- 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 Common Configuration for Layer 2 VPNs and VPLS
- play_arrow Overview
- play_arrow Layer 2 VPNs Configuration Overview
- play_arrow Configuring Layer 2 Interfaces
- play_arrow Configuring Path Selection for Layer 2 VPNs and VPLS
- play_arrow Creating Backup Connections with Redundant Pseudowires
- play_arrow Configuring Class of Service for Layer 2 VPNs
- play_arrow Monitoring Layer 2 VPNs
- Configuring BFD for Layer 2 VPN and VPLS
- BFD Support for VCCV for Layer 2 VPNs, Layer 2 Circuits, and VPLS
- Configuring BFD for VCCV for Layer 2 VPNs, Layer 2 Circuits, and VPLS
- Connectivity Fault Management Support for EVPN and Layer 2 VPN Overview
- Configure a MEP to Generate and Respond to CFM Protocol Messages
-
- 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 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
Configuring VPLS Fast Reroute Priority
When a path is rerouted after a link failure by using the MPLS
fast reroute feature, the router repairs the affected next hops by
switching them from the active label switched path (LSP) to the standby
LSP. To specify the order in which the router repairs next hops and
restores traffic convergence for VPLS routing instances after a fast
reroute event, you can use the fast-reroute-priority
statement
to configure high
, medium
, or low
fast reroute priority for a VPLS routing instance. By default, the
fast reroute priority for a VPLS routing instance is low
.
The router repairs next hops and restores known unicast, unknown unicast, broadcast, and multicast traffic for VPLS routing instances in the following order, based on the fast reroute priority configuration:
The router repairs next hops for high-priority VPLS routing instances.
The router repairs next hops for medium-priority VPLS routing instances.
The router repairs next hops for low-priority VPLS routing instances.
Because the router repairs next hops for VPLS routing instances
configured with high
fast reroute priority first, the traffic
traversing high-priority VPLS instances is restored faster than the
traffic for VPLS instances configured with medium
or low
fast reroute priority. The ability to prioritize specific
VPLS routing instances for faster convergence and traffic restoration
enables service providers to offer differentiated service levels to
their customers.
Within a particular fast reroute priority level (high
, medium
, or low
), the router follows no particular
order for traffic restoration of VPLS routing instances.
VPLS fast reroute priority is not supported on EX Series switches.
To configure high
, medium
, or low
fast reroute priority for a VPLS routing instance, include the fast-reroute-priority
statement:
fast-reroute-priority (high | medium | low);
You can include this statement at the following hierarchy levels:
[edit logical-systems logical-system-name routing-instances routing-instance-name forwarding-options]
[edit routing-instances routing-instance-name forwarding-options]
You can configure fast reroute priority only for routing instances
with the instance-type
set to vpls
. If you attempt
to configure fast reroute priority for a routing instance with an instance-type
other than vpls
, the router displays
a warning message and the configuration fails.
The following example snippet shows configuration of high
fast reroute priority for a VPLS routing instance named test-vpls
:
test-vpls { instance-type vpls; forwarding-options { fast-reroute-priority high; } }
To display the fast reroute priority setting configured for
a VPLS routing instance, use the show route instance detail
operational command. For information about using this command, see
the CLI Explorer.