Protocol Analysis for Cisco Routers

[lberdick]

Hey Guys,

Is their any function, software, MIB record, SNMP query or something that can display the distribution of upper level (layers 5-7)protocols that flow in and out of my routers. I have a mixed configuration of routers that include 1604, 2610, and 3640 routers. Im trying to do some analysis for bandwidth increase justification and I would like to know what type of traffic is flowing in and out. BTW, we use a frame relay topology with external CSU's for each location(s).

I appreciate the help

Thanks,
Lee

 

[Guest_imported]

You will have to purchase some type of sniffer software to allow you to baseline upper layer protocols. If you don’t need granular information you can use MRTG to record throughput and try to justify on just bulk traffic.

Here is a Cisco link for MIB's

http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml

Here is the link for MRTG:

http://people.ee.ethz.ch/~oetiker/webtools/mrtg/

 

[vlan52]

You can use flowscan or set up the cflowd daemon in order to retrieve flows, coming from the routers, then, you can go ahead and use rrd + mrtg to generate the reports.
That's going to give a lot of info regarding source, destination IP's, type of traffic, amount of traffic, etc...

Hope this helps,
vlan52

 

[lberdick]

Thanks Guys - I already use MRTG to do most of my analysis and can easlily conclude that they need a bandwidth increase. With MRTG and RDDtool the setup and custom configuration is...well...not exactly straightforward. I'll try to do some configuring with those tools using a differnt setup.

Any websites out there that helps with MRTG and RRDtool?

Thanks Again

 

[Guest_imported]

Hope these sites will help:

http://www.somix.com/software/mrtg/

(Templates)

http://www.geocities.com/mrtg_daemon/