Network Monitoring System - Recommendations?

["Charlie Khanna - NextWeb" <charlie () nextweb net>]

Hi - I was interested in finding out what software applications other ISPs
are using for network monitoring?  For example:

 

1)       Overall network health - uptime reports

2)       Backup router config automatically

3)       Bandwidth reporting (or integration with an MRTG-type app)

4)       SNMP trap support (BGP/OSPF session drops - emails out)

5)       Database back end (port info into or over to other apps)

 

I'm just looking for something well rounded for a small ISP.  I've heard
about OpenNMS and other apps but I'd like to get everyone's feedback.
Thanks!

 

-Charlie