Hi all,
I have the following setup and need to know the best practices to solve
EVPN type 5 issues.
Setup:
Two ACX7100 as collapse spine with EVPN/VXLAN
Using type 5 routes between the spines so iBGP can be avoided in
routing-instance.
Both spines has same bgp as number in the routing-instance WAN
See below for a part of configuration
Problem:
Incoming routes from WAN router into spine1 will be advertised to spine2 as
type 5 routes
spine2 will not accept them due to AS number exit in the as-path already.
Solution:
I can easily fix it with "loop 2" config in the routing-options part, but
is this the right way?
Does there exist any command to change the EVPN Type 5 behavior from eBGP
to iBGP?
Different AS number in routing-instance?
What are the best practices?
Config part:
show routing-instances WAN protocols evpn
ip-prefix-routes {
advertise direct-nexthop;
encapsulation vxlan;
reject-asymmetric-vni;
vni 99100;
export EXPORT-T5-WAN;
}
policy-statement EXPORT-T5-WAN {
term 1 {
from protocol direct;
then accept;
}
term 2 {
from protocol bgp;
then accept;
}
}
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