Re: 10G ethernet and 802.1q

TRILL is the way to go, so is the OTV. but it only builds upon 802.1q, and
does not replace it in any sense.
Whoever said that "the 802.1q...is old and does not support the high
bandwidth requirements for new services / applications." is a moron.
First of all, the sentence does not makes sense. TCP is really old, like 30
years old, but we are not in a hurry to replace it. OLD does not mean BAD.
Second, it does not mention why it does not support the high bandwidth.

What author may have meant, if he had any network experience, is that 802.1D
(notice how .1D is not .1Q) is a protocol with many shortcomings, including
slow convergence and absence of load balancing, which has to be provided by
other standards, like 802.1AX, PVST, etc. And that routing will be used.

But 802.1Q has no equal at this time. If you just want to use routing then
that's fine, but it is substantially different than L2 service enablement
which 802.1Q provides.

P.S. forget ISL.

On Wed, Apr 1, 2009 at 9:57 AM, Evan Weston <evan_weston_at_hotmail.com> wrote:

> I went to a Cisco event yesterday and one of the presenters mentioned TRILL
> https://cisco.hosted.jivesoftware.com/message/2747 thought it was
> interesting...
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Shahid Ansari
> Sent: Wednesday, 1 April 2009 4:54 PM
> To: Hash Aminu
> Cc: Reza Toghraee; ccielab_at_groupstudy.com
> Subject: Re: 10G ethernet and 802.1q
>
> Hash,
>
> worked with ISP and havent used ISL ,dot1q is best to go(q in q tunnel)
> 1q also a standard across different vendors and guaranteed to work between
> different vendor equipments whereas ISL fails :)
> regarding the VLANS ,who want to create more than 1K/4k Vlans?
>
> Thanks
> Shahid
>
> On Tue, Mar 31, 2009 at 3:11 PM, Hash Aminu <hashng_at_gmail.com> wrote:
>
> > Reza/Shahid,
> >
> > while i will agree with you that most of them are implying to cisco
> > solution, I am aware of using 802.1q in cisco Gears can be less scalable
> as
> > the # of VLANs grows..hence you will run out of virtual ports (total # of
> > Vlans passing thru a .1q trunk X the number of ports)..mostly the limits
> is
> > 6k per any line card.
> >
> > HTH
> >
> > Hash
>
>
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