Mlt With Lacp And Smlt Configuration Considerations - Avaya 8600 Configuration Manual

In the ACLI Global Configuration Mode, use the following command to remove a VLAN from
an active LACP-enabled MLT:
• no mlt <mlt-id> vlan <vid>
In EDM, navigate to the following tab to dynamically add or remove VLANs from an active
LACP-enabled MLT:
• VLAN > MLT/LACP > Multilink/LACP Trunks
Note:
It is not allowed to add or remove individual ports from a VLAN when these ports are
members of an active LACP-enabled MLT unless LACP is disabled first. After disabling
LACP, you can use the following commands to add or remove individual ports on the MLT.
In the CLI:
• config vlan <vid> ports add <ports in LACP-enabled MLT>
• config vlan <vid> ports remove <ports in LACP-enabled MLT>
In the ACLI Global Configuration Mode:
• vlan members <vid> <slot/ports in LACP-enabled MLT>
• no vlan members <vid> <slot/ports in LACP-enabled MLT>
In EDM:
• VLAN > Basic
To enable tagging on ports belonging to a LAG, disable LACP on the port and then enable
tagging and LACP on the port.
If you enable Open Shortest Path First (OSPF) routing on a port, do not set the LACP periodic
transmission timer to less than 1 second.

MLT with LACP and SMLT configuration considerations

Split MultiLinkTrunks (SMLT) can be configured with MLT or MLT with LACP. Follow these
guidelines when you configure SMLT with LACP:
• When you set the LACP system ID for SMLT, configure the same LACP SMLT system ID
on both aggregation switches to avoid the loss of data. Avaya recommends that you
configure the LACP SMLT system ID to be the base MAC address of one of the aggregate
switches, and that you include the SMLT-ID. Ensure that the same System ID is configured
on both of the SMLT core aggregation switches.
• If you use LACP in an SMLT square configuration, the LACP ports must have the same
keys for that SMLT LAG; otherwise, the aggregation can fail if a switch fails.
• If an SMLT aggregation switch has LACP enabled on some of its MultiLink trunks, do not
change the LACP system priority. If some ports do not enter the desired MultiLink trunk
Configuration — Link Aggregation, MLT, and SMLT
Link aggregation configuration considerations
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