Catalyst 4948 and 10 G fiber modules

[changjoe]

Hi guys,

I'm hoping a Cisco engineer can definitively answer this question (my boss is really, really upset with me) :

Can a Catalyst 4948 accommodate a 10 G SFP module? Or can they only accomodate 1 G SFPs?

There is another version of the Catalyst 4948, the "Catalyst 4948 10 Gigabit Ethernet". I am not referring to this variant model.

Thanks in advance,

   Joe

[devendrakarthik]

Hi Joe,

4948 can only support 1G(SFP) and 4948-10gig can support 10G(X2) uplinks which is the main difference between the models. Both have 10/100/1000 RJ45 ports. The uplinks are fixed.

HTH

Regards,

Karthik.

[changjoe]

Thank you, Karthik. I really appreciate this info. However, could a Cisco engineer please chime in as well? I need a definitive word from a Cisco representative.

[Leo Laohoo]

However, could a Cisco engineer please chime in as well? I need a definitive word from a Cisco representative.

Just in case a Cisco (pre-sales) engineer hasn't seen your post, you can also check this weblink.

http://www.cisco.com/en/US/products/ps6021/prod_models_comparison.html

[Matthew Blanshard · Accepted solution]

Per the datasheet on the 4948 (non-10g version) it only supports 1gb SFP's. 

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6021/product_data_sheet0900aecd8017a72e.html

The 4948E switch supports the 10gb SFP+ ports.  Here's a datasheet on the 4948E which has a direct comparsion of all 3 models:

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6021/ps10947/data_sheet_c78-598933.html

Look down at table 2 on the 2nd link for a comparsion of what supports what in 10gb.

-Matt

[changjoe]

Thank you so much Matthew (and Leo too )