When configuring MLAG, Arista recommends that the trunk group command be used on the VLAN used for MLAG peer communication. What is the purpose of the trunk group command?
When configuring MLAG, Arista recommends that the trunk group command be used on the VLAN used for MLAG peer communication. What is the purpose of the trunk group command?
The purpose of the trunk group command is to prevent the configured VLAN from leaking out onto other trunks. This ensures that the VLAN used for MLAG peer communication (typically VLAN 4094) is restricted to the intended peer-link, thereby maintaining proper traffic segregation and avoiding unnecessary traffic on other trunks.
By doing this, when we create a new trunk, by default VLAN 4094 will not be included. This keeps the MLAG peer-link traffic on this link, and only on this link (unless you add the MLAG-Peer trunk group to another trunk, but don’t do that). Maybe C is correct.
The trunk group MLAG-Peer command creates a trunk group, which is a cool way of assigning VLANs to trunks. We now need to assign the same group to the peer-link: Arista-1(config-vlan-4094)#int po 1 Arista-1(config-if-Po1)#switchport trunk group MLAG-Peer Now, VLAN 4094 will only be included on trunks that are also assigned to the MLAG- Peer trunk group. By doing this, when we create a new trunk, by default VLAN 4094 will not be included. In arista worrior
Answer C according to Arista Warrior book. See post cronus830 and gksong
C :Note: Assigning VLAN 4094 and port channel X to the mlagpeer trunk group prevents traffic from VLAN 4094 from being carried on any other trunk.