© 2004 Cisco Systems, Inc. All rights reserved. Printed in USA.
Presentation_ID.scr
535353
© 2004 Cisco Systems, Inc. All rights reserved.
RST-3508
9805_05_2004_c2
Port Troubleshooting Commands
for Connectivity and Performance
cat4500#sh int gig 4/7 (IOS)
GigabitEthernet4/7 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet Port, address is 0009.e845.5f3f (bia 0009.e845.5f3f)
Internet address is 10.17.1.1/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 12/255, rxload 6/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is auto, media type is SX
output flow-control is off, input flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:46:11, output never, output hang never
Last clearing of "show interface" counters 00:00:59
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1234242
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 48766000 bits/sec, 82367 packets/sec
L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes
L3 out Switched: ucast: 20000000 pkt, 1120000000 bytes - mcast: 0 pkt, 0 bytes
0 packets input, 37973544 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicast)
0 runts, 0 giants, 0 throttles
513156 input errors, 513156 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
18765774 packets output, 1388667646 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Input Errors: CRC; Alignment Errors
Oversubscription
If Down or Faulty
Check Physical
Connection
Sh Diagnostic
Result Module #
Is Traffic Flowing
545454
© 2004 Cisco Systems, Inc. All rights reserved.
RST-3508
9805_05_2004_c2
Port Troubleshooting Commands
for Performance
cat4500#sh int gig 4/7 counters detail
(truncated)
Port InBytes InUcastPkts InMcastPkts InBcastPkts
Gi4/7 146 1 1 0
Port OutBytes OutUcastPkts OutMcastPkts OutBcastPkts
Gi4/7 1078309438 14563961 5579 5
Port InPkts 64 OutPkts 64 InPkts 65-127 OutPkts 65-127
Gi4/7 1 1 1 14569125
Port InPkts 128-255 OutPkts 128-255 InPkts 256-511 OutPkts 256-511
Gi4/7 0 0 0 415
Port InPkts 512-1023 OutPkts 512-1023
Gi4/7 0 4
Port InPkts 1024-1522 OutPkts 1024-1522 InPkts 1523-1600 OutPkts 1523-1600
Gi4/7 0 0 0 0
Port Tx-Bytes-Queue-1 Tx-Bytes-Queue-2 Tx-Bytes-Queue-3 Tx-Bytes-Queue-4
Gi4/7 783454686 0 294281044 573772
Port Tx-Drops-Queue-1 Tx-Drops-Queue-2 Tx-Drops-Queue-3 Tx-Drops-Queue-4
Gi4/7 340119 0 43128 0
Port Dbl-Drops-Queue-1 Dbl-Drops-Queue-2 Dbl-Drops-Queue-3 Dbl-Drops-Queue-4
Gi4/7 0 0 0 0
Port Rx-No-Pkt-Buff RxPauseFrames TxPauseFrames PauseFramesDrop
Gi4/7 0 35648 0 0
Which Q’s Are
Dropping
Flow
Control
Frames
Packet Size
Distribution
Lots of Small
Packets: Could
Be DoS Attack
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