Arista vEOS, MLAG and MTU 9214, Peer wouldn't come up on EVE-NG

freefor · Post by **freefor** » Fri Aug 09, 2019 5:01 am

HI All
I ran into an issue with Arista vEOS-lab image on EVE-NG (2.0.3-95) and MLAG peer not coming online
So in real hardware, one would set the MTU to 9214 on the MLAG peer link as shown below
leaf01#sh run int vl4094
interface Vlan4094
mtu 9214
no autostate
ip address 94.0.0.0/31
leaf01#

This caused the MLAG peer link on VLAN4094 to not come up on EVE-NG
Once I removed the MTU 9214 and set it to defaults as shown below, the MLAG peers came online
leaf01#sh run int vl4094
interface Vlan4094
no autostate
ip address 94.0.0.0/31
leaf01#

So this post is FYI.