec, at :34:33 Peak value of output: 0 bytes/sec, at :34:33 Table 3 Output description Field GigabitEthernet2/1/1 current state Line protocol current state Current state of the Ethernet interface: DOWN ( Administratively ) The Ethernet interface was shut down with the shutdown command. The interface is administratively down. DOWN ( Link-Aggregation interface down ) The Ethernet interface is physically down because the aggregate interface corresponding to the aggregation group to which the Ethernet interface belongs was shut down with the shutdown command. DOWN The Ethernet interface is administratively up but physically down (possibly because no physical link is present or the link has failed). UP The Ethernet interface is both administratively and physically up. Link layer state of the interface: DOWN The interface is physically down. UP The interface is physically up. 7

9 Field The Maximum Transmit Unit Link delay Internet protocol processing Last 300 seconds input Last 300 seconds output of the interface. The MTU of the interface. Delay before a physical link up/down event is reported. IP packet processing: disabled indicates that IP packets cannot be processed. For an interface configured with an IP address, this field changes into Internet Address is. Average input rate over the last 300 seconds: packets/sec indicates the average input rate in terms of the average number of packets received per second. bytes/sec indicates the average input rate in terms of the average number of bytes received per second. x% indicates the percentage of the average input rate to the total bandwidth. Average output rate over the last 300 seconds: packets/sec indicates the average output rate in terms of the average number of packets output per second. bytes/sec indicates the average output rate in terms of the average number of bytes output per second. x% indicates the percentage of the average output rate to the total bandwidth. Input (total): Input (normal): Input: Output (total): Output (normal): Output: Peak value of input Peak value of output Statistics about inbound and outbound packet errors on the interface. If a statistical item is not supported, a hyphen (-) is displayed. Peak input rate on the interface and time when the peak occurred. Peak output rate on the interface and time when the peak occurred. # Display information about Layer 3 Ethernet subinterface GigabitEthernet 3/0/1.1. <Sysname> display interface gigabitethernet 3/0/1.1 GigabitEthernet 3/0/1.1 current state: DOWN Line protocol current state: DOWN : GigabitEthernet3/0/1.1 Interface The Maximum Transmit Unit is 1500 Internet protocol processing : disabled IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 00e0-fc00-96c1 IPv6 Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 00e0-fc00-96c1 Last clearing of counters: Never 8

10 Table 4 Output description Field GigabitEthernet3/0/1.1 current state Line protocol current state Internet protocol processing IP Packet Frame Type Hardware Address IPv6 Packet Frame Type Last clearing of counters The state of the Ethernet subinterface: DOWN ( Administratively ) The Ethernet subinterface was shut down with the shutdown command. The Ethernet subinterface is administratively down. DOWN ( Link-Aggregation interface down ) The Ethernet subinterface is physically down because the aggregate interface corresponding to the aggregation group to which the subinterface belongs was shut down with the shutdown command. DOWN The Ethernet subinterface is administratively up but physically down (possibly because no physical link is present or the link has failed). UP The Ethernet subinterface is both administratively and physically up. The link layer state of the subinterface: DOWN The interface is physically down. UP The interface is physically up. Disabled indicates that IP packets cannot be processed. For an interface configured with an IP address, this field changes to Internet Address is. Encapsulation format for IPv4 packets. MAC address corresponding to the subinterface. Encapsulation format for IPv6 packets. Time when the reset counts interface command was last used to clear statistics on the subinterface. If the command was never used since the device was started, this field displays Never. # Display information about Layer 2 interface GigabitEthernet 5/1/15. <Sysname> display interface GigabitEthernet 5/1/15 GigabitEthernet3/1/15 current state: DOWN IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 000f-e246-6e5b : GigabitEthernet3/1/15 Interface Loopback is not set Media type is not sure, Port hardware type is No connector Unknown-speed mode, full-duplex mode Link speed type is autonegotiation, link duplex type is force link Flow-control is not enabled The Maximum Frame Length is 1552 Broadcast MAX-ratio: 100% Unicast MAX-ratio: 100% Multicast MAX-ratio: 100% PVID: 100 Link delay is 1(sec) Port link-type: access Tagged VLAN ID : none 9

