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

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hello lost
Use hello lost to configure the maximum number of consecutive lost or erroneous hellos.
Use undo hello lost to restore the default.
Syntax
hello lost times
undo hello lost
Default
The maximum number of consecutive lost or erroneous hellos is 4.
Views
RSVP view
Predefined user roles
network-admin
Parameters
times: Specifies the maximum number of consecutive lost or erroneous hellos, in the range of 3 to 10.
Usage guidelines
When a device sends a hello to a neighbor but the device does not receive any reply within an interval,
the hello is lost. The device considers that the neighbor fails when it does not receive hellos or receives
erroneous hellos from the neighbor in three consecutive hello intervals.
If RSVP GR is enabled, the local device acts as a GR helper to help the neighbor to perform GR. If RSVP
GR is disabled but FRR is enabled on the local device, it performs an FRR.
If the maximum number is too big, neighbor failures cannot be promptly detected. If the maximum
number is too small, an operating neighbor might be regarded failed.
This command takes effect only after the RSVP hello extension function has been enabled by using the
rsvp hello enable command.
Examples
# Set the maximum number of consecutive lost or erroneous hellos to 6.
<Sysname> system-view
[Sysname] rsvp
[Sysname-rsvp] hello lost 6
Related commands
• hello interval
• rsvp hello enable
keep-multiplier
Use keep-multiplier to configure the PSB and RSB timeout multiplier.
Use undo keep-multiplier to restore the default.
Syntax
keep-multiplier number