Manual

10.7.3 Checking the configuration......................................................................................................10-23
10.8 Creating a PVC-group and configuring the PVC service mapping.......................................................10-24
10.8.1 Establishing the configuration task............................................................................................ 10-24
10.8.2 Creating a PVC-group and configuring PVC service mapping...................................................10-25
10.8.3 Checking the configuration........................................................................................................ 10-26
10.9 Configuring the service type of PVC and the OAM parameters ........................................................... 10-26
10.9.1 Establishing the configuration task............................................................................................ 10-26
10.9.2 Configuring the service type of a PVC........................................................................................10-28
10.9.3 Configuring the OAM F5 loopback.............................................................................................10-28
10.9.4 Checking the configuration........................................................................................................ 10-29
10.10 Maintaining ATM...............................................................................................................................10-29
10.10.1 Clearing the ATM interface statistics.......................................................................................10-29
10.10.2 Setting loopback to detect if the interface is normal ................................................................. 10-29
10.10.3 Debugging ATM...................................................................................................................... 10-30
10.11 Configuration examples......................................................................................................................10-31
10.11.1 Example for configuring IPoA................................................................................................. 10-31
10.11.2 Example for configuring IPoEoA.............................................................................................10-34
10.11.3 Example for configuring PPPoA.............................................................................................. 10-36
10.11.4 Example for configuring PPPoEoA..........................................................................................10-38
10.12 Troubleshooting..................................................................................................................................10-41
10.12.1 ATM Interface is down............................................................................................................ 10-41
10.12.2 Interfaces cannot successfully ping each other ........................................................................ 10-42
10.12.3 PVC is down though the ATM interface is up...........................................................................10-42
10.12.4 Pinging the peer fails though PVC is UP................................................................................. 10-43
10.12.5 Severe packet dropping and CRC errors occur though the ping succeeds ................................ 10-44
10.12.6 Link is not up when using IPoA or PPPoA...............................................................................10-44
10.12.7 Packet loss caused by the deletion of some PVCs in the PVC-group ....................................... 10-45
11 High-speed ATM configuration..............................................................................11-1
11.1 Introduction.............................................................................................................................................11-2
11.1.1 ATM protocol stack......................................................................................................................11-2
11.1.2 ATM interface.............................................................................................................................. 11-3
11.1.3 ATM applications.........................................................................................................................11-4
11.1.4 references......................................................................................................................................11-4
11.2 Configuring ATM interfaces.................................................................................................................. 11-4
11.2.1 Establishing the configuration task...............................................................................................11-4
11.2.2 Configuring the clock mode.........................................................................................................11-5
11.2.3 Configuring the frame format.......................................................................................................11-6
11.2.4 Configuring the overhead byte.....................................................................................................11-6
11.2.5 Configuring the scrambling..........................................................................................................11-7
11.2.6 Configuring the loopback mode...................................................................................................11-8
11.2.7 Checking the configuration.......................................................................................................... 11-8
Nortel Secure Router 8000 Series
____________________________________________________________________________ Configuration -WAN Access
xii
Nortel Networks Inc.
Issue 5.3 (30 March 2009)