Your account team could be the first place you turn, as they can get someone onsite if needed to provide in-person assistance. We also have an internal helpdesk to help Partners with new deployments and trial deployments. And there is Cisco TAC should you encounter problems during the deployment. All of these resources are staffed with people trained and experienced in WAAS.
WAAS provides multiple methods of deployment and interception, including (but not limited to) WCCP and Inline. Inline places the WAE in the path of the packets. WCCP places the WAE out of path of the packets and requires that the router/switch be configured to intercept packets and redirect them to the WAE.
If the WAE comes equipped with inline card, an inline group consists of a pair of interfaces marked LAN and WAN. Connect LAN to the cable connecting to the LAN-side switch/router, and connect WAN to the cable connecting to the WAN-side switch/router. The types of cabling you use, duplex and speed settings on the switches and routers, and placement of the WAE within the network are important.
However, Inline may not be the preferred method for deploying in your datacenter.
If the WAE does not come equipped with an inline card, then the Gigabit interfaces are used to connect to a router/switch, and packets must be redirected to that WAE on that interface. A single interface may be used, or the interfaces may be grouped into a port-channel or standby interface configuration. Redirection from the router/switch is generally accomplished by configuring WCCP on the router/switch and on the WAE. Packets are intercepted at the router on one or more interfaces, and redirected to the WAE. The WAE processes them, performing appropriate optimizations, and egresses them back to the router/switch which forwards them to the destination.
Decide on the interception method. Read the appropriate sections in the documentation and decide how best to connect the WAE and configure interception, based on your datacenter's unique requirements. Probably the fastest way to get started would be to read the quick-start guide, and use the CLI-based setup tool.
Instructions for the inline interface can be found here:
http://www.cisco.com/en/US/docs/app_ntwk_services/waas/wae/module/inline/installation/guide/17880fru.html
Instructions for the WAE-7341 hardware can be found here:
http://www.cisco.com/en/US/docs/app_ntwk_services/waas/wae/installation/7341-7371/guide/7341gd.html
Quick Start guide here:
http://www.cisco.com/en/US/docs/app_ntwk_services/waas/waas/v421/quick/guide/waasqcg.html
Configuration (including WCCP) guide here:
http://www.cisco.com/en/US/docs/app_ntwk_services/waas/waas/v421/configuration/guide/cnfg.html
