BRI interfaces status check
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From: geoar75 on 15 Apr 2010 07:03 Hello, I need to check the status of the BRI interfaces from all of the routers on our network. I have to check it everyday to see which one is active. Is there any utility that performs such a task? Do I have to enable SNMP on the routers and would the network performance be affected by this move? Thanks a lot! Giorgos
From: alexd on 15 Apr 2010 14:12 On 15/04/10 12:03, geoar75(a)gmail.com wrote: > I need to check the status of the BRI interfaces from all of the > routers on our network. I have to check it everyday to see which one > is active. > Is there any utility that performs such a task? Yes. Any NMS worthy of the description should do this. As an example, I use Zabbix to poll the ifOperStatus of interfaces I'm interested in. > Do I have to enable SNMP on the routers and would the network performance be affected by > this move? You do not have to, as you could send remote syslog and have your syslog server alert you when it sees an up/down message. However, SNMP is the cross-platform standard way of doing this so will probably be easier. As for performance, it's impossible to measure something without affecting it, but so long as you're not polling every 5 seconds or something silly like that you shouldn't notice. You can also have a device send an SNMP 'trap' to inform you of the interface changing status. And finally, for a higher-level overview of how things are working, you can poll the next hop of a particular route with SNMP to see which way traffic is flowing, although this may not apply to your network topology. -- <http://ale.cx/> (AIM:troffasky) (UnSoEsNpEaTm(a)ale.cx) 18:52:38 up 6 days, 8:04, 2 users, load average: 0.07, 0.17, 0.17 It is better to have been wasted and then sober than to never have been wasted at all
From: S. Checker on 22 Apr 2010 15:31 bod43 <Bod43(a)hotmail.co.uk> wrote: > MRTG can for sure do the job but I suspect that it > is no longer in development (years ago now) and that > you might be better investing your time in something else. Strange comment. The latest release of MRTG is from 20-Jan-2010. However, it's more a measurement tool than alerting. I measure traffic on a whole pile of BRIs with it, but for notification there are a number of SNMP tools, including your suggestion of Cacti. -- Ceci n'est pas une sig.
From: bod43 on 22 Apr 2010 19:08 On 22 Apr, 20:31, spam...(a)gmail.com (S. Checker) wrote: > bod43 <Bo...(a)hotmail.co.uk> wrote: > > MRTG can for sure do the job but I suspect that it > > is no longer in development (years ago now) and that > > you might be better investing your time in something else. > > Strange comment. The latest release of MRTG is from 20-Jan-2010. Hmm. Appears I was completely wrong. Sorry. I recall looking at MRTG a few years ago and for some reason decided that development had been stopped.
From: Rob on 23 Apr 2010 05:02
geoar75(a)gmail.com <geoar75(a)gmail.com> wrote: > I mentioned MRTG, because I'm already using it on some of our routers > to check the speed utilization. It would be great if I set it up to > include the BRI interfaces as well. Though it will take lots of time > and research to setup all those MIBs and OIDs, it would be very > interesting. Not at all, it only requires that you add the BRI interfaces to the mrtg.cfg the same way you add all other interfaces. Make sure you don't use the numerical interface number as that is going to change. Something like this will work: Target[router.20]: \BRI1/0\:1:public(a)router SetEnv[router.20]: MRTG_INT_IP="" MRTG_INT_DESCR="BRI1/0:1" (plus the remainder of a normal entry in mrtg.cfg) |