WS-C4948-10GE TwinX SFP Support

Answered Question
Mar 18th, 2010
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Hi,


Can anyone confirm whether or not the WS-C4948-10GE switch supports the TwinX converter modules to allow the use of the 1000Base-X SFPs ?


The data sheets state clearly that only the X2 optics are supported for 10GE fibre uplinks, yet the release notes for version 12.2(50)SG state that the new hardware feature, "SFP+ using the X2 hole adapter" is supported.


Any help is much appreciated.


Chris.

Correct Answer by Giuseppe Larosa about 7 years 1 week ago

Hello Chris,


it looks like unsupported in the datasheet


http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6021/ps6230/product_data_sheet0900aecd80246552.html


see table-2 at the line "TwinG support" it reports No


configuration guide that is shared with C4500 says:


http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/52sg/configuration/guide/sw_int.html#wp1128472


To use an SFP+ in an X2 port to obtain 10-Gigabit  Ethernet bandwidth, the Catalyst 4500 series switch supports OneX  Convertor modules. When you plug a OneX Converter module into an X2  port, it converts the X2 port into an SFP+ port into which you can plug  in an SFP+. An SFP+ in a OneX Convertor module provides the same  functionality as an X2 and maintains the same port numbering.


This feature is supported on Supervisor Engine 6-E  X2 ports as well as the WS-X4606-10GE (or WS-X4606-X2-E),  WS-X4908-10GE, WS-X4904-10GE, and WS-C4900M chassis.


It makes sense for a data center switch like this to support only 10GE uplinks



Hope to help

Giuseppe

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Correct Answer
Giuseppe Larosa Thu, 03/18/2010 - 05:39
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Hello Chris,


it looks like unsupported in the datasheet


http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6021/ps6230/product_data_sheet0900aecd80246552.html


see table-2 at the line "TwinG support" it reports No


configuration guide that is shared with C4500 says:


http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/52sg/configuration/guide/sw_int.html#wp1128472


To use an SFP+ in an X2 port to obtain 10-Gigabit  Ethernet bandwidth, the Catalyst 4500 series switch supports OneX  Convertor modules. When you plug a OneX Converter module into an X2  port, it converts the X2 port into an SFP+ port into which you can plug  in an SFP+. An SFP+ in a OneX Convertor module provides the same  functionality as an X2 and maintains the same port numbering.


This feature is supported on Supervisor Engine 6-E  X2 ports as well as the WS-X4606-10GE (or WS-X4606-X2-E),  WS-X4908-10GE, WS-X4904-10GE, and WS-C4900M chassis.


It makes sense for a data center switch like this to support only 10GE uplinks



Hope to help

Giuseppe

cbeswick Thu, 03/18/2010 - 06:13
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Thanks Giuseppe. I missed the line in the table.

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