Configuring Sip Server Keepalive And Backup - HP FlexNetwork MSR Series Configuration Manual

Configuring SIP server keepalive and backup

The keepalive function detects whether a SIP server is available in either of the following two ways:
•
Options keepalive—The device periodically sends Options packets to detect the availability of
the SIP server. If the response from the server is 408 or 5xx (except 502, 504, 505, and 513),
the server is unavailable.
•
Register keepalive—The register packets can also detect the availability of the SIP server. If
the response from the server is 408 or 5xx (except 502, 504, 505, and 513), the server is
unavailable.
Two backup modes are available in SIP client view.
•
Parking backup mode—If the current server is unavailable, the device sends options or
register packets to a backup server, and will not switch back after the original server recovers.
Before enabling the parking backup mode, enable the options or register keepalive with the
keepalive command.
•
Homing backup mode—The device sends Options packets to both the current server and the
server with the highest priority, regardless of the state of the server with the highest priority. If
the current server fails, the backup server becomes the current server. If the server with the
highest priority is available, the current server changes from the backup server to the server
with the highest priority. Before enabling homing backup, enable options keepalive with the
keepalive command.
To configure SIP server keepalive and backup:
Step
1. Enter system view.
2. Enter voice view.
3. Enter SIP client view.
4. Configure the keepalive
function.
5. Specify the backup mode.
Configuring SIP routing
The following SIP routing policies are available on your router:
•
Use the destination IP address. Configure the IP address and port number of the destination.
•
Use the proxy server. If a SIP server is present, use the SIP proxy server for SIP message
interaction.
•
Use the domain name as the destination address. Without the need of obtaining the IP address
of the destination, the client only needs to know the unique domain name of the destination on
the network, and communicates with the destination through DNS.
•
Use the E.164 Number to URI Mapping (ENUM). ENUM translates telephone numbers into
Internet addresses.
Configuration prerequisites
If a SIP server is used to forward calls, complete the configurations on the SIP server.
Command
system-view
voice-setup
sip
keepalive { options [ interval
seconds ] | register }
redundancy mode { homing |
parking }
144
Remarks
N/A
N/A
N/A
Register keepalive is used by
default.
Parking backup mode is used by
default.