Whats the best way to prevent loops in the above diagram. Core routers are configured for VPLS, and carrier is providing us with 2 fibres presenting us with 3 vlans from remote sites.
I've looked at using VPLS Multihoming, but as soon as i specify an active interface the lab breaks. I am passing multiple vlan's through the routers which might be the problem
Routing instance config:
BGP1
instance-type vpls;
vlan-id all;
interface ge-0/0/5.11;
interface ge-0/0/5.12;
interface ge-0/0/6.11;
interface ge-0/0/6.12;
route-distinguisher 4001:10000;
vrf-target target:65000:10000;
protocols {
vpls {
no-tunnel-services;
site site2 {
site-identifier 2;
site-preference primary;
}
}
}
BGP0
instance-type vpls;
vlan-id all;
interface ge-0/0/5.11;
interface ge-0/0/5.12;
interface ge-0/0/6.11;
interface ge-0/0/6.12;
route-distinguisher 3001:10000;
vrf-target target:65000:10000;
protocols {
vpls {
no-tunnel-services;
site site2 {
site-identifier 2;
site-preference backup;
}
What im struggling with is how these failover. Adding "active interface" stops it working entirely. Ive read that a physical link down will cause them to flip from active/standby, but im unable to lab this in GNS3 as physical interfaces are always up, even when admin down
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