close
keyboard_arrow_left
Table of Contents
- play_arrow Common Configuration for All VPNs
- play_arrow VPNs Overview
- play_arrow Assigning Routing Instances to VPNs
- play_arrow Distributing Routes in VPNs
- play_arrow Distributing VPN Routes with Target Filtering
- Configuring BGP Route Target Filtering for VPNs
- Example: BGP Route Target Filtering for VPNs
- Example: Configuring BGP Route Target Filtering for VPNs
- Configuring Static Route Target Filtering for VPNs
- Understanding Proxy BGP Route Target Filtering for VPNs
- Example: Configuring Proxy BGP Route Target Filtering for VPNs
- Example: Configuring an Export Policy for BGP Route Target Filtering for VPNs
- Reducing Network Resource Use with Static Route Target Filtering for VPNs
- play_arrow Configuring Forwarding Options for VPNs
- play_arrow Configuring Graceful Restart for VPNs
- play_arrow Configuring Class of Service for VPNs
- play_arrow Pinging VPNs
-
- play_arrow Configuring Group VPNs
- play_arrow Configuring Public Key Infrastructure
- play_arrow Configuring Digital Certificate Validation
- play_arrow Configuring a Device for Certificate Chains
- play_arrow Managing Certificate Revocation
-
- play_arrow Configuring Layer 2 Circuits
- play_arrow Overview
- play_arrow Layer 2 Circuits Configuration Overview
- play_arrow Configuring Class of Service with Layer 2 Circuits
- play_arrow Configuring Pseudowire Redundancy for Layer 2 Circuits
- play_arrow Configuring Load Balancing for Layer 2 Circuits
- play_arrow Configuring Protection Features for Layer 2 Circuits
- Egress Protection LSPs for Layer 2 Circuits
- Configuring Egress Protection Service Mirroring for BGP Signaled Layer 2 Services
- Example: Configuring an Egress Protection LSP for a Layer 2 Circuit
- Example: Configuring Layer 2 Circuit Protect Interfaces
- Example: Configuring Layer 2 Circuit Switching Protection
- play_arrow Monitoring Layer 2 Circuits with BFD
- play_arrow Troubleshooting Layer 2 Circuits
-
- play_arrow Configuring VPWS VPNs
- play_arrow Overview
- play_arrow Configuring VPWS VPNs
- Understanding FEC 129 BGP Autodiscovery for VPWS
- Example: Configuring FEC 129 BGP Autodiscovery for VPWS
- Example: Configuring MPLS Egress Protection Service Mirroring for BGP Signaled Layer 2 Services
- Understanding Multisegment Pseudowire for FEC 129
- Example: Configuring a Multisegment Pseudowire
- Configuring the FAT Flow Label for FEC 128 VPWS Pseudowires for Load-Balancing MPLS Traffic
- Configuring the FAT Flow Label for FEC 129 VPWS Pseudowires for Load-Balancing MPLS Traffic
-
- play_arrow Configuring VPLS
- play_arrow Overview
- play_arrow VPLS Configuration Overview
- play_arrow Configuring Signaling Protocols for VPLS
- VPLS Routing and Virtual Ports
- BGP Signaling for VPLS PE Routers Overview
- Control Word for BGP VPLS Overview
- Configuring a Control Word for BGP VPLS
- BGP Route Reflectors for VPLS
- Interoperability Between BGP Signaling and LDP Signaling in VPLS
- Configuring Interoperability Between BGP Signaling and LDP Signaling in VPLS
- Example: VPLS Configuration (BGP Signaling)
- Example: VPLS Configuration (BGP and LDP Interworking)
- play_arrow Assigning Routing Instances to VPLS
- Configuring VPLS Routing Instances
- Configuring a VPLS Routing Instance
- Support of Inner VLAN List and Inner VLAN Range for Qualified BUM Pruning on a Dual-Tagged Interface for a VPLS Routing Instance Overview
- Configuring Qualified BUM Pruning for a Dual-Tagged Interface with Inner VLAN list and InnerVLAN range for a VPLS Routing Instance
- Configuring a Layer 2 Control Protocol Routing Instance
- PE Router Mesh Groups for VPLS Routing Instances
- Configuring VPLS Fast Reroute Priority
- Specifying the VT Interfaces Used by VPLS Routing Instances
- Understanding PIM Snooping for VPLS
- Example: Configuring PIM Snooping for VPLS
- VPLS Label Blocks Operation
- Configuring the Label Block Size for VPLS
- Example: Building a VPLS From Router 1 to Router 3 to Validate Label Blocks
- play_arrow Associating Interfaces with VPLS
- play_arrow Configuring Pseudowires
- Configuring Static Pseudowires for VPLS
- VPLS Path Selection Process for PE Routers
- BGP and VPLS Path Selection for Multihomed PE Routers
- Dynamic Profiles for VPLS Pseudowires
- Use Cases for Dynamic Profiles for VPLS Pseudowires
- Example: Configuring VPLS Pseudowires with Dynamic Profiles—Basic Solutions
- Example: Configuring VPLS Pseudowires with Dynamic Profiles—Complex Solutions
- Configuring the FAT Flow Label for FEC 128 VPLS Pseudowires for Load-Balancing MPLS Traffic
- Configuring the FAT Flow Label for FEC 129 VPLS Pseudowires for Load-Balancing MPLS Traffic
- Example: Configuring H-VPLS BGP-Based and LDP-Based VPLS Interoperation
- Example: Configuring BGP-Based H-VPLS Using Different Mesh Groups for Each Spoke Router
- Example: Configuring LDP-Based H-VPLS Using a Single Mesh Group to Terminate the Layer 2 Circuits
- Example: Configuring H-VPLS With VLANs
