If Servers Alive is running on the same site as the router, it should be possible to check that the line is up (not the interface) and if the line is up (ISDN) then the ISDN connection is active. If you only want to do some specific tests with the ISDN is UP (and not when you're "running" on the T1) then make those check depending on the ISDN Line being UP.
dirk. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Peter Hoermann Sent: Wed Dec 11 10:17 PM To: '[EMAIL PROTECTED]' Subject: RE: [SA-list] Checking ISDN backup interface. also, just cause I been thinking about it the way you've done it, both links could still be up, but the metric would route packets via t1 and not isdn, therefore isdn could well be connected, but still return an "up" in servers alive, since the route as far as its concerned is good, which has nothing to do with the isdn interface being up or down sorry to harp, but I use isdn as our links between our European offices and used to do a trace from servers alive using a batch file and look for an ip address in that trace (being the isdn interface ip add on that router), but as I found out when I got the isdn bill on one router which kept the link up (but the route as far as servers alive was good - hence returning an up), it wasn't really a reliable check for an isdn interface on a router (considering the slap I gave myself on the wrist when I had to justify the cost to my manager - for what? for nothing!) Peter -----Original Message----- From: Jack Lyons [mailto:[EMAIL PROTECTED]] Sent: Wednesday, 11 December 2002 21:56 To: '[EMAIL PROTECTED]' Subject: RE: [SA-list] Checking ISDN backup interface. I was working on this solution when I got your email. I still had the problem of the interface appearing up even when not connected - the value for .iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifAdminStatus showed up for the ISDN interface. After thinking about it and poking around in GETIF, I found the following OID that seems like it will work. For each route, it has a the ifIndex of the interface that the packets will go out of to get to that destination. I have created a SNMP check for the specific route and set it to alarm when the interface is set to the BRI interface. .iso.org.dod.internet.mgmt.mib-2.ip.ipRouteTable.ipRouteEntry.ipRouteIfIndex > -----Original Message----- > From: Peter Hoermann [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, December 11, 2002 3:09 PM > To: '[EMAIL PROTECTED]' > Subject: RE: [SA-list] Checking ISDN backup interface. > > snmp Jack, use getif to get the oid. You can check the specific bri > interface > Peter > > -----Original Message----- > From: Jack Lyons [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, 11 December 2002 20:58 > To: '[EMAIL PROTECTED]' > Subject: [SA-list] Checking ISDN backup interface. > > > I have Servers Alive monitoring a router on the remote end of a T1. > I have an ISDN backup to that router, so if the line goes down it is > picked > up by the ISDN backup. > > I want servers alive to be able to monitor the ISDN link, but I can't ping > the ip address of the ISDN link because it will appear up all the time. > > I started working on a batch file that did a tracert and find commands, > but > I was wondering if anyone had a smoother solution > > Thanks > Jack > To unsubscribe from a list, send a mail message to [EMAIL PROTECTED] With the following in the body of the message: unsubscribe SAlive
