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Cabling question

Junaid Shah
Level 1
Level 1

Hello                  

I have connected a cisco 3750 switch with cisco 2951 router. I have connected them through straight cable. Do i need to use cross cable ? and below are the results of tdr test. Does this indicate that cable is faulty and needs to be changed or i have to change cable type at all. Thanks in advance

PAK3750-1#show cable-diagnostics tdr inter gi 1/0/16
TDR test last run on: October 03 14:33:57

Interface Speed Local pair Pair length        Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
  100M      Pair A     2    +/- 4  meters Pair A      Normal
                Pair B     2    +/- 4  meters Pair B      Normal
                Pair C     4    +/- 4  meters Pair C      Short
                Pair D     4    +/- 4  meters Pair D       Short

1 Reply 1

Lei Tian
Cisco Employee
Cisco Employee

Hi,

Straight or crossover doesnt matter. The switch support auto MDIX. Yes, the cable is problem. You should see normal for all pair.

HTH,

Lei Tian

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