Configuring a new traffic isolation packs (TIP)

[DavitH]

We are trying to separate high-volume proxies into a separate TIP.  Apigee team has provisioned a new TIP and asked us to whitelist the EIPs for the pods.

What is the whitelisting process?
Where exactly does it have to be done?

An architecture diagram showing routers, firewalls, TIPs, etc, would be helpful.

Thanks in advance!