Use the following procedure to configure the required Split MultiLink Trunking (SMLT) parameters to allow SPBM to interoperate with SMLT on the switch.
Note
The assignment of primary and secondary roles to the vIST peers is automatic. The switch with the lower system ID (between the two vIST peers) is primary, and the switch with the higher system ID is secondary when default system-id values are being used.
SMLT peer system ID is part of the required configuration. You must configure the SMLT peer system ID as the nodal MAC of the peer device. In the IS-IS network, the nodal MAC of devices should be eight apart from each other.
When using the default hardware assigned system-id value, the SMLT Virtual BMAC is automatically derived by comparing the system-id values of the two vIST peers. A value of 0x01 plus the lower of the two system-id values is used as the SMLT Virtual BMAC.
When using a manually configured system-id value, the SMLT Virtual BMAC must also be manually configured.
An I-SID must be assigned to every VLAN that is a member of an Layer 2 VSN. Also if an Layer 2 VSN is created on one vIST Peer, it must also be created on the other vIST peer.