Will 10GTBASE card be able to communicate with a 1Gbps switch?

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centarforumi

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#154066 17-Oct-2014 00:39

Hello everyone,

I have a possibly stupid question: Will 10GTBASE card (10Gbps) be able to communicate with a 1Gbps switch? I want to buy a new server, and I want to prepare for 10GbE network, but I'm not sure if it's really backward compatibile?

Thanks!

hio77

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Lizard Networks

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#1156467 17-Oct-2014 02:55

10GBASE-T is simply an Ethernet standard, it should happily negotiate down to 1G.

if your concerned, look at the Ethernet card your buying, it should say it supports 1000BASE-T, 1gbit or something to that respect.

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centarforumi

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#1158164 20-Oct-2014 02:52

Thank you! :)

webwat

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#1162094 25-Oct-2014 18:36

10GbaseT devices will fall back to the lowest speed supported by whatever is at the other end of the link. Other types of 10G ethernet such as fibre do not. 10GbaseT does have a higher latency than 1000baseT for small packets and requires better cabling, so you may still be looking at other options depending on distance and what you are hosting on the server. For this reason many 10G switches and servers tend to come with SFP+ sockets as well as the RJ45.

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