08-18-2014 05:56 PM - edited 03-07-2019 08:26 PM
I have Catalyst 4900M as distribution level and several Catalyst 2960S-48FPS-L as access devices.
I am going to use "WS-X4908-10GE 8 Port 10 Gigabit Module Switch"
With CVR-X2-SFP10G converter module I can get 10Gig on optical ports from Catalyst 4900M side, but Catalyst 2960S-48FPS-L support only 1 Gig optical standard on their SFP ports. Will it work (optical 10Gig<->1Gig) or any other suggestions?
Solved! Go to Solution.
08-18-2014 10:05 PM
You've got an X2 port, don't you? If you do, then why don't you purchase a TwinGig converter.
The Cisco TwinGig Converter Module (below) converts a single 10 Gigabit Ethernet X2 interface into two Gigabit Ethernet port slots that can be populated with SFP optics, enabling customers to use Gigabit Ethernet SFPs on the same card in combination with 10 Gigabit Ethernet X2 optics.
08-18-2014 07:31 PM
Will it work (optical 10Gig<->1Gig) or any other suggestions?
Cisco SFP/SFP+ only work at single speed. Catalyst 2960S-48FPD supports SFP+.
08-18-2014 08:11 PM
yes, I saw that Catalyst 2960S-48FPD supports SFP+, but I am restricted with a certain list, where there is no such model.
Maybe other switch modules/converters etc can be used?
"X2-10GB-SR Transceiver Module" or other type of modules for 4900M can be used for interconnecting with Catalyst 2960S-48FPS-L ?
08-18-2014 08:14 PM
"X2-10GB-SR Transceiver Module" or other type of modules for 4900M can be used for interconnecting with Catalyst 2960S-48FPS-L ?
No you can't.
08-18-2014 09:13 PM
ok, then seems I should choose another model instead of 4900M to be able to connect Catalyst 2960S-48FPS-L via optical links ...
Or other ideas?
08-18-2014 10:05 PM
You've got an X2 port, don't you? If you do, then why don't you purchase a TwinGig converter.
The Cisco TwinGig Converter Module (below) converts a single 10 Gigabit Ethernet X2 interface into two Gigabit Ethernet port slots that can be populated with SFP optics, enabling customers to use Gigabit Ethernet SFPs on the same card in combination with 10 Gigabit Ethernet X2 optics.
08-18-2014 11:19 PM
Good option!
But I cannot find whether it is compatible with 4900M device
08-18-2014 11:24 PM
yes, supports:
http://www.cisco.com/c/dam/en/us/products/collateral/switches/catalyst-4900-series-switches/AAG_Cat_4900M.pdf
but it seems only 4 of 8 available ports can be filled with TwinGigs.
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