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Configuring rsvp gr, Enabling bfd for rsvp – H3C Technologies H3C S12500-X Series Switches User Manual

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Step Command

Remarks

4.

Enable challenge-response
handshake globally.

authentication challenge

By default, the challenge-response
handshake function is disabled.

5.

Configure the global idle
timeout for RSVP security

associations.

authentication lifetime life-time

By default, the idle timeout is 1800
seconds (30 minutes).

6.

Specify the global RSVP
authentication window

size—the maximum number
of authenticated RSVP

messages that can be

received out of sequence.

authentication window-size
number

By default, only one authenticated
RSVP message can be received out

of sequence.

Configuring RSVP GR

RSVP GR depends on the RSVP hello extension function. When configuring RSVP GR, you must enable

RSVP hello extension.
Perform this task on GR-capable devices.
To configure RSVP GR:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter RSVP view.

rsvp

N/A

3.

Enable GR for RSVP.

graceful-restart enable

By default, RSVP GR is disabled.

4.

Return to system view.

quit

N/A

5.

Enter interface view.

interface interface-type
interface-number

N/A

6.

Enable RSVP hello extension. rsvp hello enable

By default, RSVP hello extension is
disabled.

Enabling BFD for RSVP

If a link fails, MPLS TE tunnels over the link fail to forward packets. MPLS TE cannot quickly detect a link

failure. To address this issue, you can enable BFD for RSVP so MPLS TE can quickly switch data from the

primary path to the backup path upon a link failure.
To enable BFD for RSVP:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter interface view.

interface interface-type
interface-number

You must enable RSVP on the
interface.

3.

Enable BFD for the RSVP

neighbor on the interface.

rsvp bfd enable

By default, RSVP BFD is disabled.