Distributed Rovers are on the RSes at the NAPs to gather inforamtion and send it to the Routing Operations Center (ROC).
Gated ->via SMUX->ISODE SNMP AGENT ->NAPROVERDAEMON --Does alot of stuff that Class Rover of the NSFNET days did, just better.
All this feeds to the CMU SNMP1/2 agent which gets queried by the ROC for monitoring.
Delay is calculated by pinging each of the NSP hosts attached to the NAP.
There are a number of advantages to using SNMP2 versus SNMP1.
Currently, SNMP2 is in use with authentication and no encryption. Encryption will be added shortly.
OOB access is not working yet. That will be fixed next week.
How do we know the IP utilization? We don't. The only way to do this is to be able to sample things at the various NSP routers at the NAPs. Paul Vixie suggested that Merit would be able to write a program and send it to the operators and have them run it and send the data back to Merit.