[nsp] more than 2 sites with Q-in-Q

[Temkin, David]

Keep in mind if you do "sdm prefer vlan" then you effectively change to
software switching for any routing you do on the box.

 

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of 
> tesinska-predstoleti at yahoo.com
> Sent: Friday, May 21, 2004 8:29 AM
> To: cisco-nsp at puck.nether.net
> Subject: Re: [nsp] more than 2 sites with Q-in-Q
> 
> --- Mikael Abrahamsson <swmike at swm.pp.se> wrote:
> > > your core. For three sites with 3 VLAN's this is not much of a 
> > > problem, but build a large number of sites on Q-in-Q 
> where the inner 
> > > VLAN's are not identically shared, and you will have a lot of 
> > > useless traffic on your links...
> > Noteworthy is that even with q-in-q you still carry all 
> your customers 
> > different MAC adresses, so pretty soon you're going to run 
> into that 
> > limitation of the 3550.
> 
>    one thing to add to this subject - using command "sdm prefer vlan"
> you can increase MAC addresses number to 12K.
> 
> http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/1211
> 9ea1/3550cr/cli2.htm#2752234
> 
> regards
> 
> 
> 
> =====
> 
> Andrzej Gab
> 
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> 

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