11 Untagged VLAN ID : 100 Port priority: 0 Last clearing of counters: Never Peak value of input: 0 bytes/sec, at :39:27 Peak value of output: 0 bytes/sec, at :39:27 Last 300 seconds input: 0 packets/sec 0 bytes/sec -% Last 300 seconds output: 0 packets/sec 0 bytes/sec -% Input (total): 0 packets, 0 bytes - unicasts, 0 broadcasts, 0 multicasts, - pauses Input (normal): 0 packets, 0 bytes - unicasts, - broadcasts, - multicasts, - pauses Input: 0 input errors, 0 runts, 0 giants, 0 throttles 0 CRC, 0 frame, 0 overruns, - aborts 0 ignored, - parity errors Output (total): 0 packets, 0 bytes - unicasts, - broadcasts, - multicasts, 0 pauses Output (normal): 0 packets, 0 bytes - unicasts, - broadcasts, - multicasts, 0 pauses Output: 0 output errors, - underruns, - buffer failures 0 aborts, 0 deferred, - collisions, 0 late collisions - lost carrier, - no carrier Table 5 Output description Field GigabitEthernet 5/1/15 current state IP Packet Frame Type Unknown-speed mode Broadcast MAX-ratio Unicast MAX-ratio Multicast MAX-ratio PVID Link delay Port link-type Tagged VLAN ID Untagged VLAN ID Physical state of the Ethernet interface. For more information, see Table 6. Ethernet framing format on the interface. of the interface. The interface will negotiate a speed with its peer. Broadcast suppression threshold as a percentage of the interface transmission capability. When the threshold is exceeded, the interface drops broadcast packets. Unknown unicast suppression threshold as a percentage of the interface transmission capability. When the threshold is exceeded, the interface drops unknown unicast packets. Multicast suppression threshold as a percentage of the interface transmission capability. When the threshold is exceeded, the interface drops multicast packets. Default VLAN ID. Delay before a physical link up/down event is reported. Interface link type, which could be access, trunk, and hybrid. VLANs whose packets are sent through the port with VLAN tag kept. VLANs whose packets are sent through the port with VLAN tag stripped off. 10

12 Field Last clearing of counters Peak value of input Peak value of output Last 300 seconds input: 0 packets/sec 0 bytes/sec Last 300 seconds output: 0 packets/sec 0 bytes/sec Input (total): 0 packets, 0 bytes - unicasts, 0 broadcasts, 0 multicasts, - pauses Input (normal): 0 packets, 0 bytes - unicasts, - broadcasts, - multicasts, - pauses input errors runts giants throttles CRC frame overruns Time when the reset counts interface command was last used to clear statistics on the subinterface. If the command was never used since the device was started, this field displays Never. Peak value of inbound traffic, in bytes/sec. Peak value of outbound traffic, in bytes/sec. Average rate of input and output traffic in the last 300 seconds, in pps and Bps. Packet statistics on the inbound direction of the interface, including the statistics of normal packets, abnormal packets, and normal pause frames, in packets and bytes. Number of unicast packets, broadcast packets, multicast packets, and pause frames on the inbound direction of the interface. Normal packet statistics on the inbound direction of the interface, including the statistics of normal packets and pause frames, in packets and bytes. Number of unicast packets, broadcast packets, multicast packets, and pause frames on the inbound direction of the interface. Input packets with errors. Frames received that were shorter than 64 bytes, yet in correct formats, and contained valid CRCs. Frames received that were longer than the maximum allowed frame length of the interface: The word giants refers to frames that are longer than 1518 bytes (without VLAN tags) or 1522 bytes (with VLAN tags). The number of times the receiver on the interface was disabled, possibly because of buffer or CPU overload. Total number of packets received that had a normal length, but contained checksum errors. Total number of frames that contained checksum errors and a non-integer number of bytes. Number of times the receive rate of the interface exceeded the capacity of the input queue, causing packets to be discarded. 11

