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Troubleshooting PVC Problems
This document describes how to troubleshoot permanent virtual circuit (PVC) problems in a Cisco IGX 8400 or BPX 8600 series switch running 9.1 Switch Software or later.
17 Apr 2009
This sample configuration solves a communication problem that occurs on a permanent virtual circuit (PVC). The network connectivity is lost (no traffic), but the PVC remains up on the end devices. The result is that routing entries that point to the PVC remain in the routing...
23 Oct 2005
This document provides an overview of the address resolution and packet encapsulation methods used on ATM networks. It also provides troubleshooting steps to use if you are unable to ping across an ATM cloud when enabling a new permanent virtual circuit (PVC).
15 Nov 2007
When you use Per-VC (distributed) Weighted Random Early Discard (Per-VC (D)WRED), you can perform an intelligent packet discard when congestion occurs. However, this solution limits you to the use of one Permanent Virtual Circuit (PVC) between two end devices. As a result, the different service...
05 Jun 2005
If a communication problem occurs on a PVC (no traffic going one way or the other), the permanent virtual circuit (PVC) remains UP on the end-devices. Therefore, routing entries that were pointing to that PVC remain in the routing table for a certain time and as a result,...
15 Nov 2007
...output you may encounter while troubleshooting. Explanations of the output...This output means you have a problem with the cable, channel service...serial line. You need to troubleshoot the problem with a loopback test. To...
02 Nov 2005
This chapter describes how to troubleshoot ATM problems that are seen when you transport Layer 2 frames/Layer 3 packets over a WAN backbone. It reviews:
11 Oct 2006
...18/Dec/2007 Troubleshooting IP over ATM PVC Connectivity 15/Nov/2007 Troubleshooting Line Problems and Errors on DS-3...
25 Apr 2005
This document helps troubleshoot router interfaces and modules. The document also discusses the causes of the problems, as well as basic procedures to troubleshoot, identify, and solve the problems.
07 Dec 2006
...incrementing output drops result from a problem with the transmit queue for a VC...Execute show atm vc and show atm pvc and analyze both the input and output...packet counters incrementing? Is the problem on the transmit side only? ...
15 Nov 2007