I have a Catalyst 6509 with redundant Supervisor Engine 720 in a data center. It is hybrid mode (i.e. CatOS and MSFC IOS).
It's connected to an edge WAN router connecting to branch offices. I'm implementing a WAE at the data center to optimize TCP traffic between the various server farms in the data center and the branch offices.
The WAE is L2 adjacent to the Catalyst 6509. The WCCPv2 config of the C6509 is as follows:
ip wccp version 2
ip wccp 61
ip wccp 62
int vla 100
description *** Connection to WAN Router to Branch Offices ***
ip address 172.16.100.1 255.255.255.0
ip wccp 61 redirect out
ip wccp 62 redirect in
int vla 200
description *** Connection to Data Center WAE (L2 adjacent) ***
ip address 172.16.200.1 255.255.255.0
ip wccp redirect exclude in
int vla 10
description *** Server Farm 1 ***
ip address 172.16.10.1 255.255.255.0
int vla 20
description *** Server Farm 2 ***
ip address 172.16.20.1 255.255.255.0
int vla 30
description *** Server Farm 3 ***
ip address 172.16.30.1 255.255.255.0
int vla 40
description *** Server Farm 4 ***
ip address 172.16.40.1 255.255.255.0
router ospf 1
netw 172.16.0.0 0.0.255.255 ar 0
Because it is not known which server farm the remote users need to access to, I do not want to apply inbound redirection on the server farm interfaces. Instead, I'm doing both inbound and outbound redirection on the interface connecting to the edge WAN router. Is my config valid and recommended for production environment?
I came across a note that says:
*** Setting outbound redirection on Cat6k/76xx may lead to 100% CPU on the switch ***
Can anyone verify the above statement?