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3570G Stack issues

nathan@hbni.net
Level 1
Level 1

Hi 

 

   I`m fairly new to all of this and I need a bit of help with a problem that I ran into recently..

I have 2 3750G Cisco switches in a Stack that I`m using as Layer 2 switches for distribution purposes. The problem that I`m having is that anything that I`m plugging into switch 2 (which is the stack member) seems to be having issues as far as connectivity is concerned. I have 2 3560s that are up linked to the stack member and both of those cant be discovered by Cisco Network Assistant. Also my AP are dissociating and associating and when I plug into the Stack master these problems go away, so I`m assuming it has something to do with the stack configuration..

 

Any help would be appreciated 

Thanks 

8 Replies 8

Leo Laohoo
Hall of Fame
Hall of Fame

nathan@hbni.net wrote:

The problem that I`m having is that anything that I`m plugging into switch 2 (which is the stack member) seems to be having issues as far as connectivity is concerned.


Do the following: 

1.  Command:  test cable tdr int <PORT>;

2.  Wait for about 5 to 7 seconds for the process to run it's course; 

3.  Command:  sh cable tdr int <PORT>; 

4.  Post the complete output to #3.

I guess I should have mention that both of these switches are Fiber switches and the TDR command only works for ethernet ports 

Well, I didn't know they were fibre optic.
So let's try something else. Post the complete output to the command "sh interface <PORT> controll".

Here int the output for the show interface G 2/0/1. Thats on the stack member on a port that one of the 3560s is connected to..

 

GigabitEthernet2/0/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0011.5c5b.ed81 (bia 0011.5c5b.ed81)
Description: Trunk to Kitchen
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX SFP
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:58, output 00:00:50, 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)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
7100948 packets input, 935383004 bytes, 0 no buffer
Received 3480388 broadcasts (3424406 multicasts)
0 runts, 0 giants, 0 throttles
560 input errors, 2 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 3424406 multicast, 0 pause input
0 input packets with dribble condition detected
10389809 packets output, 5958888688 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


nathan@hbni.net wrote:

560 input errors, 2 CRC, 0 frame, 0 overrun, 0 ignored


Can I see the output to the command "sh interface <PORT> controll" from the 3560 side?

Below is the output from the 3560 interface 

 

GigabitEthernet0/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0022.bd6f.0f19 (bia 0022.bd6f.0f19)
Description: trunk to eshop
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX SFP
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)
5 minute input rate 9000 bits/sec, 8 packets/sec
5 minute output rate 2000 bits/sec, 4 packets/sec
1735229 packets input, 445303594 bytes, 0 no buffer
Received 432395 broadcasts (285891 multicasts)
0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 285891 multicast, 0 pause input
0 input packets with dribble condition detected
1468104 packets output, 188100340 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

What are the uptimes of the two switches?

The up time on the 3750 stack is 12 days. 

while the Uptime on the other one is just a couple of days 

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