SIP proxy settings

The SIP proxy settings page contains general configuration items that affect outbound transport configuration, toleration of IP Sprayer devices, and access logging configuration.

To view this admin console page ...

Servers > Server Types > WebSphere proxy servers > proxy_server_name > SIP proxy settings.

The SIP proxy settings panel allows you to define attributes and policies that control the behavior of the SIP proxy server.

Default cluster

Default cluster name.

The Default cluster field must be set to a valid cluster before any SIP messages are routed through the proxy server. The default cluster indicates which cluster of appservers should receive SIP traffic when there are no cluster selection rules defined, or when none of the existing cluster selection rules match.

Data type	Valid cluster name
Default	None

Retry-after header value

Amount of time, in seconds, that the SIP proxy waits before it returns the SIP request because the SIP containers are overloaded, or the SIP proxy cannot locate available servers to which it can route the request.

Range	1 to 1000
Data type	Integer
Default	5

Logging

Whether to enable or disable access logging.

When Enable access logging is checked, specifies the access log maximum size and proxy access log path name. When this control is unchecked, access log maximum size and proxy access log settings are disabled.

Data type	Boolean
Default	Unchecked

Access log maximum size

Maximum size, in megabytes (MB), of the access log before it rolls over.

Range	1 to 65535
Data type	Integer
Default	20

Proxy access log

Location of the SIP proxy access log.

Range	Valid path name
Data type	String
Default	$(SERVER_LOG_ROOT)/sipproxy.log

Container facing network interface

This section contains fields that configure the container-facing network interfaces.

The value asterisk (*) means let the OS decide which interface to use.

UDP interface

Network interface for all User Datagram Protocol (UDP) data that goes to and from the SIP container. The value for this setting is the hostname or IP address to use for all communications between the SIP proxy and the SIP containers when the network is segmented.

If a value is specified for this setting, also specify a value for the UDP port setting.

Data type	String
Default	*

UDP port

Specifies the UDP port for SIP container communications, such as the specific port required to pass through a firewall that separates the SIP proxy and the SIP containers.

If a value is specified for this setting, also specify a value for the UDP interface.

Range	1 to 65535
Data type	Integer
Default	*

TCP interface

Network interface for all Transmission Control Protocol (TCP) data that goes to and from the SIP container or containers.

Data type	String
Default	*

TLS interface

Network interface for all TLS data that goes to and from the SIP container or containers.

Data type	String
Default	*

Load balancer health checking

This section contains fields that configure the load balancer used to load balance the SIP proxy server and perform health checks.

Load balancer members (IP address 1 and 2)

IP addresses of the load balancers that source the SIP health checks. The IP addresses (1 and 2) verify the message is an actual SIP advisor request before sending a response back to it.

Data type	String
Default	None

SIP health check method name

Health check method name sent to the SIP proxy from the load balancer.

Data type	String
Default	None

Tolerate a specific number of negative health checks

Whether to allow negative health checks.

Data type	Boolean
Default	False

Maximum negative health checks

Number of SIP health checks that the load balancer can perform that return negative results, indicating that there is a communication problem between the load balancer and the SIP proxy, before this SIP proxy informs the other SIP proxies that it is no longer processing data.

Range	1 through 10
Data type	Integer
Default	3

SIP network outage detection

Whether to enable or disable outage detection.

When Enable SIP network outage detection is checked, specifies the KEEPALIVE interval and maximum KEEPALIVE failures. When this control is unchecked, network outage detection is disabled.

Data type	Boolean
Default	Unchecked

Keep alive interval

Interval, in milliseconds, at which the KEEPALIVE packets are sent to the SIP containers.

Range	1 through 1000
Data type	Integer
Default	3000

Maximum keep alive failures

Number of KEEPALIVE requests that are sent without getting a response before considering this server down.

Range	1 through 10
Data type	Integer
Default	3

Overload protection

Whether to enable or disable overload protection.

When Enable proxy managed overload protection is checked, specifies the maximum throughput allowed and overload error response. When this control is unchecked, maximum throughput and overload error response fields are disabled.

Data type	Boolean
Default	True

Max throughput factor

Degree of overload protection at the proxy and is a percentage of the maximum messages per averaging period for the SIP container.

Range	1 through 100
Data type	Integer
Default	90

Overload response code

Overload response code. When the proxy detects an overload condition, it will respond to the request with the overload response code, if it is set.

Data type	Integer
Default	503

Overload response reason

Overload response reason phrase. When the proxy detects an overload condition, it will respond to the request with the overload response phrase, if it is set.

Data type	String
Default	Service unavailable

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Related tasks

Set the SIP proxy for network outage detection
Set up the proxy server

 

Related

Proxy server collection