Configuring cr-lsp backup, Configuration prerequisites, Configuration procedure – H3C Technologies H3C S10500 Series Switches User Manual
Page 126: Configuring frr
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To do…
Use the command...
Remarks
Enter system view
system-view
––
Enter MPLS TE tunnel interface view interface tunnel tunnel-number ––
Configure the traffic flow type of
the TE tunnel
mpls te vpn-binding { acl
acl-number | vpn-instance
vpn-instance-name }
Optional
Traffic flow types of TE tunnels are
not restricted by default.
Submit current tunnel configuration mpls te commit
Required
Configuring CR-LSP backup
CR-LSP backup provides end-to-end path protection to protect the entire LSP.
Configuration prerequisites
Before you configure CR-LSP backup, complete the following tasks:
•
Configure basic MPLS
•
Configure basic MPLS TE
•
Configure MPLS TE tunnels
Configuration procedure
Follow these steps to configure CR-LSP backup:
To do…
Use the command...
Remarks
Enter system view of the ingress
node
system-view
––
Enter MPLS TE tunnel interface view interface tunnel tunnel-number ––
Enable backup for the current
tunnel and configure the backup
mode
mpls te backup { hot-standby |
ordinary }
Required
Disabled by default.
Submit current tunnel configuration mpls te commit
Required
NOTE:
Configure CR-LSP backup mode at the ingress node of a tunnel. The system automatically selects the
primary LSP and backup LSP. You do not need to configure them.
Configuring FRR
NOTE:
Do not configure both FRR and RSVP authentication on the same interface.
As mentioned earlier, Fast Reroute (FRR) provides quick but temporary per-link or per-node local
protection on an LSP.