Ya know..... that really sux that Cisco would abandon ISL. Not because it's
"the best" but alot of people have built networks that utilize ISL because
it is better than Dot1Q, and not giving those people a graceful way to
change is really low down.........
That's what happens when you trust proprietary Cisco standards, EVEN IF
they're "better"....... Hope they don't drop support for HSRP.......
"Rik Guyler" wrote in message
news:[EMAIL PROTECTED]...
> Hmmm...if you're not going to trunk VLANs between the 2, why setup
trunking
> at all? By adding the trunking, you will incur additional overhead that's
> just not necessary unless needed.
>
> ISL is Cisco proprietary. However, they have tweaked Dot1Q and are now
> moving away from ISL. Some of the newer boxes (Cat 4K for instance) don't
> support ISL with the latest CatOS.
>
> If you do have to setup trunking, I would use Dot1Q. I don't know what
you
> mean by a "cross connect to communicate between the two networks". Do you
> have seperate VLANs or Layer 3 subnets in place? If so, then you will
also
> need some form of routing in place. Otherwise, I wouldn't setup any
> trunking and just connect them!
>
> Rik
>
> -----Original Message-----
> From: SH Wesson [mailto:[EMAIL PROTECTED]]
> Sent: Monday, May 28, 2001 1:03 PM
> To: [EMAIL PROTECTED]
> Subject: trunking [7:6123]
>
>
> My environment is currently running Cabletron equipment that has trunking
> set to 802.1q. I'm putting in a new Catalyst 6500 switch and will be
tieing
>
> that into the Cabletron network. My question is, since I'm not going to
> trunk between the two but just to have a cross connect to communicate
> between the two networks, should I be using ISL trunking on the Cisco
switch
>
> or should I be using 802.1q so that it is compatible with the Cabletron
> network. In addition, if I do use 802.1q trunking, will that mess up the
> Cabltron side. Thanks.
>
>
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