Specifications

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Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
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Chapter 4 Cisco IGX 8400 Series Trunks
IGX Trunk Management
Step 5 (Optional) Configure the number of connection IDs and the available bandwidth for the virtual trunk
with the switch software cnfrsrc command.
Step 6 Add the virtual trunk with the switch software addtrk slot.port.vtrk command. You only need to use the
addtrk command on one end of the trunk.
Note Each end of a virtual trunk can have a different port interface. However, both ends of the trunk
must have the same trunk bandwidth, connection channels, cell format, and traffic classes.
IGX Trunk Management
Managing IGX trunks primarily involves logging events, reconfiguring trunks as required by changing
networking environments, and responding to alarms or error messages by troubleshooting the trunk as
necessary. For information on troubleshooting a trunk on the IGX, see the “IGX Trunk Troubleshooting”
section on page 4-11.
Event Logging
All trunk log events display the trunk number. Trunk event logs are accessible through the NMS or by
using the switch software dsplog command at the CLI.
See Table 4-8 for an example of an IGX event log messaging.
Reconfiguring a Trunk
Tip Some trunk parameters cannot be changed without first deleting the trunk. Check the full command
description for the switch software cnftrk command in the Cisco WAN Switching Command Reference
for details on the parameters that require trunk deletion.
Note MPLS partitions are not affected by the reconfiguration of trunks or lines.
Table 4-8 IGX Log Messaging for Activating and Adding VTs
Class Description
Info NodeB at other end of TRK 1.2.1
Clear TRK 1.2 OK
Major TRK 1.2 Loss of Sig (RED)
Clear TRK 1.2.1 Activated