[j-nsp] MPLS MTU Juniper vs. CISCO

Here i have some information on MTU Cisco vs Juniper, I had investigated it several months ago. 1) MTU - JUNIPER http://www.juniper.net/techpubs/software/junos/junos73/swconfig73-interfaces/html/interfaces-physical-config5.html

Re: [j-nsp] MPLS MTU Juniper vs. CISCO

I learnt that physical mtu should be as close to 1600 (1604)for expansion of services or higher , Protocol family mpls I would instinctively add an additional 26 bytes to 1552. to account for Q in Q and other possible expansion. The Juniper physical interface MTU is set at a value above the p

[j-nsp] MPLS MTU Juniper vs. CISCO

Hello! Now we have cisco core network with MPLS MTU = 1526, for transit EoMPLS. 1518 - Ethernet + vlan .1q tag 8 - 2 MPLS Label 1518+8 = 1526 Example: interface GigabitEthernet0/1.15 description PE1 encapsulation dot1Q 15 ip address 1.1.1.30 255.255.255.252 tag-switching mtu 1526 ta