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 administrative console page, click 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

Specifies the 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 application servers 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

Specifies the 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

Specifies 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
Specifies the 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
Specifies the 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.

Note: The value asterisk (*) means let the OS decide which interface to use.
UDP interface
Specifies the 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.
Note: If a value is specified for this setting, you must 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.
Note: If a value is specified for this setting, you must also specify a value for the UDP interface.
Range 1 to 65535
Data type Integer
Default *
TCP interface
Specifies the 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
Specifies the network interface for all Transport Layer Security (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)
Specifies the IP addresses of the load balancers that source the SIP health checks. The IP addresses (1 and 2) ensure that 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
Specifies the 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
Specifies whether to allow negative health checks.
Data type Boolean
Default False
Maximum negative health checks
Specifies the 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

Specifies 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
Specifies the 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
Specifies the 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

Specifies 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
Specifies the 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
Specifies the 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
Specifies the 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



Related tasks
Configuring the SIP proxy for network outage detection
Setting up the proxy server
Related reference
Proxy server collection
Reference topic    

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Last updated: Oct 20, 2010 7:53:43 PM CDT
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