96
194B
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.
interface
interface-type
interface-number
On the PLR, enter the view of
the interface connected to
the protected node.
On the protected node, enter
the view of the interface
connected to the PLR.
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
"
741H
Configuring RSVP
."
195B
Setting 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 optimal bypass tunnel because, for example, the reservable bandwidth changes.
Therefore, MPLS TE needs to poll the bypass tunnels periodically to update the optimal bypass
tunnel.
Perform this task on the PLR to set the interval for selecting an optimal bypass tunnel:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter MPLS TE view.
mpls te
N/A
3.
Set the interval for selecting
an optimal bypass tunnel.
fast-reroute timer interval
By default, the interval is 300
seconds.
65B
Enabling SNMP notifications for MPLS TE
This feature enables generating SNMP notifications for MPLS TE upon MPLS TE state changes, as
defined in RFC 3812. For MPLS TE event notifications to be sent correctly, you must also configure
SNMP on the device. For more information about SNMP configuration, see the network
management and monitoring configuration guide for the device.
To enable SNMP notifications for MPLS TE: