N:1 PVC Mapping to PWE with Nonunique VPIs
|
|
|
- Rose Casey
- 5 years ago
- Views:
Transcription
1 The N:1 PVC Mapping to PseudoWire Emulation (PWE) with Nonunique virtual path identifiers (VPIs) feature maps one or more ATM permanent virtual circuits (PVCs) to a single pseudowire (PW). There are two modes of AAL0 encapsulation, N:1 and 1:1 mapping. In N:1 mapping, multiple unrelated virtual path identifier/virtual channel identifier (VPI/VCI) are carried over a single Multiprotocol Label Switching (MPLS) PW. This is an efficient mapping method because less resources are used from the MPLS network. In 1:1 mapping, a single VPI/VCI is carried over a single MPLS PW. Benefits of this feature include the following: Aggregate quality of service (QoS) can be applied to related PVCs. Bandwidth is conserved with the reduction in the number of pseudowires that are used. Note This is not applicable for Cisco ASR 900 RSP3 Module. Restrictions for, page 1 Information About, page 2 How to Configure, page 3 Configuration Examples for, page 5 Verifying the Configuration, page 5 Additional References, page 6 Restrictions for N:1 permanent virtual circuits (PVC) mapping configuration is supported only on multipoint subinterfaces; it is not supported on main interfaces or point-to-point subinterfaces. N:1 PVC mapping mode is not supported on Access Circuit Redundancy subinterfaces. Preconfigured PVCs cannot exist on the multipoint subinterface on which you want to configure N:1 PVC mapping. An attachment circuit that has been bound to a pseudowire cannot be removed unless all Layer 2 virtual circuits (VCs) have been removed. 1
2 Information About Layer 3 PVCs cannot be configured on N:1 subinterfaces. Cell packing values configured under a VC class attached to the PVC, main interface, or subinterface will not be inherited by N:1 PVCs. Operation, Administration, and Maintenance (OAM) functionality is not supported on N:1 Layer 2 PVCs. OAM cells coming from the customer edge (CE) network will be treated as normal data traffic and will traverse through the pseudowire. Only ATM adaptation layer type 0 (AAL0) encapsulation is supported for N:1 PVCs. The service policy configuration can be configured only at the subinterface level for N:1 PVCs. ATM N:1 and PVP modes cannot be configured on different subinterfaces that belong to a physical interface. You cannot change the ATM interface mode from point-to-point to multipoint or from multipoint to point-to-point. If you change a layer 2 ATM interface to a layer 3 ATM interface, traffic will not flow. Information About N:1 PVC Mapping to PWE with Nonunique VPIs Feature Description To transport ATM cells over Multiprotocol Label Switching (MPLS), a VC is established between the provider edge (PE) routers on both ends of the MPLS backbone. With the N:1 permanent virtual circuit (PVC) Mapping to PseudoWire Emulation (PWE) with Nonunique VPIs feature, multiple PVCs irrespective of their Virtual Path Identifiers (VPIs), are transported over a single pseudowire configured on a subinterface. ( N:1 refers to the number of PVCs transported over one pseudowire). ATM cells are packed together in a single frame and sent over the single pseudowire. The ATM cell header information is packed together with the cell payload on a per-cell basis in the packets so that packets received at the egress end are unpacked and the ATM cells are mapped to the respective PVCs. In N:1 PVC mapping mode, the device can pack cells only from a single PVC in an MPLS packet to transmit over a pseudowire; cells from multiple PVCs cannot be packed in a single MPLS packet and mapped to a single pseudowire for transmission. However, if a device receives an MPLS packet that is packed with cells from multiple PVCs, then those cells will be unpacked and sent to the respective PVCs. 2
3 How to Configure How to Configure N:1 PVC Mapping to PWE with Nonunique VPIs Configuring SUMMARY STEPS 1. enable 2. configure terminal 3. interface atm slot/subslot/port 4. atm mcpt-timers timer1 timer2 timer3 5. exit 6. configure terminal 7. interface atm slot/subslot/port.subslot multipoint 8. no ip address 9. atm enable-ilmi-trap 10. cell-packing maxcells mcpt-timer timer-number 11. xconnect peer-ipaddress vc-id encapsulation mpls 12. pvc vpi/vci l2transport 13. Repeat Step 12 for the number of PVCs that you want to configure. 14. end DETAILED STEPS Step 1 Step 2 Command or Action enable Device> enable configure terminal Purpose Enables privileged EXEC mode. Enter your password if prompted. Enters global configuration mode. Step 3 interface atm slot/subslot/port Device(config)# interface atm 9/1/1 Enables the ATM interface and enters interface configuration mode. 3
4 Configuring Step 4 Command or Action atm mcpt-timers timer1 timer2 timer3 Device(config-if)# atm mcpt-timers Purpose Sets the Maximum Cell Packing Timeout (MCPT) values in microseconds. The MCPT timer sets the time for which the device waits for the raw cells (AAL0 encapsulation) to be packed into a single packet for punting to the pseudowire. Step 5 exit Exits interface configuration mode. Step 6 Device(config-if)# exit configure terminal Enters global configuration mode. Step 7 Step 8 interface atm slot/subslot/port.subslot multipoint Device(config)# interface atm 9/1/1.1 multipoint no ip address Enters subinterface configuration mode and creates a multipoint subinterface on the given port on the specified ATM Shared Port Adapter (SPA). Removes the interface IP address. Step 9 Device(config-subif)# no ip address atm enable-ilmi-trap Device(config-subif)# atm enable-ilmi-trap Generates an Integrated Local Management Interface (ILMI) atmfvccchange trap when an ATM interface or subinterface is enabled or shut down. Step 10 Step 11 cell-packing maxcells mcpt-timer timer-number Device(config-subif)# cell-packing 20 mcpt-timer 2 xconnect peer-ipaddress vc-id encapsulation mpls Device(config-subif)# xconnect encapsulation mpls Enables ATM over MPLS to pack multiple ATM cells into each MPLS packet within the MCPT timing. (Optional) Enables the attachment circuit and specifies the IP address of the peer, a VC ID, and the data encapsulation method. Step 12 pvc vpi/vci l2transport Assigns a VPI and virtual channel identifier (VCI). Device(config-subif)# pvc 10/100 l2transport 4
5 Configuration Examples for Step 13 Step 14 Command or Action Repeat Step 12 for the number of PVCs that you want to configure. end Device(config-subif)# end Purpose Exits subinterface configuration mode and returns to privileged EXEC mode. Configuration Examples for N:1 PVC Mapping to PWE with Nonunique VPIs Configuring The following example shows how to configure the N:1 ATM permanent virtual circuit (PVC) mapping to pseudowires with non unique virtual path identifiers ( VPIs): Device> enable Device(config)# interface atm 0/1/0 Device(config-if)# atm mcpt-timers Device(config-if)# exit Device(config)# interface atm 0/1/0.1 multipoint Device(config-subif)# no ip address Device(config-subif)# atm enable-ilmi-trap Device(config-subif)# cell packing 20 mcpt-timer 2 Device(config-subif)# xconnect encapsulation mpls Device(config-subif)# pvc 10/100 l2transport Device(config-subif)# pvc 11/122 l2transport Device(config-subif)# pvc 19/231 l2transport Device(config-subif)# end Verifying the Configuration To verify the Configuration, use the show mpls l2transport vc command in user EXEC or privileged EXEC mode. Router# show mpls l2transport vc Local intf Local circuit Dest address VC ID Status AT0/1/1.1 ATM CELL ATM0/1/ UP interface ATM0/0/0.1/1/1/1 5
