I have written a simple perl script that uses SNMP polling to check the status of some of our BGP peerings from Cisco routers. Unfortunately, the script is closely tied to our configuration information so it's not appropriate to post as is. As I'm in Tampa, I don't have all my documentation on the MIB variables I used. To get you started, here are the hybrid text/numeric OIDs used by the script to poll the applicable data out of the tables: .iso.org.dod.internet.mgmt.mib.15.3.1.7 BGP Peer Remote Address .iso.org.dod.internet.mgmt.mib.15.3.1.2 BGP Peer FSM State .iso.org.dod.internet.mgmt.mib.15.3.1.15 BGP Peer FSM Transitions The premise of the script is to poll periodically for the state of each peer. If the state is different than the last poll or the count of transitions was incremented (indicating a peering went down and was reestablished between polls) a warning message is sent to a list of recipients. The Peer Remote Address table is used to dynamically discover new peerings. Other replies have mentioned the use of BGP traps. Traps are probably the better way to go -- we, unfortunatly, have some issues with our current trap collection that didn't allow us to easily add the BGP processing. - Doug / Douglas A. Junkins | Network Engineering \ / Sr. Network Engineer | NorthWestNet \ \ junkins@nwnet.net | Bellevue, Washington, USA / \ +1-425-649-7419 | / On Thu, 5 Jun 1997, Curtis Generous wrote:

We have been caught several times lately with some of our border routers loss of BGP peering going undetected for sometime. Is there a way to enable BGP peering loss monitoring via SNMP from a CISCO router? I've looked at both the public and private MIBS but haven't found anything.

I am aware of the 'nocol' package but really was hoping for an SNMP based approach to tie into our net-mgmt packages (sunnet and hpov).

TIA

--curtis -- Curtis Generous generous@uucom.com Phone: (703) 461-1350 UUcom Inc., Suite 250, 4875 Eisenhower Avenue, Alexandria, VA 22304-0797