just a short question (related to a quite new feature from cisco). with the new cisco ASR software (15.0(1)S - released some days ago) it is able to do BGP on the same box. we need this feature because we use the VASI interfaces to bring and filter traffic from one VRF to another VRF and performing firewalling (ZBF).

basically we have on the box: [VRF_A via vasileft1]--[VRF_B via vasiright1]

and the box itself speaks BGP on VRF_B with some RR's: [ASRBox] ---- (RR) ---- [anotherbox]

the fun part is, if you want to announce (e.g. 0.0.0.0/0) from VRF_B (announced from anotherbox) to VRF_A it should be possible now with

feature.

according to BGP I need to configure the VRF_A peer as route-reflector- client so the routes from the anotherbox get reflected via RR to VRF_B.

but, it seems that the router itself needs to be tricked, since he

thanks oliver, will try and keep you (and the list) updated. -steven -----Original Message----- From: Oliver Boehmer (oboehmer) [mailto:oboehmer@cisco.com] Sent: Tuesday, August 03, 2010 8:06 AM To: Glogger Steven, SCS-NIT-NIO-PIO-DNW-NEO; cisco-nsp@puck.nether.net; nanog@nanog.org Subject: RE: [c-nsp] Cisco ASR BGP within the box question Steven, that new thinks

that both peers are in the same route-reflector cluster ("DENIED due to: reflected from the same cluster"): [...] so, does anyone knows a nice hidden command to disable this cluster-checking on a per-peer basis or so?

I'm not aware of an enhancement to set the cluster-id on a per-vrf basis, it is currently global.. But you could turn this into an eBGP session using local-as, for example router bgp 65501 address-family ipv4 vrf IABIP- neighbor 10.0.0.2 remote-as 65502 neighbor 10.0.0.2 local-as 65503 no-prepend replace-as address-family ipv4 vrf IACYP- neighbor 10.0.0.1 remote-as 65503 neighbor 10.0.0.1 local-as 65502 no-prepend replace-as not sure if this helps.. oli