C3750G-48TS-only ports 1-8 working---all others dead

Unanswered Question
Nov 16th, 2009

I have already tried rebooting it and updating to the latest ios (12.2(52)SE - IP-BASE) but I still have access to only the first 8 ports. I have 16 servers connected to these dead ports (all running at 1000 in Auto mode). At least 24 of these dead ports have functioning equipment attached.


Thanks

Eric

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Overall Rating: 4 (1 ratings)
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iyde Mon, 11/16/2009 - 11:00

Hi Eric,

The only thing that I can think of is that the hardware has been damaged in some way. It sounds like some ASICs have become defective, as often 8 ports are controlled by one ASIC.

But I do not have any definitive answer.

Did anything special happen when these ports became unresponsive?

HTH, Ingolf

Cire71992_2 Mon, 11/16/2009 - 11:19

These are my DR servers. The data center did some "testing and splicing unused fibers" and during that timeframe I lost 40 ports, however, the firewall and vpn are still up along with my APC Remote Controlled power outlets so I was able to telnet into the switch and reset power with the APC but to no avail. I have not done a reset to factory defaults yet ...


Eric

glen.grant Mon, 11/16/2009 - 11:03

Usually it will tell you in the log if you have rebooted if there is a hardware error . You can try a "show diag result" and see if the ports show as faulty . If so it's RMA time. What do they look like when you do a show int status " ?

Cire71992_2 Mon, 11/16/2009 - 11:49


Switch301a>show diagnostic result switch 1


Switch 1: SerialNo : Fxxxxxxxxxxxx


Overall diagnostic result: PASS


Test results: (. = Pass, F = Fail, U = Untested)


1) TestPortAsicStackPortLoopback ---> .

2) TestPortAsicLoopback ------------> .

3) TestPortAsicCam -----------------> .

4) TestPortAsicRingLoopback --------> .

5) TestMicRingLoopback -------------> .

6) TestPortAsicMem -----------------> .


Switch301a>show int status


Port Name Status Vlan Duplex Speed Type

Gi1/0/1 connected 1 a-full a-100 10/100/1000BaseTX

Gi1/0/2 connected 1 a-full a-100 10/100/1000BaseTX

Gi1/0/3 connected 1 a-full a-100 10/100/1000BaseTX

Gi1/0/4 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/5 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/6 connected 1 a-half a-100 10/100/1000BaseTX

Gi1/0/7 connected 1 a-full a-100 10/100/1000BaseTX

Gi1/0/8 connected 1 a-full a-100 10/100/1000BaseTX

Gi1/0/9 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/10 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/11 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/12 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/13 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/14 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/15 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/16 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/17 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/18 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/19 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/20 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/21 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/22 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/23 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/24 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/25 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/26 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/27 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/28

....

... truncated ....


Gi1/0/45 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/46 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/47 notconnect 1 auto auto 10/100/1000BaseTX

Gi1/0/48 notconnect 1 auto 1000 10/100/1000BaseTX


Port Name Status Vlan Duplex Speed Type

Gi1/0/49 notconnect 1 auto auto Not Present

Gi1/0/50 notconnect 1 auto auto Not Present

Gi1/0/51 notconnect 1 auto auto Not Present

Gi1/0/52 notconnect 1 auto auto Not Present

Switch301a>


Thanks, Eric

Leo Laohoo Mon, 11/16/2009 - 13:57

Hi Eric,

When dealing with fibre, I get nervous when someone decides to do some splicing near the live connection. Can you check if the fibres were not terminated incorrectly or left spliced?

Cire71992_2 Mon, 11/16/2009 - 14:34

All cable work was done outside of our locked rack cabinet. This data center has hundreds of racks. There is only one feed into our cabinet which goes to a switch> firewall> cisco3750. The switch and firewall are both functioning fine. Only the Cisco lost 40 ports.


Eric

glen.grant Tue, 11/17/2009 - 04:21

It is certainly suspect when it does not detect any hardware issue and all the ports look normal just in a notconnect state . Take a live good known device and move it to one of the suspect ports and see if it comes up.

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