RMON Network utilization is estimated at 0

a.tsemach · ‎03-12-2010

Hi, I'm trying to retrieve historical statistics from a 7206VXR Version 12.4(15)T11 via LMS3.0.1 CiscoVIew mini-rmon Version & Patch Level: 6.1.7

		Port Name	Buckets Requested	Buckets Granted	Sampling Interval(sec)	Owner
1.		Gi0/2	50	50	180

mini-rmon confgured the port for me as follows:

interface GigabitEthernet0/2

rmon collection history 1 buckets 50 interval 180

However I'm getting no statistics:

Traffic Statistics History

Interval Start Time

Util %

Total Packets

Total Octets

Broadcasts

Multicasts

1.	12 Mar 2010 14:47:19 GMT+02:00	0.0	0	0	0	0
2.	12 Mar 2010 14:50:19 GMT+02:00	0.0	0	0	0	0
3.	12 Mar 2010 14:53:19 GMT+02:00	0.0	0	0	0	0
4.	12 Mar 2010 14:56:19 GMT+02:00	0.0	0	0	0	0
5.	12 Mar 2010 14:59:19 GMT+02:00	0.0	0	0	0	0
6.	12 Mar 2010 15:02:19 GMT+02:00	0.0	0	0	0	0
7.	12 Mar 2010 15:05:19 GMT+02:00	0.0	0	0	0	0

sh rmon capture
Buffer Control table is empty

sh rmon history task capture

Entry 1 is active
Monitors ifIndex.5 every 180 second(s)
Requested # of time intervals, ie buckets, is 50,
Sample # 102 began measuring at 1w1d
   Received 0 octets, 0 packets,
   0 broadcast and 0 multicast packets,
   0 undersized and 0 oversized packets,
   0 fragments and 0 jabbers,
   0 CRC alignment errors and 0 collisions.
   # of dropped packet events is 0
   Network utilization is estimated at 0

There's definitely traffic flowing on the interface:

sh int gi0/2

GigabitEthernet0/2 is up, line protocol is up
Hardware is BCM1250 Internal MAC, address is 000a.b8a2.a21a (bia 000a.b8a2.a21a)
MTU 1500 bytes, BW 60000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 52/255, rxload 229/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is RJ45
output flow-control is unsupported, input flow-control is XON
ARP type: ARPA, ARP Timeout 04:00:00
30 second input rate 53936000 bits/sec, 9679 packets/sec
30 second output rate 12437000 bits/sec, 7511 packets/sec

Joe Clarke · ‎03-12-2010

Assuming this interface has ifIndex 5, then this looks like a bug. RMON history should be supported on the 7200. I couldn't find an existing bug on this, but I was able to reproduce on 12.4(24)T.

a.tsemach · ‎03-12-2010

Thanks for the reply,

12.4(24)T looks like the latest software release, So upgrading to this image won't solve my problem?

Even realtime monitoring is yielding no result:


	Port Name	Util %	Dropped Events	CRC Errors	Collisions
1.	Gi0/2	0	0	0	0

Joe Clarke · ‎03-12-2010

Well, 15.0 is available for the 7200, but since I could not find a bug on this, I cannot say whether or not this problem is fixed. I suggest you open a TAC service request so this can be analyzed in more detail.

a.tsemach · ‎03-14-2010

I upgraded the IOS to ver 15:

System image file is "disk2:c7200-spservicesk9-mz.150-1.M.bin"

still no joy with history stats:

Entry 1 is active
Monitors ifIndex.5 every 180 second(s)
Requested # of time intervals, ie buckets, is 50,
Sample # 1 began measuring at 00:03:00
   Received 0 octets, 0 packets,
   0 broadcast and 0 multicast packets,
   0 undersized and 0 oversized packets,
   0 fragments and 0 jabbers,
   0 CRC alignment errors and 0 collisions.
   # of dropped packet events is 0
   Network utilization is estimated at 0
Sample # 2 began measuring at 00:06:00
   Received 0 octets, 0 packets,
   0 broadcast and 0 multicast packets,
   0 undersized and 0 oversized packets,
   0 fragments and 0 jabbers,
   0 CRC alignment errors and 0 collisions.
   # of dropped packet events is 0
   Network utilization is estimated at 0Buffer Control table is empty

I guess next step is TAC