VPLS MTU end to end

[mazlan.alatif]

I have setup VPLS in our network. We discovered that MTU pass thru is only 1478 bytes end to end (CE to CE). Unlike MPLS VPN, end to end is 1500 bytes which is normal (CE to CE). Is this normal for VPLS or EToM?

As what we experineced before in MPLS VPN, if end to end can't achive 1500 bytes, users will having problem to run application and browsing issue.

--mazlan

--mazlan

[mazlan.alatif]

Hi Andy,

I tried to modify SVI mtu but still same ::(

interface Vlan333

mtu 1540

no ip address

xconnect vfi jaring

end

I still get 1478 end to end.

--mazlan

[william.caban]

Try to setup the vlan mtu then the SVI mtu:

!

vlan 333

mtu 1540

!

interface vlan 333

mtu 1540

... etc...

!

[mazlan.alatif]

Hi William,

Thanks for the reply.

I have modified the vlan mtu but still same.

I have double checked and confirm along the path support larger MPLS MTU, as our MPLS VPN also riding on the same path.

I just dont know else where is the bottleneck.

--mazlan