H3C Technologies H3C S6800 Series Switches - Manual (Page 95)

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Step Command Remarks
6. (Optional.) Configure a
removal timer for unused
bypass tunnels.
timers removal unused seconds
By default, a bypass tunnel is
removed after it is unused for 3600
seconds.
7. (Optional.) Return to system
view.
quit N/A
8. (Optional.) Enter interface
view. interface interface-type
interface-number
N/A
9. (Optional.) Disable the auto
FRR function on the interface. mpls te auto-tunnel backup disable
By default, the auto FRR function is
enabled on all RSVP-enabled
interfaces after it is enabled
globally.
Execution of this command deletes
all existing bypass tunnels
automatically created on the
interface for MPLS TE auto FRR.
Configuring node fault detection
Perform this task to configure the RSVP hello mechanism or BFD on the PLR and the protected node to
detect the node faults caused by signaling protocol faults. FRR does not need to use the RSVP hello
mechanism or BFD to detect the node faults caused by the link faults between the PLR and the protected
node.
You do not need to perform this task for FRR link protection.
To configure node fault detection:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view of the
connecting interface between
the PLR and the protected
node.
interface interface-type
interface-number
N/A
3. Configure node fault
detection.
• (Method 1) Enable RSVP hello
extension on the interface:
rsvp hello enable
• (Method 2) Enable BFD on the
interface:
rsvp bfd enable
By default, RSVP hello
extension is disabled, and
BFD is not configured.
For more information about
the rsvp hello enable
command and the rsvp bfd
enable command, see
"
Configuring RSVP ."
Configuring the optimal bypass tunnel selection interval
If you have specified multiple bypass tunnels for a primary CRLSP, MPLS TE selects an optimal bypass
tunnel to protect the primary CRLSP. Sometimes, a bypass tunnel might become better than the current