On 02/10/2012 15:22, Adam Vitkovsky wrote: > I thought this is on by default but apparently it's not > > Try > neighbor x.x.x.x transport multi-session
In general you don't want to enable multisession bgp unless you know why you need it and you understand all the consequences of doing so. I really wouldn't recommend this as a means of avoiding session flaps due to capabilities renegotiation. Nick > > adam > -----Original Message----- > From: cisco-nsp-boun...@puck.nether.net > [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Aaron > Sent: Tuesday, October 02, 2012 4:02 PM > To: cisco-nsp@puck.nether.net > Subject: Re: [c-nsp] 6vpe - me3600x > > (resending due to ugly formatting) > > When I enabled vpnv6 on my pre-existing vpnv4 neighbor session I saw it > bounce....Is there any way around this ? ...i'm concerned about the > interruption (for operational environment) on the underlying vpnv4 l3vpn. > Would be only momentary though right?... looks like 10 seconds from > "nbr_reset" to "Up" > > If no way to avoid this, how do y'all do it ? maint window? > > Aaron > > noc-3600(config)#router bgp 64512 > > noc-3600(config-router)#address-family vpnv6 unicast > > % IPv6 routing not enabled > > noc-3600(config)#ipv unicast-routing > > noc-3600(config)#router bgp 64512 > > noc-3600(config-router)#address-family vpnv6 unicast > > noc-3600(config-router-af)#neighbor 10.101.0.254 activate > > *Oct 1 21:01:46: %BGP-5-NBR_RESET: Neighbor 10.101.0.254 reset > (Capabilitychanged) > > *Oct 1 21:01:46: %BGP-5-ADJCHANGE: neighbor 10.101.0.254 Down Capability > changed > > *Oct 1 21:01:46: %BGP_SESSION-5-ADJCHANGE: neighbor 10.101.0.254 VPNv4 > Unicast topology base removed from session Capability changed > > *Oct 1 21:01:47: %BGP-5-NBR_RESET: Neighbor 10.101.0.254 active reset > (Peer closed the session) > > *Oct 1 21:01:47: %BGP_SESSION-5-ADJCHANGE: neighbor 10.101.0.254 VPNv6 > Unicast topology base removed from session Peer closed the session > > *Oct 1 21:01:47: %BGP_SESSION-5-ADJCHANGE: neighbor 10.101.0.254 VPNv4 > Unicast topology base removed from session Peer closed the session > > *Oct 1 21:01:56: %BGP-5-ADJCHANGE: neighbor 10.101.0.254 Up > > > > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/