6 Additional References atm mcpt-timers interface ATM0/0/0.1/1/1/1.1 multipoint no ip address no atm enable-ilmi-trap cell-packing 2 mcpt-timer 1 xconnect encapsulation mpls pvc 10/100 l2transport pvc 20/200 l2transport pvc 30/300 l2transport Additional References Related Documents Related Topic Cisco IOS commands ATM commands Document Title Master Command List Asynchronous Transfer Mode Command Reference Technical Assistance Description The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password. Link 6
N:1 PVC Mapping to PWE with Nonunique VPIs
N:1 PVC Mapping to PWE with Nonunique VPIs The N:1 PVC Mapping to PseudoWire Emulation (PWE) with Nonunique virtual path identifiers (VPIs) feature maps one or more ATM permanent virtual circuits (PVCs)
Configuring Inverse Muliplexing over ATM
This feature module describes how to configure Inverse Multiplexing over ATM (IMA) to transport ATM traffic over a bundle of T1 or E1 cables. This feature s the expansion of WAN bandwidth from T1 speeds,
ATM Hierarchical Shaping ATM VC into VP Shaping, page 1
ATM Hierarchical Shaping ATM VC into VP Shaping, page 1 Traffic shaping is a quality of service (QoS) mechanism that is used to manage the network traffic by shaping the traffic to a specified rate. Traffic
QoS Group Match and Set for Classification and Marking
QoS Group Match and Set for Classification and Marking This feature provides the capability of matching and classifying traffic on the basis of the QoS group value. Finding Feature Information, on page
L2VPN Interworking. Finding Feature Information
Interworking is a transforming function that is required to interconnect two heterogeneous attachment circuits (ACs). Several types of interworking functions exist. The function that is used would depend
Marking Network Traffic
Marking network traffic allows you to set or modify the attributes for traffic (that is, packets) belonging to a specific class or category. When used in conjunction with network traffic classification,
Time Division Multiplexing Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900 Series)
Time Division Multiplexing Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900 Series) First Published: 2014-11-01 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706
Marking Network Traffic
Marking network traffic allows you to set or modify the attributes for traffic (that is, packets) belonging to a specific class or category. When used in conjunction with network traffic classification,
Time Division Multiplexing Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900 Series)
Time Division Multiplexing Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900 Series) First Published: 2014-11-01 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706
Frame Relay over L2TPv3
The (FRoL2TPv3) feature enables Frame Relay switching over Layer 2 Tunnel Protocol Version 3 (L2TPv3). The feature works with like interfaces and disparate interfaces (L2VPN interworking). Finding Feature
Layer 2 Local Switching
Layer 2 Local Switching First Published: December 17, 2003 Last Updated: November 24, 2010 The Layer 2 Local Switching feature allows you to switch Layer 2 data in two ways: Between two interfaces on the
Configuring Layer 2 Local Switching
CHAPTER 17 The Layer 2 Local Switching feature allows you to switch Layer 2 data between two physical or virtual interfaces of the same type on the same router. The interfaces can be on the same line card
Access Circuit Redundancy Support for IMA
The Access Circuit Redundancy Support (ACR) for Inverse Multiplexing over ATM (IMA) feature provides a converged IP or Multiprotocol Label Switching (MPLS) access network for its mobile users that use
PPPoE on ATM. Finding Feature Information. Prerequisites for PPPoE on ATM. Restrictions for PPPoE on ATM
This feature module describes the PPP over Ethernet (PPPoE) on ATM feature. The feature provides the ability to connect a network of hosts over a simple bridging-access device to a remote access concentrator.
