[nsp] Server Load Balancing Options

Christopher McCrory chrismcc at pricegrabber.com
Wed Mar 26 13:23:25 EST 2003


On Wed, 2003-03-26 at 10:40, Jason Greenberg wrote:
> Hello, would someone please validate this list, and or recommend less
> alternatives?  I would appreciate it a lot!
> Our requirements: 
> 	1) Server Load Balancing (IP address translation) LAYER 3 ONLY
> 	2) Server availability monitoring (ping?)
> 	3) Redundant Switch Capability (SLB HSRP?)
> 	4) medium load - DNS, LDAP, mail, radius, etc..
> As far as I can tell, my options are
> 1) 6500 SLB CSM - 40-100 grand ?? what modules are needed here?
> 2) 6500 cat/native OS SLB ??? what modules are needed here?
> 3) 4840G - 30 grand
> 4) 7200 Router IOS SLB <- 10 grand
> 5) IOS NAT on a 3640?? <- no high availability here, but cheap...

I have been using the LocalDirector for a couple of years with great
results.  Get two for failover if you want.

Make sure you understand the concept behind what it is doing ( for
whatever you chose).  The localdirector acts a bridge between two vlans
on your switch.  so you have vlanALL and vlanSERVERS . if the
localdirector is not there, no traffic can get to $SERVERS at all. hence
buying two, "just in case".

> Here is my question - is there anything that is not so bloody expensive
> that will do medium load SLB for an ISP?

Christopher McCrory
 "The guy that keeps the servers running"
chrismcc at pricegrabber.com
Let's face it, there's no Hollow Earth, no robots, and
no 'mute rays.' And even if there were, waxed paper is
no defense.  I tried it.  Only tinfoil works.

More information about the cisco-nsp mailing list