Signaling Checkpointing

You can configure your HA node to checkpoint signaling for SIP.

SIP Signaling Checkpointing

In the SIP configuration, you can set parameters that enable SIP signaling checkpointing across an HA node.

When configured, these parameters will appear in the ACLI as they do in example below.

Note:

This example shows the default values being used, and we recommend that you do not change these values from their defaults.

red-sip-port                   1988
red-max-trans                  10000
red-sync-start-time            5000
red-sync-comp-time             1000

Signaling Checkpointing Configuration

To configure SIP signaling checkpointing across an HA node in the ACLI:

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

   ORACLE# configure terminal

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

   ORACLE(configure)# session-router

3. Type session-router and press Enter.

   ORACLE(session-router)# sip-config

   From here, you can configure SIP parameters for HA nodes. To view all SIP configuration parameters, enter a ? at the system prompt.

   When configuring SIP for HA, you only need to set the parameters addressed in this procedure.

4. red-sip-port—Enter the port on which SIP signaling checkpointing messages are sent and received. The default value is 1988. A value of 0 disables the SIP signaling checkpointing. The valid range is:

   • Minimum—0, 1024

   • Maximum—65535

5. red-max-trans—Enter the maximum size of the transaction list, or how many SIP transactions you want to store in memory at one time. Oldest transactions will be discarded first in the event that the limit is reached. The default value is 10000. The valid range is:

   • Minimum—0

   • Maximum—999999999

6. red-sync-start-time—Enter the number of milliseconds before the Oracle® Enterprise Session Border Controller will try to synchronize its signaling state checkpointing.

   If the active Oracle® Enterprise Session Border Controller is still adequately healthy, this timer will simply reset itself. If for any reason the active Oracle® Enterprise Session Border Controller has become the standby, it will start to checkpoint with the newly active system when this timer expires.

   We recommend that you leave this parameter set to its default, 5000. The valid range is:

   • Minimum—0

   • Maximum—999999999

7. red-sync-comp-time—Enter the number of milliseconds representing how frequently the standby Oracle® Enterprise Session Border Controller checkpointing with the active Oracle® Enterprise Session Border Controller to obtain the latest SIP signaling information. The first interval occurs after initial synchronizations of the systems.

   We recommend that you leave this parameter set to its default, 1000. The valid range is:

   • Minimum—0

   • Maximum—999999999