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layer-3 routing 2

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fluid11

IS-IT--Management
Jan 22, 2002
1,627
US
Can I set up Layer-3 routing on a 3500 series switch?

Thanks,
Chris
 
Unless you bought a layer 3 switch, you cannot route.
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Which switches do layer-3 routing?
 
When you buy the switch, you must specify that you want one with layer 3 capablilities. If you just bought a switch, more than likely, it does not have any routing hardware/software with it.

2948G-L3 is a routing switch. The CAT 55/6500s are layer 3 capable switches. There is probably a version of 3500 that has routing capabilities. You should probably call cisco to find out.
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The Catalyst 3550 supports layer 3, but the 3512, 3524, and 3548 do not.

 
Thanks.

On Cisco's website, if a switch supports layer-3 routing, will it specifically say it on the product overview page?

 
It will mention layer 3 functionality. In the new line up of Cisco switches, 3550 is the lowest model to support layer 3.
 
The old 3500XL series cannot do IP routing.

The new 3550's can come with either a standard image or an enhanced image. The enhanced one will do IP routing.

I think it might tell you which if you do a "show version" on the switch. I think it mentions something about layer 3 image. The other way to check is see if you can add an IP address to an interface. A default config of a switch with the layer 3 image has "no ip address" under every FastEthernet interface.

You can upgrade a layer two 3550 to a layer 3 one by upgrading the image. This entails an extra cost obviously.
 
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