[c-nsp] Cisco 4900M onboard X2 and twingig convertors

[Ozgur Guler]

The 10GE baseboard ports and the 4 port half cards do not support the TwinGig converter. Only 8 port half cards can support the TwinGig converter.

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6021/ps9310/Data_Sheet_Cat_4900M.html
Check under Table 2.
This will show the Ports Using Cisco TwinGig Converter Module.

We started using media converters for fiber links as I did not want to waste a slot with the expensive 8port half card module.

Thanks
Ozgur
--- On Mon, 22/6/09, Sam Stickland <sam_mailinglists at spacething.org> wrote:

> From: Sam Stickland <sam_mailinglists at spacething.org>
> Subject: [c-nsp] Cisco 4900M onboard X2 and twingig convertors
> To: "Cisco-nsp" <cisco-nsp at puck.nether.net>
> Date: Monday, 22 June, 2009, 12:45 PM
> Hi,
> 
> Is anyone able to confirm whether the onboard X2 slots on
> the 4900M support the twin-gig modules?
> 
> Some of the documentation suggests they are only supported
> on the 8-Port (2:1) 10 Gigabit Ethernet (X2) Half Card, but
> I haven't seen any that definitively rules out there use on
> the onboard slots.
> 
> Thanks,
> 
> Sam
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