- Example: Configuring H-VPLS Without VLANs
- Configure Hot-Standby Pseudowire Redundancy in H-VPLS
- Sample Scenario of H-VPLS on ACX Series Routers for IPTV Services
- play_arrow Configuring Multihoming
- VPLS Multihoming Overview
- Advantages of Using Autodiscovery for VPLS Multihoming
- Example: Configuring FEC 129 BGP Autodiscovery for VPWS
- Example: Configuring BGP Autodiscovery for LDP VPLS
- Example: Configuring BGP Autodiscovery for LDP VPLS with User-Defined Mesh Groups
- VPLS Multihoming Reactions to Network Failures
- Configuring VPLS Multihoming
- Example: VPLS Multihoming, Improved Convergence Time
- Example: Configuring VPLS Multihoming (FEC 129)
- Next-Generation VPLS for Multicast with Multihoming Overview
- Example: Next-Generation VPLS for Multicast with Multihoming
- play_arrow Configuring Point-to-Multipoint LSPs
- play_arrow Configuring Inter-AS VPLS and IRB VPLS
- play_arrow Configuring Load Balancing and Performance
- Configuring VPLS Load Balancing
- Configuring VPLS Load Balancing Based on IP and MPLS Information
- Configuring VPLS Load Balancing on MX Series 5G Universal Routing Platforms
- Example: Configuring Loop Prevention in VPLS Network Due to MAC Moves
- Understanding MAC Pinning
- Configuring MAC Pinning on Access Interfaces for Bridge Domains
- Configuring MAC Pinning on Trunk Interfaces for Bridge Domains
- Configuring MAC Pinning on Access Interfaces for Bridge Domains in a Virtual Switch
- Configuring MAC Pinning on Trunk Interfaces for Bridge Domains in a Virtual Switch
- Configuring MAC Pinning for All Pseudowires of the VPLS Routing Instance (LDP and BGP)
- Configuring MAC Pinning on VPLS CE Interface
- Configuring MAC Pinning for All Pseudowires of the VPLS Site in a BGP-Based VPLS Routing Instance
- Configuring MAC Pinning on All Pseudowires of a Specific Neighbor of LDP-Based VPLS Routing Instance
- Configuring MAC Pinning on Access Interfaces for Logical Systems
- Configuring MAC Pinning on Trunk Interfaces for Logical Systems
- Configuring MAC Pinning on Access Interfaces in Virtual Switches for Logical Systems
- Configuring MAC Pinning on Trunk Interfaces in Virtual Switches for Logical Systems
- Configuring MAC Pinning for All Pseudowires of the VPLS Routing Instance (LDP and BGP) for Logical Systems
- Configuring MAC Pinning on VPLS CE Interface for Logical Systems
- Configuring MAC Pinning for All Pseudowires of the VPLS Site in a BGP-Based VPLS Routing Instance for Logical Systems
- Configuring MAC Pinning on All Pseudowires of a Specific Neighbor of LDP-Based VPLS Routing Instance for Logical Systems
- Example: Prevention of Loops in Bridge Domains by Enabling the MAC Pinnning Feature on Access Interfaces
- Example: Prevention of Loops in Bridge Domains by Enabling the MAC Pinnning Feature on Trunk Interfaces
- Configuring Improved VPLS MAC Address Learning on T4000 Routers with Type 5 FPCs
- Understanding Qualified MAC Learning
- Qualified Learning VPLS Routing Instance Behavior
- Configuring Qualified MAC Learning
- play_arrow Configuring Class of Service and Firewall Filters in VPLS
- play_arrow Monitoring and Tracing VPLS
-
- play_arrow Connecting Layer 2 VPNs and Circuits to Other VPNs
- play_arrow Connecting Layer 2 VPNs to Other VPNs
- play_arrow Connecting Layer 2 Circuits to Other VPNs
- Using the Layer 2 Interworking Interface to Interconnect a Layer 2 Circuit to a Layer 2 VPN
- Applications for Interconnecting a Layer 2 Circuit with a Layer 2 Circuit
- Example: Interconnecting a Layer 2 Circuit with a Layer 2 VPN
- Example: Interconnecting a Layer 2 Circuit with a Layer 2 Circuit
- Applications for Interconnecting a Layer 2 Circuit with a Layer 3 VPN
- Example: Interconnecting a Layer 2 Circuit with a Layer 3 VPN
-
- play_arrow Configuration Statements and Operational Commands
list Table of Contents
Disabling the Control Word for Layer 2 VPNs
date_range
23-Nov-23
A 4-byte control word provides support for the emulated VC encapsulation for Layer 2 VPNs. This control word is added between the Layer 2 protocol data unit (PDU) being transported and the VC label that is used for demultiplexing. Various networking formats (ATM, Frame Relay, Ethernet, and so on) use the control word in a variety of ways.
On networks with equipment that does not support the control
word, you can disable it by including the no-control-word statement:
content_copy zoom_out_map
You can include this statement at the following hierarchy levels:
[edit routing-instances routing-instance-name protocols l2vpn][edit logical-systems logical-system-name routing-instances routing-instance-name protocols l2vpn]
For more information about configuring the control word, see Configuring the Control Word for Layer 2 Circuits and the Layer 2 Circuits User Guide.
Note:
Use the no-control-word statement to disable
the control word when the topology uses generic routing encapsulation
(GRE) as the connection mechanism between PEs, and one of the PEs
is an M Series router.
