Configuring Mpls Te Frr; Enabling Frr; Configuring A Bypass Tunnel On The Plr - HP FlexNetwork 10500 Series Configuration Manual

Step
5. Specify a path for the backup
CRLSP and set the
preference of the path.

Configuring MPLS TE FRR

MPLS TE FRR provides temporary link or node protection on a CRLSP. When you configure FRR,
follow these restrictions and guidelines:
•
Do not configure both FRR and RSVP authentication on the same interface.
•
Only MPLS TE tunnels established through RSVP-TE support FRR.

Enabling FRR

Perform this task on the ingress node of a primary CRLSP.
To enable FRR:
Step
1. Enter system view.
2. Enter tunnel interface view of
the primary CRLSP.
3. Enable FRR.

Configuring a bypass tunnel on the PLR

Overview
To configure FRR, you must configure bypass tunnels for primary CRLSPs on the PLR by using the
following methods:
•
Manually configuring a bypass tunnel on the PLR—Create an MPLS TE tunnel on the PLR,
and configure the tunnel as a bypass tunnel for a primary CRLSP. You need to specify the
bandwidth and CT that the bypass tunnel can protect, and bind the bypass tunnel to the output
interface of the primary CRLSP.
You can configure a maximum of three bypass tunnels for a primary CRLSP.
•
Configuring the PLR to set up bypass tunnels automatically—Configure the automatic
bypass tunnel setup feature (also referred to as the auto FRR feature) on the PLR. The PLR
automatically sets up two bypass tunnels for each of its primary CRLSPs: one in link protection
mode and the other in node protection mode. Automatically created bypass tunnels can be
used to protect any type of CT, but they cannot provide bandwidth protection.
A primary tunnel can have both manually configured and automatically created bypass tunnels. The
PLR will select one bypass tunnel to protect the primary CRLSP. The selected bypass tunnel is
bound to the primary CRLSP.
Manually created bypass tunnels take precedence over automatically created bypass tunnels. An
automatically created bypass tunnel in node protection mode takes precedence over an
automatically created bypass tunnel in link protection mode. Among manually created bypass
Command
mpls te backup-path preference
value { dynamic | explicit-path
path-name } [ no-cspf ]
Command
system-view
interface tunnel tunnel-number
[ mode mpls-te ]
mpls te fast-reroute
[ bandwidth ]
98
Remarks
By default, MPLS TE uses the
dynamically calculated path to set
up the backup CRLSP.
Remarks
N/A
N/A
By default, FRR is disabled.
If you specify the bandwidth
keyword, the primary CRLSP
must have bandwidth protection.