Ping and RTA
Michael.Washington at fitchratings.com
Michael.Washington at fitchratings.com
Thu Apr 26 16:39:25 CEST 2007
What is RTA?
Between the 10:20 pm and 10:30 pm CST, RTA for the same multiple devices
increases dramatically and then returns immediately to normal
operational/baseline levels. Any thoughts on what could be the root
cause of such a consistent occurrence? Would this be symptomatic of a
broadcast storm? Could Spanning Tree be the root cause? What is the
most simplistic way to determine the root cause?
See examples below:
***** Nagios *****
Notification Type: PROBLEM
Service: PING
Host: Chicago WAN Level3/Wiltel (secondary)
Address: 172.17.11.12
State: CRITICAL
Date/Time: Wed Apr 25 22:16:35 CDT 2007
Additional Info:
PING CRITICAL - Packet loss = 0%, RTA = 2131.27 ms
***** Nagios *****
Notification Type: RECOVERY
Service: PING
Host: Chicago WAN Level3/Wiltel (secondary)
Address: 172.17.11.12
State: OK
Date/Time: Wed Apr 25 22:20:57 CDT 2007
Additional Info:
PING OK - Packet loss = 0%, RTA = 1.25 ms
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