13 Field aborts ignored parity errors Output (total): 0 packets, 0 bytes - unicasts, - broadcasts, - multicasts, 0 pauses Output (normal): 0 packets, 0 bytes - unicasts, - broadcasts, - multicasts, 0 pauses output errors underruns buffer failures aborts deferred collisions late collisions lost carrier no carrier Total number of illegal packets received, including: Fragment frames Frames that were shorter than 64 bytes (with an integral or non-integral length) and contained checksum errors. Jabber frames Frames that were longer than 1518 or 1522 bytes and contain checksum errors (with an integral or non-integral length). Symbol error frames Frames that contained at least one undefined symbol. Unknown operation code frames Frames that were MAC control frames, excluding PAUSE frames. Length error frames Frames whose length fields did not match the actual frame lengths (46 to 1500 bytes). Number of received packets ignored by the interface because the interface hardware ran low on internal buffers. Total number of frames with parity errors. Packet statistics on the outbound direction of the interface, including the statistics of normal packets, abnormal packets, and normal pause frames, in packets and bytes. Number of unicast packets, broadcast packets, multicast packets, and pause frames on the outbound direction of the interface. Normal packet statistics on the outbound direction of the interface, including the statistics of normal packets and pause frames, in packets and bytes. Number of unicast packets, broadcast packets, multicast packets, and pause frames in the outbound direction of the interface. If a statistical item is not supported, a hyphen (-) is displayed. Output packets with errors. Number of times the transmit rate of the interface exceeded the capacity of the output queue, causing packets to be discarded. This is a very rare hardware-related problem. Number of packets dropped because the interface ran low on output buffers. Number of packets that failed to be transmitted due to causes such as Ethernet collisions. Number of frames whose first transmission attempt was delayed, due to traffic on the network media, and that were successfully transmitted later. Number of frames that the interface stopped transmitting because Ethernet collisions were detected during transmission. Number of times frames were delayed due to the detection of collisions after the first 512 bits of the frames were already on the network. Number of times the carrier was lost during transmission. This counter applies to serial WAN interfaces. Number of times the carrier was not present in the transmission. This counter applies to serial WAN interfaces. 12

14 Table 6 on the possible physical states of a Layer 2 Ethernet interface Field UP DOWN DOWN ( Administratively ) DOWN ( Link-Aggregation interface down ) DOWN ( OAM connection failure ) DOWN ( Loopback detection-protected ) DOWN ( BPDU-protected ) The interface is physically up. The interface is physically down because no physical connection exists (possibly reason: the network cable is disconnected or faulty). The interface is physically down because it was shut down with the shutdown command. To restore its physical state, use the undo shutdown command. The interface is physically down because the aggregate interface corresponding to the aggregation group to which it belongs was shut down with the shutdown command. The interface is physically down because an OAM connection fails to be established on it or the OAM connection is disconnected. The interface is shut down because a loop is detected on it. The interface is shut down by the BPDU guard function. # Display information about Layer 3 Ethernet subinterface GigabitEthernet 2/1/ When packet statistics collection is disabled (the default state) on the subinterface. <Sysname> display interface GigabitEthernet 2/1/1.100 GigabitEthernet2/1/1.100 current state: UP Line protocol current state: UP : GigabitEthernet2/1/1.100 Interface The Maximum Transmit Unit is 1500 Internet protocol processing : disabled IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 000f-e288-d480 IPv6 Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 000f-e288-d480 Last clearing of counters: Never When packet statistics collection is enabled on the subinterface. <Sysname> display interface GigabitEthernet 2/1/1.100 GigabitEthernet2/1/1.100 current state: UP Line protocol current state: UP : GigabitEthernet2/1/1.100 Interface The Maximum Transmit Unit is 1500 Internet Address is /24 Primary IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 000f-e288-d480 IPv6 Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 000f-e288-d480 Last clearing of counters: 15:07:48 Thu 10/26/2090 Input (total): 1 packets, 128 bytes (broadcasts) 0 packets, 0 bytes (multicasts) 0 packets, 0 bytes (unicasts) 1 packets, 128 bytes Output (total): 0 packets, 0 bytes (broadcasts) 0 packets, 0 bytes (multicasts) 0 packets, 0 bytes (unicasts) 0 packets, 0 bytes 13

