Cisco WS-C4507R Troubleshooting Manual page 26
Troubleshooting guide
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Also See for WS-C4507R:
- Configuration manual (612 pages) ,
- Command reference manual (578 pages)
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RST-3508
9805_05_2004_c2
RST-3508
9805_05_2004_c2
© 2004 Cisco Systems, Inc. All rights reserved. Printed in USA.
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Useful Port Troubleshooting Commands
for Performance and Connectivity
cat4003> (enable)
sh mac 2/1
Port
Rcv-Unicast
-------- -------------------- -------------------- --------------------
2/1
100999222
Port
Xmit-Unicast
-------- -------------------- -------------------- --------------------
2/1
51713414
Port
Rcv-Octet
-------- -------------------- --------------------
2/1
132521131606
MAC
Dely-Exced MTU-Exced
-------- ---------- ---------- ---------- ---------- ---------- ----------
2/1
0
Last-Time-Cleared
--------------------------
Thu Mar 20 2003, 12:09:25
Useful to Verify Traffic Flow Through an Interface
In-discards:
Traffic on a trunk VLAN but no switchports in the VLAN or if trunk is blocking
•
In-lost:
Packets dropped in the Receive Path; Rx-No-Packet Buffer Avail, Rx Crc Error, Rx Fragments, etc
•
Out-lost:
Output buffer is full...oversubscription of the output port
•
Lrn-discard:
Not able to learn a MAC address due to CAM table full or hash index collision
•
© 2004 Cisco Systems, Inc. All rights reserved.
Useful Port Troubleshooting Commands
for Performance
cat4003> (enable)
show port counters 2/1
Port
Align-Err
FCS-Err
----- ---------- ---------- ---------- ---------- ---------
2/1
-
Port
Single-Col Multi-Coll Late-Coll
----- ---------- ---------- ---------- ---------- --------- --------- ---------
2/1
0
Last-Time-Cleared
--------------------------
Thu Mar 20 2003, 12:09:25
Error Rate Should Be Less Than 3% of Traffic
FCS_err:
Due to bad CRC...faulty NIC or cable
•
Xmit-err:
Internal transmit buffer is full; oversubscription
•
Rcv-err:
Rx buffer is full
•
Late
collisions:
Duplex mismatch
•
© 2004 Cisco Systems, Inc. All rights reserved.
( CAT OS)
Rcv-Multicast
Rcv-Broadcast
91857174
Xmit-Multicast
Xmit-Broadcast
26520362
Xmit-Octet
96814952585
In-Discard Lrn-Discrd In-Lost
0
0
0
87
(CAT OS)
Xmit-Err
Rcv-Err
UnderSize
2
419824
2
Excess-Col Carri-Sen Runts
0
20215
0
460433
32
Out-Lost
419821
51
51
51
0
Giants
1
0
0
52
52
52
- Quick Links:
- Cpu Queues
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