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[rbridge] Consensus Check: Point to Point links

anoop at brocade.com (Anoop Ghanwani) Sat, 06 October 2007 02:54 UTC

From: "anoop at brocade.com"
Date: Fri, 05 Oct 2007 19:54:23 -0700
Subject: [rbridge] Consensus Check: Point to Point links
In-Reply-To: <34BDD2A93E5FD84594BB230DD6C18EA202343FE0@nuova-ex1.hq.nuovaimpresa.com>
References: <3870C46029D1F945B1472F170D2D9790031840BA@de01exm64.ds.mot.com><47050BCA.5030003@sun.com> <3870C46029D1F945B1472F170D2D9790031CAD2B@de01exm64.ds.mot.com><34BDD2A93E5FD84594BB230DD6C18EA2022DE22D@nuova-ex1.hq.nuovaimpresa.com><4705E200.4060006@isi.edu><34BDD2A93E5FD84594BB230DD6C18EA202343EFA@nuova-ex1.hq.nuovaimpresa.com><4706D553.9010802@isi.edu><34BDD2A93E5FD84594BB230DD6C18EA202343F8A@nuova-ex1.hq.nuovaimpresa.com><4706DE36.8010606@isi.edu> <34BDD2A93E5FD84594BB230DD6C18EA202343FE0@nuova-ex1.hq.nuovaimpresa.com>
Message-ID: <4C94DE2070B172459E4F1EE14BD2364E7B06BC@HQ-EXCH-5.corp.brocade.com>

 

> -----Original Message-----
> From: rbridge-bounces at postel.org 
> [mailto:rbridge-bounces at postel.org] On Behalf Of Silvano Gai
> Sent: Friday, October 05, 2007 6:40 PM
> To: Joe Touch
> Cc: Rbridge at postel.org; Radia Perlman
> Subject: Re: [rbridge] Consensus Check: Point to Point links
> 
> At 100 Gb/s you can send 150 millions frame/s, i.e. you have 
> 6 ns/frame.
> Any operation you save it counts. Also the memory bandwidth 
> saved in retrieving the rewrite information may make the 
> difference from being able to use off chip memory (larger) or 
> being forced to stay on chip (smaller).

I don't understand why memory bandwidth would be an issue.  
We are talking a single address per port.

Anoop

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