Beta Draft Confidential
10-341/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring ATM PVCs
About Redirect PVCs
About Redirect PVCs
This section describes how to configure redirect PVCs for ATM UNI and NNI logical
ports. Redirecting PVCs provides PVC backup recovery in the event of DTE state
changes.
Redirecting PVCs enables you to configure a PVC with the following three endpoints:
•Pivot
• Primary
• Secondary
Each endpoint has its own port and VPI/VCI combination. Typically, traffic follows
the path between the pivot and primary endpoints. When the primary endpoint goes
down, a redirection (or switchover) of PVC traffic is triggered, either manually or
automatically. The traffic then follows a path between the pivot and secondary
endpoints. Redirecting PVCs takes place only if the called endpoint is down.
Redirecting PVCs does not take place if the PVC segment within the Lucent network
becomes inactive (for example, if there is no route to the primary endpoint, or the
trunk is down).
Note – You cannot configure PVC redirection on a Point-to-Point Protocol (PPP)
logical port or a GX 550 ES.
The product formerly called the GX 250 Multiservice Extender is now referred to as
the GX 550 ES (Extender Shelf) in the Navis EMS-CBGX interface.
The NMS may display features that are not available in this release. For a complete list
and explanation of each of the features that are supported in this release, see the
Navis EMS-CBGX SRN.
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