nanog mailing list archives

Re: Network management software with high detailed traffic report


From: sthaug () nethelp no
Date: Mon, 22 Nov 2010 10:46:58 +0100 (CET)

Does any one know the NMS (network management software) which can do the
fallowing:

1. Monitor on Cisco Routers/Switches interface utilization every 5-10
seconds and send e-mail alarm when utilization low or high of predefined
thresholds.
2. Collect net-flow statistics (at least src/dst) with granularity of 5-10-
seconds.

The main idea is to have detailed monitoring of the external links and to be
able to know why (by what traffic type) and when link was highly utilized.

Your requirements are somewhat unrealistic. Even if your NMS can fetch
SNMP counters / Netflow info every 5-10 seconds, you have no guarantee
that the router *updates* the counters / Netflow info this often.

Talk to your router vendor first.

Steinar Haug, Nethelp consulting, sthaug () nethelp no


Current thread: