Ethernet Port Setting on LAP

Answered Question
Aug 27th, 2008
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Is there any way to set the speed and duplex on the Ethernet port of a Lightweight Access Point?

Correct Answer by Scott Fella about 8 years 10 months ago

For some odd reason, you can't. Why... I have no idea. It would be a nice feature to have. Oh... don't forget to put the ap name on the end of the command.


(Cisco Controller) >config ap ethernet duplex auto speed auto AP1


Here is a link to why CDP isn't supported.


http://www.cisco.com/en/US/docs/wireless/controller/5.1/configuration/guide/c51ccfg.html#wp1134555


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Scott Fella Wed, 08/27/2008 - 16:00
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Yes.... from the CLI of the WLC the LAP is associated to run the following command:


config ap ethernet duplex speed


Hope this is what you are looking for.

srgaskill1 Wed, 08/27/2008 - 16:48
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Yes this is what I was looking for and thank you. Are these commands in the Config guide?

I was also wondering if there was a command to do this via the console of the LAP. Problem is that our Switch ports are set to 100/Full and the LAP is set to Auto. When they negotiate the LAP comes up at 100 Half and the LAP and Switch both generate Duplex Mismatch errors.

I guess there are things that can be done via the command line that are not in the GUI.

Scott Fella Wed, 08/27/2008 - 16:51
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You are right..... the gui doesn't have everything that the CLI has. Also, when you hard code the port, make sure that the errors on the switch clears up. There are times when setting the duplex and speed causes issues. If you do get errors still... time to set the switchport to auto:)


I couldn't find this in the command reference guide. I'm running 4.2.130


srgaskill1 Wed, 08/27/2008 - 17:03
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Can you tell me what version this shows up in? I am looking at the command reference guides for 4.0, 4.2 and 5.0 and it is not in there.

Scott Fella Wed, 08/27/2008 - 17:04
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I'm running 4.2.130.... I guess this isn't in th e command reference guide.... just checked :(

srgaskill1 Wed, 08/27/2008 - 17:11
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Thanks again, I'll dig around in the controller I have.

I am running 4.2.130 as well on a pair of WISMs.

Any idea why you can't configure CDP on a WISM?

Correct Answer
Scott Fella Wed, 08/27/2008 - 17:14
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For some odd reason, you can't. Why... I have no idea. It would be a nice feature to have. Oh... don't forget to put the ap name on the end of the command.


(Cisco Controller) >config ap ethernet duplex auto speed auto AP1


Here is a link to why CDP isn't supported.


http://www.cisco.com/en/US/docs/wireless/controller/5.1/configuration/guide/c51ccfg.html#wp1134555


Scott Fella Wed, 08/27/2008 - 17:17
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From the doc I just posted above:


Note CDP is not supported on the controllers that are integrated into Cisco switches and routers, including those in the Catalyst 3750G Integrated Wireless LAN Controller Switch, the Cisco WiSM, and the Cisco 28/37/38xx Series Integrated Services Router. However, you can use the show ap cdp neighbors [detail] {Cisco_AP | all} command on these controllers in order to see the list of CDP neighbors for the access points that are connected to the controller.



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