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amjadkhan1920
Beginner

hanging and drops

dear all,

 

please need you attention i have 2960 switch and connected with router with UTP distance is approximately 60 to 70 meter before it was working fine now i try to ping from l2 switch to router i facing drops and the switch seems like hanging while  there is no crc no counter at interface   below is the detils

 

ER2-Gate2-SW3#sho interfaces gigabitEthernet 1/0/23
GigabitEthernet1/0/23 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is b07d.474d.da17 (bia b07d.474d.da17)
MTU 1500 bytes, BW 100000 Kbit/sec, 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 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, 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)
30 second input rate 5000 bits/sec, 7 packets/sec
30 second output rate 100000 bits/sec, 99 packets/sec
626973 packets input, 151656673 bytes, 0 no buffer
Received 117173 broadcasts (99723 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 99723 multicast, 0 pause input
0 input packets with dribble condition detected
7615744 packets output, 1000819574 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
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

4 REPLIES 4
Seb Rupik
VIP Advisor

Hi there,

What do the interface stats for the interface on the other end of the cable look like?

 

cheers,

Seb.


HUK_DIAFAA#sho int fastEthernet 1
FastEthernet1 is up, line protocol is up
Hardware is Fast Ethernet, address is 885a.92ef.4565 (bia 885a.92ef.4565)
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 242/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:08, output never, output hang never
Last clearing of "show interface" counters 00:02:05
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 71000 bits/sec, 79 packets/sec
5 minute output rate 5000 bits/sec, 6 packets/sec
9450 packets input, 1124892 bytes, 0 no buffer
Received 3197 broadcasts (147 multicasts)
0 runts, 0 giants, 0 throttles
501 input errors, 501 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
1075 packets output, 113524 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
4 unknown protocol drops
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

That is a high number of CRC errors for 9450 packets received!

 

Have you tried changing the UTP cable?

 

 

dear thanks let me change the cable i sweep the ports only