CCDP ARCH book states to avoid CEF (Cisco Express Forwarding) polarization, the recommended way to do is to use alternating input hashes in the core and distribution layer. In the core, use the default hash, which is based on only Layer 3 information. In the distribution layer, use Layer 3 and 4 information as the input into the CEF hash algorithm.
To enable Layer 3 and 4 CEF hashing algorithm, issue this command:
Switch (config)# mls ip cef load-sharing full
Disclosure
NetworkJutsu.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.