Contact Cache Linger Configuration

You enable this feature as part of the global SIP configuration, using that configuration’s options parameter. You can optionally configure the number of seconds you want to keep a contact in the registration cache before it is deleted. This is the option:

• contact-cache-linger=XX—Number of seconds to wait before a contact is deleted from the cache (where XX is the number of seconds)

  To enable SIP Registration overload protection on your Oracle® Enterprise Session Border Controller:

1. In Superuser mode, type configure terminal and press Enter.

   ORACLE# configure terminal

2. Type session-router and press Enter to access the signaling-level configuration elements.

   ORACLE(configure)# session-router
   ORACLE(session-router)#

3. Type sip-config and press Enter. The system prompt changes to let you know that you can begin configuring individual parameters.

   ORACLE(session-router)# sip-config
   ORACLE(sip-config)#

4. options—Set the options parameter by typing options, a Space, the option name preceded by a plus sign (+) (contact-cache-linger=XX) where XX is the number of seconds to keep a contact in the cache before deleting it.

   ORACLE(sip-config)# options +contact-cache-linger=5

   If you type either of these options without the plus (+) sign, you will remove any previously configured options. In order to append the new option to the options list, you must prepend the new option with a plus sign as shown in the example above.

5. Save and activate your configuration.