User manual

Nortel Secure Router 8000 Series
Configuration -WAN Access
xii
Nortel Networks Inc.
Issue 5.3 (30 March 2009)
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