>>the 5010 will beat the 4900M in switching latency
Based on the numbers I have, there are some cases where the 4900M is a
little faster. It gets especially interesting when you toss 1Gb into
the mix. See http://slepicka.net/nexus5klatency.png.
I've deployed both -- 4900M in low-density 10Gb applications and Nexus
5010/5020 in high-density 10Gb applications. Other than some minor
issues with the Nexus (off the top of my head, QoS support is limited --
probably due to the cut-through architecture -- and you can't connect a
switch to a FEX port), I'm happy with them.
James
Darrin Machay wrote:
Other than FCoE, the major difference is L3 switching. The 5010 is a
Layer2-only device and the 4900M can do routing. If you're trying to
shave off microseconds, the 5010 will beat the 4900M in switching
latency. On the other hand, the 4900M is modular and well suited for
mixed, low-density 1gig/10gig deployments.
Darrin Machay
YJT Solutions
440 South LaSalle St, Suite 3990
Chicago, IL 60605
Office: 312-362-4712
Cell: 312-961-6977
[email protected]
www.YJTSolutions.com
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Michael Malitsky
Sent: Tuesday, September 08, 2009 4:12 PM
To: [email protected]
Subject: [c-nsp] Catalyst vs. Nexus
Hello,
I am working on the first 10Gig deployment in a small data center. Main
driver is a SQL database, so there will be a bunch of SQL servers
virtualized using VMware, running against a SAN over iSCSI.
I've done some research and it looks like I can build the network using
a Catalyst 4900M or a Nexus 5010, at about the same cost. I am familiar
with the Catalyst family, but have no experience with the Nexus. At
this point, the only major difference I see is that Nexus supports Fibre
Channel (which I don't need). For being different product families, I
am having a hard time understanding what the major differences are. Can
anyone enlighten me?
If anyone has hands-on experience with both and willing to share, that
would be most appreciated.
Thanks,
Michael Malitsky
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