Re: Strange BGP announcement.

[Scott Gifford <sgifford () alastair tir com>]

> > > Bays don't crash (at least not in the general case ... for example,
> > > mine stayed up this time and the last time this happened), but they do
> > > send a NOTIFY and bring down the BGP session, as required by the RFC. 
> > > (I believe gated does this also.)

  In case any Bay Networks users didn't already know this, reasonably new 
version of the system software have a switch to turn off this behavior:

1:TN]$g wfBgpPeerEntry.41.*
wfBgpPeerEntry.wfBgpPeerASLoopDetect.157.130.101.182.157.130.101.181 = 2
wfBgpPeerEntry.wfBgpPeerASLoopDetect.204.70.16.38.204.70.16.37 = 1
wfBgpPeerEntry.wfBgpPeerASLoopDetect.204.70.100.66.204.70.100.65 = 1
wfBgpPeerEntry.wfBgpPeerASLoopDetect.209.54.51.230.209.54.51.229 = 2
wfBgpPeerEntry.wfBgpPeerASLoopDetect.209.54.101.238.209.54.101.237 = 2

[1:TN]$set wfBgpPeerEntry.wfBgpPeerASLoopDetect.204.70.100.66.204.70.100.65 2
                          (41)                  (interface)
[1:TN]$commit

  Set this flag to '2' for each interface to keep your router from tearing
down BGP sessions when it finds a loop.  Don't forget to commit 
afterwards, and then to do a "save config config" so it will take after 
you reboot.  

  This has saved our butts several times. 

------Scott.