switch speed question

Tue Feb 24 19:51:31 UTC 2009

Switches like this and the force10 2410 and the like are cut through so do sub micro second versus a 'regular' store and forward switch
------Original Message------
From: Holmes,David A
To: Deric Kwok
To: nanog at nanog.org
Subject: RE: switch speed question
Sent: Feb 24, 2009 1:03 PM

Arista claims to have the fastest 1/10 Gig 24 and 48 port 1RU switch,
with a backplane capacity guaranteeing 10 Gig full duplex line rate per
port. 

Cisco's CEF is local only and functions to download the arp cache and
routing table into ASICs for hardware switching; but look at Cisco's
NSF/SSO for cases where adjacent devices are all defined in the same
packet forwarding state machine.

-----Original Message-----
From: Deric Kwok [mailto:deric.kwok2000 at gmail.com] 
Sent: Monday, February 23, 2009 5:08 PM
To: nanog at nanog.org
Subject: switch speed question

Hi

Can you share your experience what is fastest Gig switch?

I see there is CEF feature in cisco.

ls it big different when i enable it in switch vs other switch?

ls there any problem?

Thank you

Sent from my BlackBerry device on the Rogers Wireless Network