Subject: [rbridge] Time for a summary?

From: sgai at nuovasystems.com (Silvano Gai)
Date: Fri, 20 Oct 2006 17:49:59 -0700

Eric,

Can you please reply to the following question?

                +---------------+
     100        |               |     X
--------------->|    RBridge    |----------------->
Not encapsulated|               |  Encapsulated
                +---------------+

When a frame of 1,000 bytes is received not-encapsulated by an RBridge
and transmitted encapsulated, how big is it (X) after the TRILL header
is added on Ethernet?

-- Silvano

> -----Original Message-----
> From: Gray, Eric [mailto:Eric.Gray at marconi.com]
> Sent: Friday, October 20, 2006 10:35 AM
> To: Silvano Gai
> Cc: rbridge at postel.org
> Subject: RE: Time for a summary?
> 
> Silvano,
> 
> 
> 
> -- [SNIP] --
> -->
> --> Let's also use some quantitative analysis. The TRILL Ethernet
header
> --> currently defined in:
> -->
> http://www.ietf.org/internet-drafts/draft-ietf-trill-rbridge-protocol-
> 00.txt
> --> is 18 bytes
> 
> We are _not_ defining an Ethernet header, and - whatever text it is
that
> leads you to believe we are - that text should be modified or removed.
> 
> We are simply using a standard Ethernet header, with an Ethertype that
> indicates that this header is followed by an Rbridge SHIM and another
> Ethernet header.
> 
> -- [SNIP] --