Inter-Switch Trunks - Avaya Virtual Services Platform 7000 Series Troubleshooting Manual

2. Enter the show logging command.
3. Review the system log for possible SMLT-related error messages.
Enabling SMLT on a port
Ensure that SMLT is enabled on the required switch port.
Procedure
1. Enter Ethernet Interface Configuration mode:
enable
configure terminal
interface Ethernet <port>
2. Enter the smlt port <port_number> <1–512> command.

Inter-switch trunks

Ensure that aggregation switches are connected through an inter-switch trunk (IST) to support
SMLT configuration.
Checking IST VLAN configuration
Observe if the same VLAN is configured at both ends of the IST.
Note:
The IST owner VLAN must contain only IST ports.
Procedure
1. Enter Privileged EXEC mode:
enable
2. Enter the show vlan command.
3. Observe the VLAN configuration information.
Assigning a VLAN to an IST
Assign a specific VLAN to an IST.
Procedure
1. Enter MLT Interface Configuration mode:
enable
configure terminal
interface mlt <1-64>
July 2015
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SMLT does not route packets properly
Troubleshooting Avaya VSP 7000 Series
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