02-24-2012 03:44 AM
Hi,
I configured conn reuse and I tried to provide requests from diferent clients to the VIP address (172.16.11.150). The ACE provides load-balancing, but it doesn't provide conn reuse. The server uses the same MSS as ACE (1460). See the configuration bellow:
ACE-4710-1/Lab-OPT-11# sho run
Generating configuration....
access-list traffic line 8 extended permit ip any any
rserver host s1
ip address 192.168.1.21
inservice
rserver host s2
ip address 192.168.1.22
inservice
serverfarm host WEB
rserver s1
inservice
rserver s2
inservice
parameter-map type http REUSE
server-conn reuse
persistence-rebalance
class-map match-all VIP
3 match virtual-address 172.16.11.150 tcp eq www
policy-map type loadbalance first-match test
class class-default
serverfarm WEB
policy-map multi-match CL
class VIP
loadbalance vip inservice
loadbalance policy test
loadbalance vip icmp-reply
nat dynamic 1 vlan 341
appl-parameter http advanced-options REUSE
interface vlan 341
description Server vlan
ip address 192.168.1.1 255.255.255.0
nat-pool 1 192.168.1.100 192.168.1.100 netmask 255.255.255.255 pat
no shutdown
interface vlan 345
ip address 172.16.11.2 255.255.255.0
access-group input traffic
service-policy input CL
no shutdown
There are some outputs from show commands on ACE:
ACE-4710-1/Lab-OPT-11# sho serverfarm WEB
serverfarm : WEB, type: HOST
total rservers : 2
state : ACTIVE
DWS state : DISABLED
---------------------------------
----------connections-----------
real weight state current total failures
---+---------------------+------+------------+----------+----------+---------
rserver: s1
192.168.1.21:0 8 OPERATIONAL 0 23 0
rserver: s2
192.168.1.22:0 8 OPERATIONAL 0 22 0
ACE-4710-1/Lab-OPT-11# sho stats http | inc Reuse
Reuse msgs sent : 0 , HTTP requests : 419
ACE-4710-1/Lab-OPT-11# show np 1 me-stats "-socm -v" | i [uU][sS][eE]
Reuse retrieve link update conn invalid 0 0
Reuse retrieve link update conn not on r 0 0
Reuse retrieve success but conn invalid: 0 0
Reuse retrieve miss: 0 0
Reuse conns retrieved: 0 0
Can you help me? Do I have some mistake in configuration?
Thank you
Roman
Solved! Go to Solution.
02-27-2012 05:36 AM
Hi Roman,
Connection reuse only makes sense in a L7 environment, in which the ACE proxies the client connection, but you configured your VIP as a L4 one. In that situation, connection reused will not be used at all.
Can you please try changing your VIP to a L7 configuration (by adding a URL match class-map) and see if connection reuse starts to work?
Daniel
02-27-2012 05:36 AM
Hi Roman,
Connection reuse only makes sense in a L7 environment, in which the ACE proxies the client connection, but you configured your VIP as a L4 one. In that situation, connection reused will not be used at all.
Can you please try changing your VIP to a L7 configuration (by adding a URL match class-map) and see if connection reuse starts to work?
Daniel
02-28-2012 07:03 AM
Hi Daniel,
you are right. I configured L7 rule and for now it is working well. Thank you for your help!!
Roman
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