Hi there,
I've set up an rmon alarm threshold for one of my 6500 Gi interfaces (see below). Unfortunatley, the "delta" sample result never triggers the alarm, since it's always way below what I expect. Furthermore, I notice far more negative values than what I would expect from the counters rolling over.
In order to confirm my threshold values and the counter reliability, I've performed some snmpget's over 1 minute and compared them with the interface counters on the Switch - all seems well with this!!
So in summary, is there a problem with the "delta" function within rmon ???
Cheers
rmon event 1 log trap ******** description "BW Usage Exceeds 10%" owner abc
rmon event 2 trap ******** description "BW Usage Normalised" owner abc
rmon alarm 10 ifXEntry.6.94 60 delta rising-threshold 1100000000 1 falling-threshold 800000000 2 owner abc
Switch>sh rmon a
Alarm 10 is active, owned by tmpinf1
Monitors ifXEntry.6.94 every 60 second(s)
Taking delta samples, last value was 15576
Rising threshold is 1100000000, assigned to event 1
Falling threshold is 800000000, assigned to event 2
On startup enable rising or falling alarm
V:\>snmpget -v 2c -c ******** 129.220.57.3 ifHCInOctets.9
IF-MIB::ifHCInOctets.94 = Counter64: 98252338209223
V:\>snmpget -v 2c -c ******** 129.220.57.3 ifHCInOctets.9
IF-MIB::ifHCInOctets.94 = Counter64: 98252374419211
Switch#sh ver
Cisco Internetwork Operating System Software
IOS (tm) s72033_rp Software (s72033_rp-IPSERVICESK9_WAN-M), Version 12.2(18)SXF3, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by cisco Systems, Inc.
