Using a Cisco ACE as a router

[g-campbell]

Can anyone advise the best way to allow non-load-balanced IP traffic through a Cisco ACE?  The ACE must load-balance for some traffic but act as a router for all other traffic.

Regards

[sivaksiv]

Hi,

As long as you have the access-list and routing configured, the ACE should be able to forward the traffic at L3 without load balancing.

The traffic is load balanced when you have the traffic hitting a VIP with service policy applied on an interface.

-

Siva

[g-campbell]

Ok, thanks that was my general understanding too, just hoped there would be no need for any fancy class-maps etc.  Thanks very much

[sivaksiv]

Also here is an example where you still have the traffic hitting a VIP and dont want to load balance

Configure a class map for HTTP traffic . Then configure the ACE to forward requests that match a http policy map
without performing loadbalancing on the request -- use the forward command in load-balancing policy-map class configuration mode.


class-map match-all HTTP_CLASS
 2 match virtual-address 1.1.1.220 tcp eq 80


switch/Admin(config-pmap-c)# policy-map type loadbalance first-match
http-forwarding-lb-pm 
switch/Admin(config-pmap-lb)# class class-default 
switch/Admin(config-pmap-lb-c)# forward 
switch/Admin(config-pmap-lb-c)# 

policy-map multi-match SMTP
 class SMTP_CLASS
 ......
 class HTTP_CLASS
  loadbalance policy http-forwarding-lb-pm 


Hope this helps.
-
Siva