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10.08.2007 at 09:33AM PDT, ID: 22879196
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7.6

Configure etherchanneled trunk with dot1q encapsulation on a cisco 2950 switch

Asked by fbrsupport in Network Design & Methodology, Network Switches & Hubs

Tags: , , , ,

Hello All,

I have a cisco 2950 series catalyst switch.  I setup port fa0/23 - 24 to be an ether-channel and a trunk, with the ether-channel being named Port-channel1.

I want to configure the trunk to use dot1q encapsulation.  So, under Port-channel1 configuration i try to enter the command "switchport trunk encapsulation dot1q", and it doesn't take.  In fact, here's what shows up when I use the help function:

Switch(config-if)#switchport trunk ?
  allowed  Set allowed VLAN characteristics when interface is in trunking mode
  native   Set trunking native characteristics when interface is in trunking mode
  pruning  Set pruning VLAN characteristics when interface is in trunking mode

Notice there is no "encapsulation" option.

So, can 2950's change encapsulatioin or do they always use ISL?  If so, how can I change it?

thanks,
Mark
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[+][-]10.08.2007 at 09:42AM PDT, ID: 20035223

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[+][-]10.08.2007 at 09:48AM PDT, ID: 20035265

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[+][-]10.08.2007 at 09:50AM PDT, ID: 20035286

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About this solution

Zones: Network Design & Methodology, Network Switches & Hubs
Tags: 2950, cisco, trunk, encapsulation, dot1q
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Solution Provided By: Galtar99
Participating Experts: 2
Solution Grade: A
 
 
[+][-]10.08.2007 at 09:52AM PDT, ID: 20035299

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[+][-]10.08.2007 at 10:11AM PDT, ID: 20035399

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[+][-]10.08.2007 at 10:15AM PDT, ID: 20035420

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[+][-]10.08.2007 at 10:33AM PDT, ID: 20035552

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