09-08-2008 11:17 AM - edited 03-06-2019 01:15 AM
any one know why my 2900xl wont take the encapsulation dot1Q command it is using version 12.3
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09-08-2008 11:23 AM
Hello Shane,
some low end switches support only ISL and others support only 802.1Q. Try to use ISL on both ends of the links.
For this reason some switches don't even accept the command switchport trunk encapsulation with any parameter because there is no choice
Hope to help
Giuseppe
09-08-2008 11:23 AM
Hello Shane,
some low end switches support only ISL and others support only 802.1Q. Try to use ISL on both ends of the links.
For this reason some switches don't even accept the command switchport trunk encapsulation with any parameter because there is no choice
Hope to help
Giuseppe
09-08-2008 12:13 PM
Hi,
are you using these commands?
switchport mode trunk
switchport trunk encapsulation dot1q
2900xl does not have 12.3 version.
09-08-2008 05:24 PM
It will only support dot1q. Therefore there is no need to specify your encapsulation.
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