15 Table 7 Output description Field GigabitEthernet2/1/1.100 current state Line protocol current state The Maximum Transmit Unit Internet protocol processing IP Packet Frame Type, Hardware Address IPv6 Packet Frame Type, Hardware Address Last clearing of counters Input Output Physical layer state of the subinterface Link layer state of the subinterface about the subinterface MTU on the subinterface Capability of processing IP packets If this feature is disabled, IP packets cannot be processed. If an IP address is assigned for the interface, this field changes to Internet Address is. Frame packet and hardware address of an outgoing packet Frame packet and hardware address of an outgoing IPv6 packet Time when the counters are cleared. If this field is never, the counters have never been cleared. Statistics about input/output packets. # Display brief information about all interfaces. <Sysname> display interface brief The brief information of interface(s) under route mode: Link: ADM - administratively down; Stby - standby Protocol: (s) - spoofing Interface Link Protocol Main IP GE2/1/1 UP UP Link to CoreRouter GE2/1/2 Stby DOWN -- Loop0 UP UP(s) NULL0 UP UP(s) -- Vlan1 UP DOWN -- Vlan999 UP UP The brief information of interface(s) under bridge mode: Link: ADM - administratively down; Stby - standby Speed or Duplex: (a)/a - auto; H - half; F - full Type: A - access; T - trunk; H - hybrid Interface Link Speed Duplex Type PVID GE2/1/3 DOWN auto F A 1 GE2/1/4 DOWN auto F A 1 # Display the brief interface information about interfaces in the up state. <Sysname> display interface brief include UP The brief information of interface(s) under route mode: Link: ADM - administratively down; Stby - standby Protocol: (s) - spoofing 14

16 Interface Link Protocol Main IP GE2/1/1 UP UP Link to CoreRouter Loop0 UP UP(s) NULL0 UP UP(s) -- Vlan1 UP DOWN -- Vlan999 UP UP # Display the brief information about all but Ethernet interfaces. <Sysname> display interface brief exclude GE The brief information of interface(s) under route mode: Link: ADM - administratively down; Stby - standby Protocol: (s) - spoofing Interface Link Protocol Main IP Loop0 UP UP(s) NULL0 UP UP(s) -- Vlan1 UP DOWN -- Vlan999 UP UP # Display information about interfaces in the down state and the relevant causes. <Sysname> display brief interface down The brief information of interface(s) under route mode: Link: ADM - administratively down; Stby - standby Interface Link Cause GE2/1/2 DOWN Not connected GE2/1/3 DOWN Not connected GE2/1/4 DOWN Not connected GE2/1/5 DOWN Not connected GE2/1/6 DOWN Not connected GE2/1/7 DOWN Not connected GE2/1/8 DOWN Not connected Tun1 DOWN Not connected The brief information of interface(s) under bridge mode: Link: ADM - administratively down; Stby - standby Interface Link Cause BAGG2 DOWN Not connected GE2/1/1 DOWN Not connected Table 8 Output description Field The brief information of interface(s) under route mode: Link: ADM - administratively down; Stby - standby The command displays brief information about Layer 3 interfaces. Link state of the interface: ADM The interface has been shut down by the network administrator. To recover its physical layer state, perform the undo shutdown command. Stby The interface is a standby interface. 15

17 Field Protocol: (s) - spoofing Interface Link Protocol The brief information of interface(s) under bridge mode: If the network layer protocol state of an interface is shown as UP, but its link is an on-demand link or not present at all, its protocol attribute includes the spoofing flag (an s in parentheses). This attribute is typical of interface Null 0 and the loopback interfaces. Interface name. Physical link state of the interface: UP The link is up. DOWN The link is physically down. ADM The link has been administratively shut down. To recover its physical state, perform the undo shutdown command. Stby The interface is a standby interface. Protocol connection state of the interface, which can be UP, DOWN, or UP(s). Brief information about Layer 2 interfaces. If the speed of an interface is automatically negotiated, its speed attribute includes the auto negotiation flag, letter a in parentheses. Speed or Duplex: (a)/a - auto; H - half; F - full Type: A - access; T - trunk; H - hybrid Speed Duplex Type PVID Cause If the duplex mode of an interface is automatically negotiated, its duplex mode attribute includes the following options: (a)/a Auto negotiation H Half negotiation F Full negotiation Link type options for Ethernet interfaces. Interface rate, in bps. Duplex mode of the interface: A Auto-negotiation F Full duplex F(a) Auto-negotiated full duplex H Half duplex H(a) Auto-negotiated half duplex Link type of the interface: A Access H Hybrid T Trunk Default VLAN ID of the interface. Causes for the physical state of an interface to be DOWN. For more information, see Table 10. Table 9 Acronyms for different types of interfaces Interface name GigabitEthernet Ten-GigabitEthernet Acronyms GE XGE 16

