From: Kenneth Wygand (KWygand@customonline.com)
Date: Tue Jun 01 2004 - 12:47:47 GMT-3
Hello all,
I was thinking about large providers that need to connect core switches
at very fast speeds. For example, say I have two 6506 core switches I
wanted to connect in the backbone. Say each one is terminating 20 - 30
fiber gigabit speed links. I would think it would be a poor idea to
oversubscribe the link between these switches to a 1GBit or even 10GBit
link. If the link was oversubscribed, logic would think that QoS should
be employed here to make sure critical traffic (voice, video) gets
through first, but all design guides point towards keeping all QoS out
of the core to simply switch packets as fast as possible...
What is recommended and is there any documentation / experience anyone
can contribute?
Thanks!
Kenneth E. Wygand
Systems Engineer, Project Services
CISSP #37102, CCNP, CCDP, ACSP, Cisco IPT Design Specialist, MCP, CNA,
Network+, A+
Custom Computer Specialists, Inc.
"I am not really smart. I just stick with problems longer."
-Albert Einstein
Custom Computer Specialists, Inc.
"Celebrating 25 Years of Excellence"
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