Operation State Down, Cause=Max Retrasmission

Unanswered Question
Nov 17th, 2008

Hello,


My setup:


WLC 4402

1131 Access points


Problem: Sometimes AP radios are shutdown


Trap Logs show this:


AP's Interface:0(802.11a) Operation State Down: Base Radio MAC:00:21:55:ac:29:40 Cause=Max Retrasmission


AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:00:21:55:ac:29:40 Cause=Max Retrasmission


what's cause and how to sovle this problem?


TKS!

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
l.mourits Tue, 11/18/2008 - 03:46

Hi,


Not sure if this goes for you, but I've seen similar messages when I had H-REAP configured LAPs controlled by a remote controller, where the round trip delay exceeded the 120ms (as mentioned in the design guide 120ms is the max RTD between LAP and Controller).


HTH,

Leo

libra_lin Tue, 11/18/2008 - 18:03


Yes, our problem same with you. could you tell me how to solve this problem. TKS!

l.mourits Wed, 11/19/2008 - 00:21

I had to install a controller in a location closer by, with a better round trip delay between controller and access-point to get this resolved.


After I installed the controller with less then 120ms RTD to the APs, the problem was gone.


HTH,

Leo

Actions

This Discussion

 

 

Trending Topics: Other Wireless Mobility

client could not be authenticated
Network Analysis Module (NAM) Products
Cisco 6500 nam
reason 440 driver failure
Cisco password cracker
Cisco Wireless mode