[c-nsp] Load balancing

[Arie Vayner]

Around 3000 connections per sec, about 20K concurrent connections. Load
is around 12-15%
The thing you have to look on the CSM is not CPU load, but the load on
it's 5 FPGA chips:

sh module ContentSwitchingModule 9 tech-support utilization
<skip>
  IXP Engines
     IXP1        12%
     IXP2        10%
     IXP3         8%
     IXP4         0%
     IXP5        10% 

The 1st one takes care of new sessions and classification (so it usally
has the most work to do).
The 5th does NAT, so it works hard too.
The 2-4 chips take care of new sessions only (if I remember right)


Arie

-----Original Message-----
From: Steve Francis [mailto:sfrancis at fastclick.com] 
Sent: Wednesday, December 29, 2004 10:39 AM
To: Arie Vayner
Cc: Brant I. Stevens; Tantsura, Jeff; Michel Renfer;
cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Load balancing

What load are you running (connections/second) and what is the reported
CPU usage of the CSM?

Arie Vayner wrote:

>We are using stateless failover and it is ok...
>The only major point is that the 2 CSM's would not sync their config 
>automatically, so you have to do it manually (it should be fixed in a 
>future release) Also, there is a stateful mechanism, which just syncs 
>up the state tables between the 2 CSM's
>
>The whole mechanism is build around HSRP
>
>Arie
>
>-----Original Message-----
>From: Brant I. Stevens [mailto:branto at branto.com]
>Sent: Thursday, December 23, 2004 4:17 PM
>To: Tantsura, Jeff; Arie Vayner; Michel Renfer; 
>cisco-nsp at puck.nether.net
>Subject: Re: [c-nsp] Load balancing
>
>Out of curiosity, how is stateful failover (inter-chassis) handled on 
>the CSM?
>
>
>On 12/23/2004 09:06 AM, "Tantsura, Jeff" <jeff.tantsura at capgemini.com>
>wrote:
>
>  
>
>>Hi,
>>
>>I used CSM's on 65xx, work just fine, although there are some tricks, 
>>especially in combination with FW blade.
>>I've been using Alteon's since 2001, great switch but it's Nortel
>>    
>>
>now...
>  
>
>>not my favourite hardware vendor.
>>You could consider F5 as well.
>>
>>Jeff
>>
>>-----Original Message-----
>>From: cisco-nsp-bounces at puck.nether.net 
>>[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Arie Vayner
>>Sent: Thursday, December 23, 2004 9:54 AM
>>To: Michel Renfer; cisco-nsp at puck.nether.net
>>Subject: RE: [c-nsp] Load balancing
>>
>>We are using the CSM for some applications like tunnels, DNS and other
>>    
>>
>
>  
>
>>things, and it works just great Arie
>>
>>-----Original Message-----
>>From: cisco-nsp-bounces at puck.nether.net 
>>[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Michel Renfer
>>Sent: Wednesday, December 01, 2004 11:25 PM
>>To: cisco-nsp at puck.nether.net
>>Subject: [c-nsp] Load balancing
>>
>>Hi All!
>>
>>We're currently looking at various load balancing solutions. Any 
>>comments/experiences regarding the Cisco CSS11500 series? Anyone using
>>    
>>
>
>  
>
>>SLB on 72xx?
>>
>>cheers,
>>michel
>>
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