[c-nsp] bvi stays up even when no pw's are up in bridge-domain - XR 4.1.2

[Vitkovský Adam]

Than it is a bug.

adam
> -----Original Message-----
> From: Aaron [mailto:aaron1 at gvtc.com]
> Sent: Monday, May 05, 2014 4:38 PM
> To: Vitkovský Adam; cisco-nsp at puck.nether.net
> Subject: RE: [c-nsp] bvi stays up even when no pw's are up in bridge-domain
> - XR 4.1.2
> 
> No.  no ac's are active (up).  There are 2 configured ac pw's in bridge domain,
> but they are both down, and bvi remains up.... why ?
> 
> Copied from previous posting...
> 
> RP/0/RSP0/CPU0:9k#sh run l2v br gr v45
> l2vpn
> bridge group v45
>   bridge-domain v45
>    neighbor 10.101.12.250 pw-id 45
>     backup neighbor 10.101.12.251 pw-id 45
>    routed interface BVI45
> 
> **** it shows one AC up, but that's the BVI AC.  Shouldn't the BVI go down
> when those 2 pw's are down. ?
> 
> RP/0/RSP0/CPU0:9k#sh l2v br gr v45
> Bridge group: v45, bridge-domain: v45, id: 4, state: up, ShgId: 0,
> MSTi: 0
>   Aging: 300 s, MAC limit: 4000, Action: none, Notification: syslog
>   Filter MAC addresses: 0
>   ACs: 1 (1 up), VFIs: 0, PWs: 2 (0 up), PBBs: 0 (0 up)
>   List of ACs:
>     BV45, state: up, BVI MAC addresses: 2
>   List of Access PWs:
>       Neighbor 10.101.12.250 pw-id 45, state: down, Static MAC addresses: 0
>       Neighbor 10.101.12.251 pw-id 45, state: down, Static MAC addresses: 0,
> backup
>   List of VFIs:
> 
> **** BVI is still UP!
> 
> RP/0/RSP0/CPU0:9k#sh ip vrf one int br bvi 45 Fri May  2 16:17:16.744 CDT
> 
> Interface                      IP-Address      Status
> Protocol
> BVI45                          1.2.3.3    Up                    Up
> 
> 
> 
> -----Original Message-----
> From: Vitkovský Adam [mailto:adam.vitkovsky at swan.sk]
> Sent: Saturday, May 03, 2014 7:50 AM
> To: Aaron; cisco-nsp at puck.nether.net
> Subject: RE: [c-nsp] bvi stays up even when no pw's are up in bridge-domain
> - XR 4.1.2
> 
> Hi Aaron,
> 
> Are there any attachment circuits active in the bridge-domain?
> The BVI is supposed to stay up only if there is any active bridge port being it
> an AC or PW.
> And the line protocol is up when BD is up and the IP is not in conflict.
> 
> adam
> > -----Original Message-----
> > From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf
> > Of Aaron
> > Sent: Friday, May 02, 2014 11:21 PM
> > To: cisco-nsp at puck.nether.net
> > Subject: [c-nsp] bvi stays up even when no pw's are up in
> > bridge-domain - XR
> > 4.1.2
> >
> > Anyone know why this bvi stays up up even though there aren't any L2
> > interfaces/pw's up in this bridge-domain?
> >
> > I would like the BVI interface to go down down when there are no
> > underlying layer 2 connections to be serviced.
> >
> > This was the way ios switches have always operated. not sure why this
> > isn't acting the same.
> >
> > Aaron
>