R0106-HP MSR Router Series MPLS Command Reference(V7)

181
The local device can act as a GR helper for the RSVP neighbor connected to an interface only after the
RSVP GR function and the RSVP hello extension function are enabled on that interface by using the
graceful-restart enable command and the rsvp hello enable command, respectively.
Examples
# Enable RSVP GR globally.
<Sysname> system-view
[Sysname] rsvp
[Sysname-rsvp] graceful-restart enable
Related commands
rsvp hello enable
hello interval
Use hello interval to configure the interval for sending hello requests.
Use undo hello interval to restore the default.
Syntax
hello interval interval
undo hello interval
Default
Hello request messages are sent at an interval of 5 seconds.
Views
RSVP view
Predefined user roles
network-admin
Parameters
interval: Specifies the interval at which RSVP sends hello requests, in the range of 1 to 60, in seconds.
Usage guidelines
If no hello request is received from a neighbor within the hello interval, the device sends a hello request
to the neighbor. If the device receives a hello request from a neighbor within the interval, it immediately
replies the neighbor with a hello ACK message.
The hello interval command takes effect only on interfaces that have the RSVP hello extension function
enabled (by using the rsvp hello enable command).
Examples
# Set the interval for sending hello request messages to 10 seconds.
<Sysname> system-view
[Sysname] rsvp
[Sysname-rsvp] hello interval 10
Related commands
• hello lost
• rsvp hello enable