H-VPLS N-PE Redundancy for MPLS Access
The feature enables two network provider edge (N-PE) devices to provide failover services to a user provider edge (U-PE) device in a hierarchical virtual private LAN service (H-VPLS). Having redundant
Configuring the Circuit Emulation over Packet Shared Port Adapter
Configuring the Circuit Emulation over Packet Shared Port Adapter Release History This chapter provides information about configuring the Circuit Emulation over Packet (CEoP) shared port adapters (SPAs)
Local Template-Based ATM PVC Provisioning
The Local Template-Based ATM Provisioning feature enables ATM permanent virtual circuits (PVCs) to be provisioned automatically as needed from a local configuration. ATM PVC autoprovisioning can be configured
Asynchronous Transfer Mode Configuration Guide, Cisco IOS XE Everest (Cisco ASR 900 Series)
Asynchronous Transfer Mode Configuration Guide, Cisco IOS XE Everest 16.5.1 (Cisco ASR 900 Series) First Published: 2017-04-04 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose,
Classifying Network Traffic
Classifying Network Traffic Last Updated: December 8, 2011 Classifying network traffic allows you to organize traffic (that is, packets) into traffic classes or categories on the basis of whether the traffic
Extended NAS-Port-Type and NAS-Port Support
Extended NAS-Port-Type and NAS-Port Support Last Updated: April 18, 2012 The Extended NAS-Port-Type and NAS-Port Support feature allows you to identify what service type is taking place on specific ports
MPLS Point-to-Multipoint Traffic Engineering Support for Static Pseudowires
MPLS Point-to-Multipoint Traffic Engineering Support for Static Pseudowires The MPLS Point-to-Multipoint Traffic Engineering: Support for Static Pseudowires feature allows you to configure a point-to-multipoint
Configuring Routed Pseudowire and VPLS
Routed Pseudowire and VPLS feature routes Layer 3 traffic and Layer 2 frames for pseudowire connections between provider edge (PE) devices using Virtual Private LAN Services (VPLS) multipoint PE. Prerequisites
L2VPN Protocol-Based CLIs
The feature provides a set of processes and an improved infrastructure for developing and delivering Cisco IOS software on various Cisco platforms. This feature introduces new commands and modifies or
Local Template-Based ATM PVC Provisioning
Local Template-Based ATM PVC Provisioning Last Updated: August 29, 2012 The Local Template-Based ATM Provisioning feature enables ATM permanent virtual circuits (PVCs) to be provisioned automatically as
Multiprotocol Label Switching (MPLS) on Cisco Routers
Multiprotocol Label Switching (MPLS) on Cisco Routers This document describes commands for configuring and monitoring Multiprotocol Label Switching (MPLS) functionality on Cisco routers and switches. This
MPLS over GRE. Finding Feature Information. Prerequisites for MPLS VPN L3VPN over GRE
The feature provides a mechanism for tunneling Multiprotocol Label Switching (MPLS) packets over a non-mpls network. This feature utilizes MPLS over generic routing encapsulation (MPLSoGRE) to encapsulate
VPLS Autodiscovery: BGP Based
First Published: February 19, 2007 Last Updated: February 19, 2007 VPLS Autodiscovery enables each Virtual Private LAN Service (VPLS) provider edge (PE) router to discover which other PE routers are part
Classifying Network Traffic
Classifying Network Traffic Last Updated: December 2, 2011 Classifying network traffic allows you to organize traffic (that is, packets) into traffic classes or categories on the basis of whether the traffic
Using Multilink PPP over ATM Links
Using Multilink PPP over ATM Links First Published: May 2, 2005 Last Updated: March 21, 2011 This module contains conceptual information and configuration tasks for using Multilink PPP over ATM links.
MPLS AToM Overview. Documentation Specifics. Feature Overview
MPLS AToM Overview This document provides an introduction to MPLS AToM and includes the following sections: Documentation Specifics, page 14 Feature Overview, page 14 Benefits, page 26 What To Do Next,
Autosense for ATM PVCs and MUX SNAP Encapsulation
Autosense for ATM PVCs and MUX SNAP Encapsulation The PPPoA/PPPoE Autosense for ATM PVCs feature enables a router to distinguish between incoming PPP over ATM (PPPoA) and PPP over Ethernet (PPPoE) over
Configuring ATM SNMP Trap and OAM Enhancements
Configuring ATM SNMP Trap and OAM Enhancements The ATM SNMP Trap and OAM Enhancements feature provides the ability to send Simple Network Management Protocol (SNMP) notifications for ATM permanent virtual
QoS Tunnel Marking for GRE Tunnels
The feature introduces the capability to define and control the quality of service (QoS) for both incoming and outgoing customer traffic on the provider edge (PE) router in a service provider network.
