-----Original Message----- From: ejm@onmedia.com [mailto:ejm@onmedia.com] Sent: Saturday, July 08, 2000 10:19 AM To: Roeland M.J. Meyer; 'Stephen Sprunk'; 'Karyn Ulriksen' Cc: 'North American Noise and Off-topic Gripes' Subject: RE: LoadBalancing products: Cisco LocalDirector

Actually, the MSM module has been phased-out in favor of what Cisco calls the "MSFC/PFC" modules for the supervisor engine. It

silicon based L3/L4 services, rather than MSM CPU/CEF based forwarding.

It is true that there is IOS based LB, which can be enabled on

performs the

MSFC. However, the functionality is a subset of the LD. You'll have to visit Cisco to get the full scoop on the 6xxx futures for LB.

You might forward this to the NANOG list, since I'm a "listen only" member.

As a disclaimer, I work for Cisco.

Thanks!

... Erik --- Erik Murrey

"Roeland M.J. Meyer" <rmeyer@mhsc.com> wrote on Saturday July 8, 2000 at 7:35am:

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I heard rumor that Cisco was considering including LD

capability

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in the 6509 MSN router module?

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Stephen Sprunk: Friday, July 07, 2000 5:46 PM

If you are using a LocalDirector with a Cat6k switch, you can enable the Accelerated Server Load Balancing feature. This allows the Cat6k to forward the bulk of the flow (at wire speed), and lets the LD focus exclusively on the connection setup/teardown functions.

For more information:

...

/ld33rns/l dicgd/ld3_ch04.htm#xtocid1675521

S

| | Stephen Sprunk, K5SSS, CCIE #3723 :|: :|: Network Design Consultant, HCOE :|||: :|||: 14875 Landmark Blvd #400; Dallas, TX .:|||||||:..:|||||||:. Email: ssprunk@cisco.com

----- Original Message ----- From: "Karyn Ulriksen" <kulriksen@publichost.com> To: "'Bennett Todd'" <bet@rahul.net>; "Karyn Ulriksen" <kulriksen@publichost.com> Cc: <nanog@merit.edu> Sent: Thursday, July 06, 2000 11:40 Subject: RE: LoadBalancing products: Foundry ServerIron

...

A friend of mine was using LD's on his service. They do

about 180mbps over

...

3 locations and were running performance problems. (They ended up moving to F5's). One of Exodus's Senior Network Engineers has seen

http://www.cisco.com/univercd/cc/td/doc/product/iaabu/localdir that

...

...

become problematic at about the magic 80mbps you mentioned. I spoke with a few different neteng buddies when we started looking at LB's over a year ago and they all told me to stay away from the LD's. But like all of us,

...

get better as they stay around longer...

Probably, it's the same with all LB products ... you have to match the right products with your needs. Me, I have to go for the big scale. So I'll sacrifice features for ability to consistently handle the

consistenly they traffic and

...

scalability. I eliminated quite a few simply because they couldn't handle the volume, but that doesn't mean that they would work well for a site located in one of the big data centers.

-Karyn

....