Enable BGP ECMP (Equal Cost Multi Path) with vEdge Template

[shlomyb]

Hi,

I have at my lab vEdge running version 20.9.3.1 with 2 WANs.

from both I'm getting over BGP default route -

vEdge3# show bgp routes 150.1.1.0/24
bgp routes-table vpn 0 150.1.1.0/24
info 0
nexthop 150.33.0.2
weight 0
origin incomplete
as-path "200 200"
path-status valid,external
tag 0
ospf-tag 0
info 1
nexthop 10.33.0.2
weight 0
origin incomplete
as-path "100 100"
path-status valid,best,external
tag 0
ospf-tag 0

I thought that I've chosen the right Template modification but reality shows I'm missing something.

when looking at the applied configuration - 

vpn 0
router
bgp 12345
address-family ipv4-unicast
maximum-paths paths 2
!
neighbor 10.33.0.2
no shutdown
remote-as 100
!
neighbor 150.33.0.2
no shutdown
remote-as 200
!
!

when looking at the routing table only 1 is valid instead of both.

how do I enable both ?

[Harold Ritter · Accepted solution]

Hi @shlomyb ,

By default, IOS will not load balance between two paths received from different ASN.

Try adding the following command to your BGP configuration.

router bgp 12345

bgp bestpath as-path multipath-relax

Regards,

[shlomyb]

first of all thank you for your help !

just to be sure - I'm talking about vEdge and not cEdge - therefor I'm not sure it is right to call it IOS.

can you refer me what to change over the Template using the vManange ?

[shambhu.kumar · Accepted solution]

vpn 0
router
bgp 12345
best-path
as-path multipath-relax
!
address-family ipv4-unicast
maximum-paths paths 2

[shlomyb]

thank you very much for you patient and help !

much appreciated !