PPP over Frame Relay
The feature allows a router to establish end-to-end Point-to-Point Protocol (PPP) sessions over Frame Relay. Finding Feature Information, page 1 Prerequisites for, page 1 Restrictions for, page 2 Information
Classifying and Marking MPLS EXP
The QoS EXP Matching feature allows you to classify and mark network traffic by modifying the Multiprotocol Label Switching (MPLS) experimental bits (EXP) field in IP packets. This module contains conceptual
Time Division Multiplexing Configuration Guide, Cisco IOS XE Everest (Cisco ASR 920 Series)
Time Division Multiplexing Configuration Guide, Cisco IOS XE Everest 16.6.1 (Cisco ASR 920 Series) First Published: 2017-03-23 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose,
VLANs over IP Unnumbered SubInterfaces
The VLANs over IP Unnumbered Subinterfaces feature allows IP unnumbered interface support to be configured on Ethernet VLAN subinterfaces. This feature also provides support for DHCP on VLAN subinterfaces.
MPLS AToM ATM AAL5 over MPLS
MPLS AToM ATM AAL5 over MPLS Feature History Release 12.0(10)ST 12.0(21)ST 12.0(22)S Modification This feature was introduced to support the Cisco 12000 Series router. This feature was updated to support
AToM Graceful Restart
AToM Graceful Restart Last Updated: November 29, 2011 The AToM Graceful Restart feature assists neighboring routers that have nonstop forwarding (NSF), stateful switchover (SSO) and graceful restart (GR)
Configuring Frame Relay-ATM Interworking
Configuring -ATM Interworking The -ATM Interworking features enable and ATM networks to exchange data, despite differing network protocols. There are two types of -ATM Interworking: FRF.5 -ATM Network
Configuring Pseudowire Group Switchover
Note Pseudowire Group Switchover configuration is not supported on the Cisco ASR 900 RSP3 module. Pseudowire Group Switchover Configuration, page 1 Pseudowire Group Switchover, page 2 Configuring Predictive
AToM Static Pseudowire Provisioning
AToM Static Pseudowire Provisioning First Published: February 19, 2007 Last Updated: February 19, 2007 The AToM Static Pseudowire Provisioning feature allows provisioning an Any Transport over Multiprotocol
Modular QoS CLI Three-Level Hierarchical Policer
Modular QoS CLI Three-Level Hierarchical Policer The Modular QoS CLI (MQC) Three-Level Hierarchical Policer extends the traffic policing functionality by allowing you to configure traffic policing at three
COMP9332 Network Routing & Switching
COMP9332 Network Routing & Switching Switching in IP Networks with MPLS http://www.cse.unsw.edu.au/~cs9332 1 Lecture Overview This lecture introduces the concept of switching, which allows faster processing
Packet Classification Using the Frame Relay DLCI Number
Packet Classification Using the Frame Relay DLCI Number The Packet Classification Using the Frame Relay DLCI Number feature allows customers to match and classify traffic on the basis of one or more Frame
Monitoring PPPoE Sessions with SNMP
The PPPoE Session Count Management Information Base feature provides the ability to use Simple Network Management Protocol (SNMP) to monitor in real time the number of PPP over Ethernet (PPPoE) sessions
QoS: Match on ATM CLP
QoS: Match on ATM CLP First Published: May 7, 2004 Last Updated: February 28, 2006 The QoS: Match on ATM CLP feature allows you to match and classify packets arriving at an interface on the basis of the
Software Configuration of ATM ISE Line Cards for Cisco Series Routers
Software Configuration of ATM ISE Line Cards for Cisco 12000 Series Routers This feature module describes the software configuration for the Cisco 4-Port ATM Internet Services Engine (ISE) line cards in
Configuring Virtual Private LAN Services
Virtual Private LAN Services (VPLS) enables enterprises to link together their Ethernet-based LANs from multiple sites via the infrastructure provided by their service provider. This module explains VPLS
Overview of Circuit Emulation
Circuit Emulation (CEM) is a technology that provides a protocol-independent transport over IP/MPLS networks. It s proprietary or legacy applications to be carried transparently to the destination, similar