18 Table 10 Causes for the physical state of an interface to be DOWN Field Not connected Administratively Link-Aggregation interface down OAM connection failure Loopback detection-protected BPDU-protected No physical connection exists (possibly because the network cable is disconnected or faulty). The port was brought down with the shutdown command. To restore the physical state of the interface, use the undo shutdown command. The aggregate interface corresponding to the aggregation group to which the interface belongs was shut down with the shutdown command. OAM connection fails (possibly because the connection fails to be established or the connection is disconnected). The interface is shut down because a loop is detected on it. The interface is shut down by the BPDU guard function. duplex duplex { auto full half } undo duplex Ethernet interface view auto: Sets the interface to operate in auto-negotiation mode. full: Sets the interface to operate in full duplex mode. half: Sets the interface to operate in half-duplex mode. This keyword is not available for optical ports. Use the duplex command to set the duplex mode for an Ethernet interface. Use the undo duplex command to restore the default duplex mode of the Ethernet interface. By default, the duplex mode is auto for Ethernet interfaces. 10-GE interfaces do not support this command. # Configure GigabitEthernet 2/1/1 to operate in full-duplex mode. [Sysname] interface GigabitEthernet 2/1/1 [Sysname-GigabitEthernet2/1/1] duplex full 17

19 flag sdh flag { j0 j1 } sdh value undo flag { j0 j1 } sdh Ten-GigabitEthernet interface view j0: Sets the regenerator section trace byte. j1: Sets the path trace byte. value: Value of J0 or J1 bytes, a string of 1 to 15 characters. Use the flag sdh command to set a value for the overhead bytes J0/J1 in Synchronous Digital Hierarchy (SDH) frames when the 10-GE interface works in WAN mode. Use the undo flag command to restore the default value of J0/J1 bytes. By default, the value of all J0 and J1 bytes is all 0s. Related commands: port-mode. NOTE: This command is valid only when the 10-GE interface works in WAN mode. # Set J0 bytes in SDH frames to Sysname. [Sysname] interface ten-gigabitethernet 3/1/2 [Sysname-Ten-GigabitEthernet3/1/2] port-mode wan [Sysname-Ten-GigabitEthernet3/1/2] flag j0 sdh Sysname flow-control flow-control undo flow-control Ethernet interface view 18

20 None Use the flow-control command to enable TxRx mode generic flow control on an Ethernet interface. Use the undo flow-control command to disable generic flow control on the Ethernet interface. TxRx mode flow control enables an Ethernet interface to receive common pause frames from its peer, and send common pause frames to notify its peer of congestions. By default, generic flow control on an Ethernet interface is disabled. With the flow-control command configured, an interface can both send and receive flow control frames: When congested, the interface sends a flow control frame to its peer. Upon receiving a flow control frame from the peer, the interface suspends sending packets. To implement flow control on a link, you must enable the generic flow control function at both ends of the link. # Enable TxRx mode generic flow control on the interface GigabitEthernet 2/1/1. [Sysname] interface gigabitethernet 2/1/1 [Sysname-GigabitEthernet2/1/1] flow-control flow-interval flow-interval interval undo flow-interval System view interval: Sets the statistics polling interval, ranging from 5 to 300 seconds that must be a multiple of 5. Use the flow-interval command to set the interface statistics polling interval. Use the undo flow-interval command to restore the default interval. By default, the statistics polling interval on Ethernet interfaces is 300 seconds. # Set the statistics polling interval to 100 seconds. [Sysname] flow-interval

