Network Fault Test Nov 15, 2012
We shut down the primary routing switch (NOC) in HSB 127 at 6:25 am. The ping I was running to a switch in UHB missed 9 counts, 4 dropped pings and the network switched over to the backup switch (BNOC) in UHB. There were many “whatsup alerts”, all but a few were for interfaces being down not entire devices.
Some things to note

* The RIPC 2524 router only connects to the NOC, it was down

* The WISM blade in the NOC chassis was down; this reduces the total number of AP units that can be active on the campus wireless network from 600 to 300. We currently have 340 AP units.

* The CUCM server was down, the phones all continued to work since they communicate with CUCM2 which was up. The phones will switch from CUCM 2 to CUCM1 if CUCM2 fails.

* Two of the five ISDN PRI trunks which handle phone calls external to the campus were down, limiting the number of simultaneous calls to or from UIS. (With all the ISDN lines working we can handle 115 calls, with only 3 working ISDNs we are limited to 69)
Did anyone experience an outage?
Did any service stop and not restart after the network topology change?
Are there any other comments?
Thanks for your time.

Jamie Voyles
HSB 119
217 206-7840