From: Shine Joseph (shinepjoseph@iprimus.com.au)
Date: Mon Mar 10 2008 - 17:03:11 ARST
I think you are asked to use the interface command 'rmon collection stats
(index)". Please see below an example.
SW1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
SW1(config)#int f0/14
SW1(config-if)#rmon coll stats 1
SW1(config-if)#do sh rmon stat
Collection 1 on FastEthernet0/14 is active, and owned by monitor,
Monitors ifIndex.22 which has
Received 153962 octets, 1874 packets,
0 broadcast and 1771 multicast packets,
0 undersized and 0 oversized packets,
0 fragments and 0 jabbers,
0 CRC alignment errors and 0 collisions.
# of dropped packet events (due to lack of resources): 0
# of packets received of length (in octets):
64: 292, 65-127: 1537, 128-255: 0,
256-511: 45, 512-1023: 0, 1024-1518:0
I am wondering, how will you limit the rmon only for few interfaces, if I
want to?
HTH,
Shine
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of C
Chan
Sent: Tuesday, 11 March 2008 2:00 AM
To: Cisco certification
Subject: Track CRC error on 3550/3560 FE interface
Hi all experts,
I am using cisco 3550 and 3560 switches.
If I want to implement a proactive monitoring by examining the CRC error
counter of any FE interface, how can I do that?
The only solution I think is to use "rmon alarm" and "rmon event' to issue a
log statement in syslog server and notify the NOC duty staff.
But, *how do I get the correct OID (eg ifEntry.x.x) of this object?* There
are too many MIB objects. I am not sure how to search.
Regards,
CH
SW_3560#s int fa0/1
FastEthernet0/1 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0017.94c0.5981 (bia 0017.94c0.5981)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:34, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
1 minute input rate 33000 bits/sec, 53 packets/sec
1 minute output rate 41000 bits/sec, 61 packets/sec
3721716809 packets input, 3349318567 bytes, 0 no buffer
Received 966426 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 89 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 526916 multicast, 0 pause input
0 input packets with dribble condition detected
101994607 packets output, 2082354208 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
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