HP MSR2000/3000/4000 Router Series MPLS Command Reference

64
Parameters
interval: Specifies the interval for selecting an optimal bypass tunnel, in the range of 0 to 604800
seconds. If you set the interval to 0 seconds, RSVP does not periodically select an optimal bypass tunnel.
Usage guidelines
If you have specified multiple bypass tunnels for a primary CRLSP, RSVP 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, RSVP needs to poll
the bypass tunnels periodically to update the optimal bypass tunnel.
NOTE:
A
fter traffic is switched from the primary CRLSP to a bypass tunnel, RSVP no lon
g
er periodically selec
t
s
optimal bypass tunnels for the primary CRLSP.
Examples
# Set the optimal bypass tunnel selection interval to 120 seconds.
<Sysname> system-view
[Sysname] rsvp
[Sysname-rsvp] fast-reroute timer 120
link-management periodic-flooding timer
Use link-management periodic-flooding timer to configure the interval at which IGP floods TE
information.
Use undo link-management periodic-flooding timer to restore the default.
Syntax
link-management periodic-flooding timer interval
undo link-management periodic-flooding timer
Default
The IGP floods TE information every 180 seconds.
Views
MPLS TE view
Predefined user roles
network-admin
Parameters
interval: Specifies the interval at which IGP floods TE information, in the range of 0 to 3600, in seconds.
Usage guidelines
When the reservable bandwidth of a link changes, IGP floods the link TE information to notify network
devices of the change. You can use the mpls te bandwidth change thresholds command to configure IGP
to flood only significant bandwidth changes of a link to prevent excessive IGP flooding. The bandwidth
changes that cannot trigger immediate flooding are flooded at the interval configured by the
link-management periodic-flooding timer command.