21 interface interface interface-type { interface-number interface-number.subnumber } System view interface-type: Interface type. interface-number: Interface number. interface-number.subnumber: Logical subinterface number, where interface-number is the number of the main interface, and subnumber is the number of a subinterface created under the interface. The value range for the subnumber argument is 1 to Use the interface command to enter interface/subinterface view. With the interface-number.subnumber argument specified, if the subinterface identified by the argument does not exist, this command creates the subinterface first. When you create an Ethernet subinterface, the system uses the subinterface number as the VLAN ID of the Ethernet subinterface. For example, the initial VLAN ID of Ethernet subinterface GigabitEthernet 3/1/2.10 is 10. Note that for the local and remote Ethernet subinterfaces to transmit traffic correctly, configure them with the same subinterface number and VLAN ID. link-delay # Enter Ethernet interface view of GigabitEthernet2/1/1. [Sysname] interface GigabitEthernet 2/1/1 [Sysname-GigabitEthernet2/1/1] # Create Ethernet subinterface GigabitEthernet 3/1/2.23. [Sysname] interface GigabitEthernet 3/1/2.23 [Sysname-GigabitEthernet3/1/2.23] link-delay delay-time undo link-delay Ethernet interface view 20

22 loopback delay-time: Sets the physical state change suppression interval on the Ethernet interface. The value ranges from 0 to 10 seconds. Use the link-delay command to set the physical state change suppression interval on an Ethernet interface. Use the undo link-delay command to restore the default. By default, the physical state change suppression interval on an Ethernet interface is one second. H3C does not recommend you to configure the command on ports that are enabled with MSTP. NOTE: The command is effective to the ports in the down state, but is ineffective to those manually shut down with the shutdown command. # Enable physical state change suppression on GigabitEthernet 2/1/1, setting the suppression interval to 8 seconds. [Sysname] interface GigabitEthernet 2/1/1 [Sysname-GigabitEthernet2/1/1] link-delay 8 loopback { external internal } undo loopback Ethernet interface view external: Enables external loopback testing to test all on-chip functions related to the Ethernet interface. This keyword is not supported. internal: Enables internal loopback testing to test the hardware of Ethernet interfaces. Use the loopback command to enable loopback testing on an Ethernet interface. Use the undo loopback command to disable loopback testing on an Ethernet interface. By default, loopback testing is disabled on Ethernet interfaces. 21

23 NOTE: Enable loopback testing for troubleshooting, such as identifying an Ethernet interface problem. During loopback testing, the Ethernet interface is operating in full duplex mode, regardless of its duplex configuration. After loopback testing is disabled, the duplex configuration of the interface is restored. # Enable internal loopback testing on GigabitEthernet 2/1/1. [Sysname] interface GigabitEthernet 2/1/1 [Sysname-GigabitEthernet2/1/1] loopback internal port link-mode port link-mode { bridge route } undo port link-mode Ethernet interface view bridge: Specifies the Layer 2 mode. route: Specifies the Layer 3 mode. Use the port link-mode command to change the link mode of an Ethernet interface. Use the undo port link-mode command to restore the default. By default, an Ethernet interface operates in route mode. According to the layer at which the router processes received data packets, Ethernet interfaces may operate in bridge or route mode. This command is applicable only to the Ethernet interfaces whose link mode can be changed. NOTE: After you change the link mode of an Ethernet interface, all the settings of the Ethernet interface are restored to their defaults under the new link mode. # Configure GigabitEthernet 2/1/1 to operate in Layer 2 mode. [Sysname] interface GigabitEthernet 2/1/1 [Sysname-GigabitEthernet2/1/1] port link-mode bridge 22

