beautypg.com

Configuring cr-lsp backup, Configuration prerequisites, Configuration procedure – H3C Technologies H3C S10500 Series Switches User Manual

Page 126: Configuring frr

background image

115

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.