Configure The Isl - Lenovo CN4093 Application Manual

Configure the ISL

1. Configure STP if required. Use PVRST or MSTP mode only:
2. Configure the ISL ports and place them into a LAG (dynamic or static):
3. Configure VLAG Tier ID. This is used to identify the VLAG switch in a multi-tier
4. Configure the ISL for the VLAG peer.
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CN4093 Application Guide for N/OS 8.3
The ISL connecting the VLAG peers is shared by all their VLAGs. The ISL needs to
be configured only once on each VLAG peer.
CN 4093(config)# spanning-tree mode pvrst
CN 4093(config)# interface port 1-2
CN 4093(config-if)# switchport mode trunk
CN 4093(config-if)# lacp mode active
CN 4093(config-if)# lacp key 200
CN 4093(config-if)# exit
CN 4093(config)# vlag isl adminkey 200
Notes:
 In this case, a dynamic LAG is shown. A static LAG (portchannel) could be
configured instead.
ISL ports and VLAG ports must be members of the same VLANs.

environment.
CN 4093(config)# vlag tier-id 10
Make sure you configure the VLAG peer (VLAG Peer 2) using the same ISL
aggregation type (dynamic or static), the same VLAN and the same STP mode and
tier ID used on VLAG Peer 1.