24 port link-mode interface-list port link-mode { bridge route } interface-list System view port-mode bridge: Specifies the Layer 2 mode. route: Specifies the Layer 3 mode. interface-list: Ethernet interface list, in the format of interface-type interface-number [ to interface-type interface-number ] &<1-10>, where &<1-10> indicates that you can specify up to 10 ports or port ranges. Use the port link-mode interface-list command to change the link mode of Ethernet interfaces. Depending on the hardware structure of interface cards, for a router, some interfaces can operate only as Layer 2 Ethernet interfaces (in bridge mode), some can operate only as Layer 3 Ethernet interfaces (in route mode), and others can operate either as Layer 2 or Layer 3 Ethernet interfaces (you can use commands to set the link mode to bridge or route). Configuring the port link-mode interface-list command in system view and configuring the port link-mode command in Ethernet interface view lead to the same result. The difference between the two commands is that the former changes the link mode of multiple Ethernet interfaces in batch, and the latter changes the link mode of one Ethernet interface at a time. NOTE: After you change the link mode of an Ethernet interface, all the settings of the Ethernet interface are restored to their defaults under the new link mode. The link mode configuration for an Ethernet interface in system view and that in interface view supersede each other, and the one configured last takes effect. # Configure GigabitEthernet 3/1/1 through GigabitEthernet 3/1/4 to operate in Layer 2 mode. [Sysname] port link-mode bridge GigabitEthernet 3/1/1 to GigabitEthernet 3/1/4 port-mode { lan wan } undo port-mode Ten-GigabitEthernet interface view 23

25 lan: Specifies the LAN mode. A port operating in this mode transmits Ethernet packets and connects an Ethernet network. wan: Specifies the WAN mode. A port operating in this mode transmits Synchronous Digital Hierarchy (SDH) packets and connects an SDH network. In addition, it supports point-to-point packet transmission only. Use the port-mode command to configure a 10-GE interface to work in LAN or WAN mode. Use the undo port-mode command to restore the default. By default, a 10-GE interface operates in LAN mode. Configure Ten-GigabitEthernet 2/1/1 to operate in the WAN mode. [Sysname] interface ten-gigabitethernet 2/1/1 [Sysname-Ten-GigabitEthernet2/1/1] port-mode wan reset counters interface User view reset counters interface [ interface-type [ interface-number interface-number.subnumber ] ] interface-type: Interface type. interface-number: Interface number. interface-number.subnumber: Logical subinterface number, where interface-number is the number of the main interface, and subnumber is the number of a subinterface created under the interface. The subnumber argument ranges from 1 to Use the reset counters interface command to clear the statistics of an interface/subinterface. Before sampling network traffic within a specific period of time on an interface, you need to clear the existing statistics. If the interface type is not specified, this command clears the statistics of all the interfaces. If only the interface type is specified, this command clears the statistics of the interfaces of the specified type. If both the interface type and interface/subinterface number are specified, this command clears the statistics of the specified interface/subinterface. 24

26 shutdown # Clear the statistics of interface GigabitEthernet 2/1/1. <Sysname> reset counters interface GigabitEthernet 2/1/1 shutdown undo shutdown Ethernet interface view, Ethernet subinterface view, port group view None Use the shutdown command to shut down an Ethernet interface or subinterface. Use the undo shutdown command to bring up an Ethernet interface or subinterface. By default, Ethernet interfaces/subinterfaces are in the up state. You may need to shut down and then bring up an Ethernet interface to activate configuration changes such as the speed or duplex mode changes. speed # Shut down and then bring up interface GigabitEthernet 2/1/1. [Sysname] interface GigabitEthernet 2/1/1 [Sysname-GigabitEthernet2/1/1] shutdown [Sysname-GigabitEthernet2/1/1] undo shutdown speed { auto } undo speed Ethernet interface view 10: Sets the interface speed to 10 Mbps. 100: Sets the interface speed to 100 Mbps. 25

