Supplied parameters

The application supplies the following parameters:

opcode
AP_DEFINE_RTP_TUNING
path_switch_attempts
Number of path switch attempts to set on new RTP connections. Specify a value in the range 1-255. If you specify 0(zero), CS Linux uses the default value of 6.
short_req_retry_limit
Number of times a Status Request is sent before CS Linux determines that an RTP connection is disconnected and starts Path Switch processing. Specify a value in the range 1-255. If you specify 0(zero), CS Linux uses the default value of 6.
path_switch_times
Length of time in seconds for which CS Linux attempts to path switch a disconnected RTP connection. This parameter is specified as four separate time limits for each of the valid transmission priorities in order: AP_LOW, AP_MEDIUM, AP_HIGH, and AP_NETWORK. Each of these must be in the range 1-65535. The value you specify for each transmission priority must not exceed the value for any lower transmission priority.

If you specify 0(zero) for any of these values, CS Linux uses the corresponding default value as follows:

  • 480 seconds (8 minutes) for AP_LOW
  • 240 seconds (4 minutes) for AP_MEDIUM
  • 120 seconds (2 minutes) for AP_HIGH
  • 60 seconds (1 minute) for AP_NETWORK
refifo_cap
The RTP protocol uses a timer called the Re-FIFO Timer. The value of this timer is calculated as part of the protocol, but this parameter specifies a maximum value in milliseconds beyond which the timer cannot increase. In some situations, setting this maximum value can improve performance. Setting a value of 0 (zero) means that the timer is not limited and can take any value calculated by the protocol.

The default value for this parameter is 4000 milliseconds, with a minimum value of 5 milliseconds. If you specify a value in the range 1-4, the value of 5 will be used.

srt_cap
The RTP protocol uses a timer called the Short Request Timer. The value of this timer is calculated as part of the protocol, but this parameter specifies a maximum value in milliseconds beyond which the timer cannot increase. In some situations, setting this maximum value can improve performance. Setting a value of 0 (zero) means that the timer is not limited and can take any value calculated by the protocol.

The default value for this parameter is 8000 milliseconds, with a minimum value of 5 milliseconds. If you specify a value in the range 1-4, the value of 5 will be used.

path_switch_delay
Minimum delay in seconds before a path switch occurs. Specifying a delay avoids unnecessary path switch attempts caused by transient delays in network traffic, in particular when there is no other route available.

Specify a value in the range 0-65535. The default value is zero, indicating that a path switch attempt can occur as soon as the protocol indicates it is required.