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mtsphere
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Joined: Thu Jun 22, 2017 3:53 am

ROSv7 BGP VPLS with Cisco IOX-XE

Mon Sep 19, 2022 2:00 pm

Hey guys,

We're trying to configure the bgp-based vpls with IOS-XE as the route-reflectors.

Seems that we can't make the Mikrotik side to send the RT's towards the RR.

Here's what we have for now.

RR Side, IOS-XE
router bgp 12345
 !
 template peer-policy TO_RR_CLIENTS_L2VPN
  route-reflector-client
  maximum-prefix 5000 85 warning-only
  send-community both
 exit-peer-policy
 !
 !
address-family l2vpn vpls
  neighbor 192.168.250.1 activate
  neighbor 192.168.250.1 inherit peer-policy TO_RR_CLIENTS_L2VPN
  neighbor 192.168.250.1 suppress-signaling-protocol ldp
Mikrotik side, ROSv7.5
/routing bgp vpls
add bridge=test-vpls-bridge bridge-cost=50 bridge-horizon=1 cisco-id=192.168.250.1&12345:600 disabled=no export-route-targets=12345:600 import-route-targets=12345:600 name=bgp-vpls1 pw-control-word=enabled rd=192.168.250.1:600
The MT side won't send the update to RR every combo we try. No filtering is done on the RR side for the purpose of this testing.
The same RR side config does work with the ROSv6.

Thanks for any input!
 
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clambert
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Re: ROSv7 BGP VPLS with Cisco IOX-XE

Mon Sep 19, 2022 5:20 pm

Hi, I think there is an error in the configuration, because you are trying to establish BGP autodiscovery BGP signaling in the Cisco-XE side:
neighbor 192.168.250.1 suppress-signaling-protocol ldp
and BGP autodiscovery LDP signaling in the mikrotik side:
cisco-id=192.168.250.1&12345:600
 
mtsphere
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Re: ROSv7 BGP VPLS with Cisco IOX-XE

Tue Sep 20, 2022 12:22 pm

Hey Clambert,

Thanks for your reply!

The same setup was working in v6. And it still does work.

Look at this thread
https://forum.mikrotik.com/viewtopic.php?t=171582
But nevertheless, tried that variation also with the same result :/

Cheers
 
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clambert
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Re: ROSv7 BGP VPLS with Cisco IOX-XE

Tue Sep 20, 2022 4:04 pm

Ok, if you want to implement BGP Autodiscovery and BGP signaling, you have to use site-id instead cisco-id (https://help.mikrotik.com/docs/display/ROS/BGP#BGP-VPLS).

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