01-21-2021 02:08 AM
Hello people,
I am trying to span layer 2 using mpls, on Cisco ASR920. I have a vlan (vlan 400) coming in on an interface (g0/22) on a Cisco ASR920, and i want to span it over to another ASR920 as layer 2. But............ there are 2 ways i can do this... Please could someone suggest what the difference in the ASR920 config below is? I don't have a lab and don't want it to fail when trying to put it into production...
CE1 ----------- PE1 (ASR920)-----------MPLS ----------- PE2 (ASR920) ----------- CE2
int g0/22
Option 1:
interface pseudowire10
encapsulation mpls
neighbor 2.2.2.2 10
l2vpn xconnect context 10
member pseudowire10
interface GigabitEthernet1/0/22
service instance 400 ethernet
encapsulation dot1q 400
rewrite ingress tag pop 1 symmetric
xconnect 10.4.6.6 400 encapsulation mpls
Option 2:
l2 vfi 400 manual
vpn id 400
neighbor 2.2.2.2 pw-class vpls400
interface vlan400
no ip address
xconnect vfi 400
bridge-domain 400
interface GigabitEthernet0/22
service instance 400 ethernet
encapsulation dot1q 400
rewrite ingress tag pop 1 symmetric
bridge-domain 400
01-21-2021 02:56 AM
Hello @dinesh2001 ,
option 1 is a point to point L2 service EoMPLS psuedowire
option 2 using VPLS is a point to multipoint service and would allow to add a third site later
So what to use really depends on what can be useful on the future.
I
Hope to help
Giuseppe
01-21-2021 03:18 AM
thank you, I dont plan to use a third site.so i could use either. I guess the simplest config would be the best.... any suggestions on which is the simplest and most reliable.. ie not likely to be affected by bugs?
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: