Cisco 2851

Unanswered Question
Mar 23rd, 2009
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I currently have a Cisco 2851 router running the following IOS

C2800NM-ADVIPSERVICESK9-M), Version 12.4(9)T

We have two additional HWIC-4ESW cards installed in the 2851 router.

The first card works ok as a layer 2 and 3 but the second card only works as a layer two device.

Can I replace the 2 HWIC-4ESW cards with a HWIC-9-D-ESW card and can all 9 ports used with different VLAN's and at layer 3?


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Kevin Brennan Mon, 03/23/2009 - 09:37
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Hi Jonathan,


I believe you will have to connect the two HWIC-4ESW cards with a cross-over cable to get them to work.


They are L2 devices only, there is no backplane connection between them.


The same applies to having two HWIC-9-D-ESW cards in the one chassis - you need to connect them externally.


I can't find this in a document, but I think I have read it in a Cisco doc before.


http://www.cisco.com/en/US/prod/collateral/routers/ps5853/product_data_sheet0900aecd8016bf0b_ps5855_Products_Data_Sheet.html


Hope this helps


Kevin



paolo bevilacqua Mon, 03/23/2009 - 10:46
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Yes, you can do that.

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