27 1000: Sets the interface speed to 1,000 Mbps. auto: Enables the interface to negotiate a speed with its peer. Use the speed command to set the speed of an Ethernet interface. Use the undo speed command to restore the default. By default, an Ethernet interface negotiates a speed with its peer. For an Ethernet electrical port, use the speed command to set its speed to match the speed of the peer interface. For an optical port, use the speed command to set its speed to match the rate of a pluggable optical transceiver. # Set the speed of Ethernet interface GigabitEthernet 2/1/1 to 100 Mbps. [Sysname] interface GigabitEthernet 2/1/1 [Sysname-GigabitEthernet2/1/1] speed 100 Layer 2 Ethernet interface configuration commands broadcast-suppression broadcast-suppression { ratio pps max-pps kbps max-kbps } undo broadcast-suppression Layer 2 Ethernet interface view, port group view ratio: Sets the broadcast suppression threshold as a percentage of the transmission capability of an Ethernet interface. The smaller the percentage, the less broadcast traffic is allowed to pass through. The value of the ratio argument ranges from 1 to 100, and must be 100 for Ethernet interfaces on an SPC card. pps max-pps: Specifies the maximum number of broadcast packets that the Ethernet interface can forward per second, ranging from 1 to 148,810 pps. kbps max-kbps: Specifies the maximum number of kilobits of broadcast traffic that the Ethernet interface can forward per second, ranging from 1 to 1,000,000 kbps. When the pps or kbps keyword is specified, and a suppression granularity larger than 1 is specified on the router, the value of the pps or kbps keyword must be no smaller than and an integral multiple of the granularity. The broadcast suppression threshold value configured through this keyword on an Ethernet interface may not be the one that actually takes effect. To display the actual broadcast suppression threshold value on an Ethernet interface, you can use the display interface command. 26

28 When the pps or kbps keyword is not specified, or the suppression granularity is set to 1, the value of the pps or kbps keyword must be no smaller than 1, and the broadcast suppression threshold value is the one that actually takes effect on the Ethernet interface. Use the broadcast-suppression command to set the broadcast suppression threshold on an Ethernet interface or a group of Ethernet interfaces. Use the undo broadcast-suppression command to restore the default. By default, Ethernet interfaces do not suppress broadcast traffic. If you execute this command in Ethernet interface view, the configuration takes effect only on the interface. If you execute this command in port-group view, the configuration takes effect on all the ports in the port group. When broadcast traffic exceeds the broadcast suppression threshold, the interface discards broadcast packets until the broadcast traffic drops below the threshold. If you set different broadcast suppression thresholds in Ethernet interface view or port-group view multiple times, the one configured last takes effect. NOTE: SPE cards support the ratio argument only among the keywords and arguments of this command. # Set the broadcast suppression threshold to 20% on Ethernet interface GigabitEthernet 2/1/1. [Sysname] interface GigabitEthernet 2/1/1 [Sysname-GigabitEthernet2/1/1] broadcast-suppression 20 display port-group manual Any view display port-group manual [ all name port-group-name ] [ { begin exclude include } regular-expression ] all: Specifies all the manual port groups. name port-group-name: Specifies the name of a manual port group, a string of 1 to 32 characters. : Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide. begin: Displays the first line that matches the specified regular expression and all lines that follow. exclude: Displays all lines that do not match the specified regular expression. include: Displays all lines that match the specified regular expression. 27

29 regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters. Use the display port-group manual command to display the information about a manual port group or all the manual port groups. If you provide the port-group-name argument, this command displays the details for a specified manual port group, including its name and the Ethernet interface ports included. If you provide the all keyword, this command displays the details for all manual port groups, including their names and the Ethernet interface ports included. Absence of parameters indicates that the names of all the port groups will be displayed. # Display the names of all the port groups. <Sysname> display port-group manual The following manual port group exist(s): group1 group2 # Display detailed information about all manual port groups. <Sysname> display port-group manual all Member of group1: GigabitEthernet2/1/1 GigabitEthernet2/1/3 GigabitEthernet2/1/4 GigabitEthernet2/1/6 GigabitEthernet2/1/7 GigabitEthernet3/1/2 GigabitEthernet3/1/3 GigabitEthernet2/1/2 GigabitEthernet2/1/5 GigabitEthernet3/1/1 Member of group2: None group-member group-member interface-list undo group-member interface-list Port group view interface-list: Ethernet interface list, in the form of interface-type interface-number [ to interface-type interface-number ] &<1-10>, where &<1-10> indicates that you can specify up to 10 port or port ranges. Use the group-member command to add an Ethernet interface to a specified manual port group. 28