Command Reference Guide

3Com Router 5000 Family and Router 6000 Family fr pvc-protect ● 163
Command Reference
Note that:
■ With a PVC in a PVC group configured to be protected in individual mode, the
whole PVC group becomes unavailable when the PVC goes down. Even if the PVC
is configured with a standby PVC, the standby PVC does not take over.
■ With several PVCs in a PVC group configured to be protected in group mode,
when a protected PVC goes down, if its standby PVC (if any) is also a member of
the protected object, the standby PVC takes over for the failed PVC. Otherwise,
the standby PVC cannot take over and the whole PVC group becomes unavailable.
When a PVC protected in individual mode goes down, the whole PVC group becomes
unavailable. When all PVCs in a protected group go down, even if packets of any
priority levels are configured with standby PVCs that are active at the time, the PVC
group still becomes unavailable.