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Cisco 2924xl Switch will not link after told to trunk

Hello,

I have a couple of Cisco 2924 switches that when I told to enable trunking on the fa 1/1 port creating a trunk to my 5505 they stop responding. Any ideas?

Thanks in advance, Steve
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sroberts250
Asked:
sroberts250
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3 Solutions
 
from_expCommented:

you have also to configure trunking on 5505, when you enable trunking on 2924.
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sroberts250Author Commented:
I did that.

First I told the 2924 to trunk with this command:
(config) int fa 1/1
(config) switchport mode trunk

Then on the 5505
(config) set trunk 4/2 on desirable

Then the 2924 would become unreachable and the port fa 1/1 on the 2924 would be blinking between green and yellow.

I have two other 2924 that trunked without any problems.

Im confused on this one.
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anantshahCommented:
Are there any errors in the log of 2924 or the 5505?
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from_expCommented:
please take a look about how to configure 5505 trunking here:
http://www.cisco.com/en/US/docs/security/asa/asa72/configuration/guide/int5505.pdf
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