nanog mailing list archives

RE: LoadBalancing products: Cisco LocalDirector


From: "Roeland M.J. Meyer" <rmeyer () mhsc com>
Date: Sat, 8 Jul 2000 07:33:36 -0700


I heard rumor that Cisco was considering including LD capability
in the 6509 MSN router module?

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







Current thread: