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Re: 10GE TOR port buffers (was Re: 10G switch recommendaton)
From: Leo Bicknell <bicknell () ufp org>
Date: Fri, 27 Jan 2012 17:19:09 -0800
In a message written on Fri, Jan 27, 2012 at 04:00:36PM -0800, Joel jaeggli wrote:
And people who care have been using something other than a c6500 for years. it's a 15 year old architecture, and it's had a pretty good run, but it's 2012.
One of the frustrating things, which the c6500 embodies best, is that the chassis has had many generations of linecards. It came out in 1999, running CatOS, with a 32Gbps shared bus. It exists now as a IOS box with a 720Gbps bus, running distributed switching. While you can call both a 6500, they share little more than some sheet metal, fans, and copper traces on the backplane. Wisdom learned running CatOS on 1st generation cards flat out does not apply to current generation cards. And woe be the admin who mixes and matches generations of cards, there are a million different configurations and pitfalls. Cisco is not the only vendor, and the 6500 is not the only product with this problem. It makes conversation extremely difficult though, you can't say a "6500 has xyz property" without detailing a lot more about the config of the box. -- Leo Bicknell - bicknell () ufp org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/
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Current thread:
- Re: pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton)), (continued)
- Re: pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton)) Leo Bicknell (Jan 27)
- Re: pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton)) Randy Bush (Jan 27)
- Re: pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton)) Leo Bicknell (Jan 27)
- Re: pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton)) Leo Bicknell (Jan 27)
- RE: pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton)) George Bonser (Jan 27)
- Re: pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton)) Jared Mauch (Jan 29)
- RE: pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton)) George Bonser (Jan 29)
- RE: pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton)) George Bonser (Jan 29)
- BDP discussion pointers: was: Re pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton)) Jim Gettys (Jan 28)
- Re: BDP discussion pointers: was: Re pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton)) Jim Gettys (Jan 28)
- Re: 10GE TOR port buffers (was Re: 10G switch recommendaton) Leo Bicknell (Jan 27)
- Re: 10GE TOR port buffers (was Re: 10G switch recommendaton) Ćukasz Bromirski (Jan 27)
- Re: 10GE TOR port buffers (was Re: 10G switch recommendaton) Saku Ytti (Jan 28)
- Re: 10GE TOR port buffers (was Re: 10G switch recommendaton) Masataka Ohta (Jan 28)
- Re: 10GE TOR port buffers (was Re: 10G switch recommendaton) Saku Ytti (Jan 28)
- Re: 10GE TOR port buffers (was Re: 10G switch recommendaton) Masataka Ohta (Jan 28)
- Re: 10GE TOR port buffers (was Re: 10G switch recommendaton) Saku Ytti (Jan 28)