Yep...Layer 7 functions are performed in the CPU's dedicated to every port.
Next time you slide one of the blades out, take a look at how many
processors are sitting on there. ;) If you aren't "switching" based on
specific urls or cookies, try port based (Layer 4) decisions instead. It
didn't look like your config had any special url needs.
-----Original Message-----
From: Stephane Litkowski [mailto:st_litkowskiIZZAThotmail.com]
Sent: February 05, 2002 6:52 AM
To: lb-lIZZATvegan.net
Subject: Re: [load balancing] CSS hangs after 16Mb of traffic into GE
port for transparent proxies
URL analysis is not ASIC , it's CPU only ...
Only L4 switching is done by ASICs (Fast Path Processors).
The 'url "/*"' in your config make the CSS do CPU switching instead of ASIC
switching : in your case, CSS CPU (SFP = Switch Fabric Processor) does L7
analysis for each packet.
>From: Benny Chee <bennycIZZATmagix.com.sg>
>Reply-To: lb-lIZZATvegan.net
>To: lb-lIZZATvegan.net
>Subject: Re: [load balancing] CSS hangs after 16Mb of traffic into GE port
>for transparent proxies
>Date: Tue, 5 Feb 2002 22:08:27 +0800
>
>just found out another thing, once traffic goes through the switch, the cpu
>shot up from 4% to 80% at 10Mb load. What's wrong, i thought it's ASIC?
>
>CPU utilisation was done using "show system-resource" command. I m running
>5.00 Build 33 code.
>
>benny
>
>On Sun, Feb 03, 2002 at 10:12:35AM +0800, Benny Chee wrote:
>| hi,
>|
>| did anyone have the following sympton....
>|
>| i was running up my CSS11154 to do transparent proxies load
balancing.
>my router would intercept port 80 request and forward it to the circuit
>VLAN of my CSS. i have 6 caches (cacheflow) sitting behind the CSS. All's
>being balance using domainhash method. The caches points default route to
>the CSS, and the CSS points default route to my router.
>|
>| after 10mins and 16Mb of traffic later, all traffic stops at the
CSS,
>and it just hangs. No traffic could pass through. A hard reset to the CSS
>was the only solution. Can't even telnet to the mgmt port.
>|
>| Does someone on the list have similar network configurations and got
>things to work? If so, how? What version of CSS is more stable?
>|
>| after the incident, i upgraded from ver 5.00 build 2 to ver 5.00
build
>33. Still the same problem persists. Any help?
>|
>| attached is part of my config.
>|
>|
>| !*************************** GLOBAL ***************************
>| persistence reset remap
>| ip opportunistic all
>|
>| ip route 0.0.0.0 0.0.0.0 192.168.1.254 1
>|
>| !*************************** OWNER ***************************
>| owner foo.com
>|
>| content transparent_proxy
>| balance domainhash
>| add service cf3
>| add service cf4
>| add service cf5
>| add service cf6
>| add service cf7
>| add service cf8
>| protocol tcp
>| port 80
>| url "/*"
>| no persistent
>| active
>|
>| benny
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