ATM PVC Bundle Enhancement MPLS EXP-Based PVC Selection
ATM PVC Bundle Enhancement MPLS EXP-Based PVC Selection This document describes enhancements to the ATM virtual circuit (VC) bundle management feature, which allows you to configure multiple VCs that have
Configuring ATM Router Module Interfaces
24 CHAPTER This chapter describes steps required to configure the ATM router module on the Catalyst 8540 MSR, Catalyst 8510 MSR, and LightStream 1010 ATM switch routers, and the enhanced ATM router module
IP over IPv6 Tunnels. Information About IP over IPv6 Tunnels. GRE IPv4 Tunnel Support for IPv6 Traffic
IPv6 supports IP over IPv6 tunnels, which includes the following: Generic routing encapsulation (GRE) IPv4 tunnel support for IPv6 traffic IPv6 traffic can be carried over IPv4 GRE tunnels using the standard
Configuring Frame Relay-ATM Interworking
The Frame Relay-ATM Interworking features enable Frame Relay and ATM networks to exchange data, despite differing network protocols. There are two types of Frame Relay-ATM Interworking: FRF.5 Frame Relay-ATM
Using Flexible NetFlow Flow Sampling
This document contains information about and instructions for configuring sampling to reduce the CPU overhead of analyzing traffic with Flexible NetFlow. NetFlow is a Cisco technology that provides statistics
Using Flexible NetFlow Flow Sampling
This document contains information about and instructions for configuring sampling to reduce the CPU overhead of analyzing traffic with Flexible NetFlow. NetFlow is a Cisco technology that provides statistics
MPLS VPN Inter-AS with ASBRs Exchanging VPN-IPv4 Addresses
MPLS VPN Inter-AS with ASBRs Exchanging VPN-IPv4 Addresses The Multiprotocol Label Switching (MPLS) VPN Inter-AS with Autonomous System Boundary Routers (ASBRs) Exchanging VPN-IPv4 Addresses feature allows
NAT Routemaps Outside-to-Inside Support
The feature enables you to configure a NAT routemap configuration that allows IP sessions to be initiated from outside the network to inside the network. This module explains how to configure the feature.
Label Switching. The idea. Add a small label (sometimes called a tag ) on the front of a packet and route the packet based on the label. cs670.
Label Switching The idea Add a small label (sometimes called a tag ) on the front of a packet and route the packet based on the label label How it works IP IP payload When the packet reaches a router,
MPLS: Layer 2 VPNs, Configuration Guide, Cisco IOS Release 15S
First Published: November 08, 2011 Last Modified: March 29, 2013 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS
MPLS Basic MPLS Configuration Guide
First Published: July 24, 2013 Last Modified: July 24, 2013 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS
Configuring MPLS Transport Profile
CHAPTER 44 The Multiprotocol Label Switching (MPLS) Transport Profile (TP) enables you to create tunnels that provide the transport network service layer over which IP and MPLS traffic traverse. MPLS-TP
Providing Connectivity Using ATM Routed Bridge Encapsulation over PVCs
Providing Connectivity Using ATM Routed Bridge Encapsulation over PVCs First Published: May 2, 2005 Last Updated: November 24, 2010 The Providing Connectivity Using ATM Routed Bridge Encapsulation over
atm txbuff atm txbuff number no atm txbuff Syntax Description
atm txbuff atm txbuff To set the maximum number of transmit buffers for simultaneous packet fragmentation, use the atm txbuff interface configuration command. To restore the default value, use the no form
Cisco Discovery Protocol Version 2
Cisco Discovery Protocol (formerly known as CDP) is a Layer 2, media-independent, and network-independent protocol that runs on Cisco devices and enables networking applications to learn about directly
Asynchronous Transfer Mode Configuration Guide, Cisco IOS Release 15S
Asynchronous Transfer Mode Configuration Guide, Cisco IOS Release 15S Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000
Multiprotocol Label Switching (MPLS) on Cisco Routers
Multiprotocol Label Switching (MPLS) on Cisco Routers This document describes commands for configuring and monitoring Multiprotocol Label Switching (MPLS) functionality on Cisco routers and switches. This
MPLS VPN Explicit Null Label Support with BGP. BGP IPv4 Label Session
MPLS VPN Explicit Null Label Support with BGP IPv4 Label Session The MPLS VPN Explicit Null Label Support with BGP IPv4 Label Session feature provides a method to advertise explicit null in a Border Gateway
show tag-switching tdp discovery
show tag-switching tdp discovery show tag-switching tdp discovery To display the status of the LDP discovery process, use the show tag-switching tdp discovery command in privileged EXEC mode. This command
aaa authentication arap through atm sonet stm-1
aaa authentication arap through atm sonet stm-1 aaa authentication arap, page 3 abr, page 6 atm, page 8 atm aal aal3 4, page 10 atm abr rate-factor, page 12 atm address-registration, page 14 atm arp-server,
PPPoE Client DDR Idle-Timer
The feature supports the dial-on-demand routing (DDR) interesting traffic control list functionality of the dialer interface with a PPP over Ethernet (PPPoE) client, but also keeps original functionality
IEEE 802.1ah on Provider Backbone Bridges
IEEE 802.1ah on Provider Backbone Bridges First Published: November 25, 2009 Last Updated: February 8, 2011 The IEEE 802.1ah on Provider Backbone Bridges feature enables MAC-in-MAC tunneling on Ethernet
Configure Virtual LANs in Layer 2 VPNs
The Layer 2 Virtual Private Network (L2VPN) feature enables Service Providers (SPs) to provide L2 services to geographically disparate customer sites. A virtual local area network (VLAN) is a group of
Asynchronous Transfer Mode
ATM Asynchronous Transfer Mode CS420/520 Axel Krings Page 1 Protocol Architecture (diag) CS420/520 Axel Krings Page 2 1 Reference Model Planes User plane Provides for user information transfer Control
Using Multilink PPP over Frame Relay
Multilink PPP is a method used to reduce latency and jitter for real-time traffic. This module contains conceptual information and configuration tasks for using Multilink PPP over Frame Relay. Finding
Regulating Packet Flow on a Per-Interface Basis Using Generic Traffic Shaping
Regulating Packet Flow on a Per-Interface Basis Using Generic Traffic Shaping Packet flow on a network can be regulated using a traffic shaping mechanism. One such traffic shaping mechanism is a Cisco
Providing Connectivity Using ATM Routed Bridge Encapsulation over PVCs
Providing Connectivity Using ATM Routed Bridge Encapsulation over PVCs Last Updated: December 5, 2011 The Providing Connectivity Using ATM Routed Bridge Encapsulation over PVCs feature provides the functionality
Cisco Discovery Protocol Version 2
Cisco Discovery Protocol (formerly known as CDP) is a Layer 2, media-independent, and network-independent protocol that runs on Cisco devices and enables networking applications to learn about directly
QoS: Child Service Policy for Priority Class
QoS: Child Service Policy for Priority Class First Published: November, 2006 Last Updated: March 2, 2009 The QoS: Child Service Policy for Priority Class feature allows you to configure a child service
Configuring IP SLAs TCP Connect Operations
This module describes how to configure an IP Service Level Agreements (SLAs) TCP Connect operation to measure the response time taken to perform a TCP Connect operation between a Cisco router and devices
MPLS Transport Profile
Multiprotocol Label Switching (MPLS) Transport Profile (TP) enables you to create tunnels that provide the transport network service layer over which IP and MPLS traffic traverses. MPLS-TP tunnels enable
Configuring Ethernet Virtual Connections on the Cisco ASR 1000 Series Router
Configuring Ethernet Virtual Connections on the Cisco ASR 1000 Series Router Ethernet virtual circuit (EVC) infrastructure is a Layer 2 platform-independent bridging architecture that supports Ethernet
L2VPN Pseudowire Switching
L2VPN Pseudowire Switching First Published: April 20, 2005 Last Updated: February 19, 2007 This feature module explains how to configure L2VPN Pseudowire Switching, which extends layer 2 virtual private
Applying QoS Features Using the MQC
QoS: Modular QoS Command-Line Interface Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 900 Series) First Published: November 30, 2012 Last Modified: March 31, 2014 This chapter discusses the Modular
8-Port OC-3 STM-1 ATM Line Card for Cisco Series Internet Routers
8-Port OC-3 STM-1 ATM Line Card for Cisco 12000 Series Internet Routers Feature History Release 12.0(22)S 12.0(23)S Modification This feature was introduced on Cisco 12000 series Internet Routers. Software
Configurable Number of Simultaneous Packets per Flow
Configurable Number of Simultaneous Packets per Flow In zone-based policy firewalls, the number of simultaneous packets per flow is restricted to 25 and packets that exceed the limit are dropped. The dropping
BROADBAND AND HIGH SPEED NETWORKS
BROADBAND AND HIGH SPEED NETWORKS INTRODUCTION ATM stands for Asynchronous Transfer Mode ATM is a flexible high bandwidth, low delay network technology that is: Capable of handling voice, video and data
Manually Configured IPv6 over IPv4 Tunnels
This feature provides support for manually configured IPv6 over IPv4 tunnels. A manually configured tunnel is equivalent to a permanent link between two IPv6 domains over an IPv4 backbone. Finding Feature
Layer 2 Tunneling Protocol Version 3
Layer 2 Tunneling Protocol Version 3 First Published: May 6, 2010 Last Updated: September 02, 2010 The Layer 2 Tunneling Protocol Version 3 (L2TPv3) feature expands Cisco support of Layer 2 Virtual Private
Quality of Service for VPNs
The QoS for VPNs feature provides a solution for making Cisco IOS QoS services operate in conjunction with tunneling and encryption on an interface. Cisco IOS software can classify packets and apply the
Configuring the Cisco MWR 2941-DC Router Using the CLI
CHAPTER 4 Configuring the Cisco MWR 2941-DC Router Using the CLI This chapter describes how to use the Cisco IOS software command-line interface (CLI) to configure the Cisco MWR 2941-DC Mobile Wireless
Configuring Traffic Mirroring
This module describes the configuration of the traffic mirroring feature. Traffic mirroring is sometimes called port mirroring, or switched port analyzer (SPAN). Feature History for Traffic Mirroring Release
Configuring Traffic Mirroring
This module describes the configuration of the traffic mirroring feature. Traffic mirroring is sometimes called port mirroring, or switched port analyzer (SPAN). Feature History for Traffic Mirroring Release
QoS: Time-Based Thresholds for WRED and Queue Limit
QoS: Time-Based Thresholds for WRED and Queue Limit The QoS: Time-Based Thresholds for WRED and Queue Limit feature allows you to specify the Weighted Random Early Detection (WRED) minimum and maximum
Multi-VRF Support. Finding Feature Information. Prerequisites for Multi-VRF Support
The feature allows you to configure and maintain more than one instance of a routing and forwarding table within the same customer edge (CE) device. Finding Feature Information, page 1 Prerequisites for,
Configuring ATM QoS or Shaping
Configuring ATM QoS or Shaping M7i, M1i, M4e, M12, and M32 routers with 4-port channelized OC3/STM1 Circuit Emulation PICs and 12-port T1/E1 Circuit Emulation PICs support ATM pseudowire service with QoS
Ethernet Local Management Interface
This chapter provides conceptual and configuration information of the protocol., on page 1 E-LMI Communication, on page 1 E-LMI Operation, on page 2 Supported Functions, on page 3 Limitations, on page
Overview of Circuit Emulation
Circuit Emulation (CEM) is a technology that provides a protocol-independent transport over IP/MPLS networks. It s proprietary or legacy applications to be carried transparently to the destination, similar
MPLS VPN Half-Duplex VRF
The feature provides scalable hub-and-spoke connectivity for subscribers of an Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) service. This feature addresses the limitations of hub-and-spoke
Fine-Grain NBAR for Selective Applications
By default NBAR operates in the fine-grain mode, offering NBAR's full application recognition capabilities. Used when per-packet reporting is required, fine-grain mode offers a troubleshooting advantage.