Command Reference Guide

3Com Router 5000 Family and Router 6000 Family fr bump ● 135
Command Reference
fr bump
Purpose Use the fr bump command to configure the standby PVC that will take over when a
specified PVC goes down.
Use the undo fr bump command to remove the backup configuration.
Syntax fr bump dlci grade
undo fr bump dlci
Parameters dlci
DLCI number of the PVC to be backed up. Valid values
are 16 to 1007.
grade
Priority level of the packets assigned to the standby
PVC that will take over for the specified PVC when it
fails. When the Precedence identifier in IP packet or
the EXP field in MPLS packet is used to differentiate
packets. Valid values for this argument are 0 to 7.
When the DSCP identifier in IP packet is used to
differentiate packets, Valid values for this argument are
0 to 63.
Default By default, a PVC has no standby PVC configured.
Example For the PVC group named 123, configure the PVC carrying packets of priority level 3
to take over when PVC 200 goes down.
[3Com] interface serial1/0/0
[3Com-Serial1/0/0] fr pvc-group 123
[3Com-fr-pvc-group-Serial1/0/0-123] fr bump 200 3
View This command can be used in the following views:
■ FR Pvc-Group view
Description The standby PVC configured using this command must be in the same PVC group as
the PVC to be backed up.
When a PVC goes down, if there is no standby PVC configured for it, the PVC
carrying packets of default priority levels takes over for it. If there is no PVC
configured to carry packets of default priority levels, the whole PVC group becomes
unavailable.