10-29-2014 05:47 AM - edited 03-07-2019 09:17 PM
I am using Cisco Aironet AIR-LAP1142N-E-K9 on my network and it's connected to Gigabitethernet port on my 3750 switch, but for some eason it's neotiating only 100Mbps all time even when I run speed auto from both sides. If I run 1000Mbps from the switch and the AP, I loose connectivity. Please find below details:
-------------------------
Device ID: BTaS-RYD-5F-AP02
Entry address(es):
IP address: 192.168.15.252
Platform: cisco AIR-LAP1142N-E-K9 , Capabilities: Trans-Bridge IGMP
Interface: GigabitEthernet1/0/14, Port ID (outgoing port): GigabitEthernet0
Holdtime : 138 sec
Version :
Cisco IOS Software, C1140 Software (C1140-K9W7-M), Version 12.4(21a)JA1, RELEASE SOFTWARE (fc1)
Output from the switch interface:
Port Name Status Vlan Duplex Speed Type
Gi1/0/14 ***BTAS-7flr-AP03* connected trunk full a-100 10/100/1000BaseTX
Yasir
10-29-2014 02:55 PM
Run a TDR on your switch. I am suspecting you've got a faulty cable.
Do the following commands:
1. Command: test cable tdr interface Gi1/0/14;
2. Wait for approximately 5 to 7 seconds to run the test;
3. Command: sh cable tdr interface Gi1/0/14; and
4. Post the output to #3.
10-30-2014 06:21 AM
Please find below:
BTaS-7F-SW-2#test cable-diagnostics tdr interface gi
BTaS-7F-SW-2#test cable-diagnostics tdr interface gigabitEthernet 1/0/14
Link state may be affected during TDR test
TDR test started on interface Gi1/0/14
A TDR test can take a few seconds to run on an interface
Use 'show cable-diagnostics tdr' to read the TDR results.
BTaS-7F-SW-2#
BTaS-7F-SW-2#
BTaS-7F-SW-2#
BTaS-7F-SW-2#show cable-diagnostics tdr ?
interface Specify an interface for result
BTaS-7F-SW-2#show cable-diagnostics tdr int gi
BTaS-7F-SW-2#show cable-diagnostics tdr int gigabitEthernet 1/0/14
TDR test last run on: March 10 04:38:17
Interface Speed Local pair Pair length Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi1/0/14 100M Pair A N/A N/A Not Completed
Pair B N/A N/A Not Completed
Pair C N/A N/A Not Completed
Pair D N/A N/A Not Completed
BTaS-7F-SW-2#
10-30-2014 08:40 PM
Link state may be affected during TDR test
Uhhhhh ... what ancient IOS are you running????
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