[Gllug] Buying a switch (a sort of repost/recap on an old thread)

[Jasper Wallace]

On Mon, 8 Feb 2010, James Hawtin wrote:

> On Mon, Feb 08, 2010 at 01:22:42PM +0000, sean wrote:

> Don't forget a Gigabit interface is full duplex, so a gigabit of input can
> be matched with a gigabit output, most peoples use is async in terms of
> bandwidth so having only on nic isn't really a problem. Current drivers in
> linux also supports jumbo packets, so you don't have any pesky problems with
> MTU and it needing to be reduced by 4 bytes to fit the vlan tagging.

Actually this is a myth - the vlan spec increases the maximum ethernet
packet size by 4, so the mtu dosn't need change.

You only need to change it if your trying to send tagged packets to older
ethernet kit thats dosn't support the spec, but thats very rarely a problem
since you just send untagged packets to them instead...

-- 
[http://pointless.net/]                                   [0x2ECA0975]
-- 
Gllug mailing list  -  Gllug at gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug