Cisco Cisco ASR 5000
MTC Congestion Control
Configuring MTC Congestion Control ▀
SGSN Administration Guide, StarOS Release 18 ▄
Configuring MTC Congestion Control
This section illustrates the required and optional configuration steps for setting up MTC Congestion Control on the
SGSN.
SGSN.
The following is broken into the following configuration components:
Configuring System-detected Congestion Thresholds
Configuring SGSN Congestion Control
Configuring APN-based Congestion Control
Configuring Extended T3312 Timer
Configuring Backoff Timers
Configuring O&M Triggered Congestion
Important:
Remember: details for each of the commands listed below are available in the Command Line
Interface Reference, StarOS Release 17.
Enabling Global-level Congestion Control
The following configuration is mandatory to enable congestion control on the SGSN.
The following configuration accomplishes several tasks, all of which must be performed to enable congestion control on
the SGSN.
the SGSN.
1. Enables or disables global-level congestion control for the SGSN and the IMSIMgr.
2. Associates the SGSN’s congestion-response action-profile with each of the three possible levels of congestion -
2. Associates the SGSN’s congestion-response action-profile with each of the three possible levels of congestion -
critical, major, and minor.
configure
congestion-control
congestion-control policy { critical | major | minor } sgsn-service action-profile
action_profile_name
action_profile_name
end
Notes:
sgsn-service
: Identifies the StarOS service type; in this case, the SGSN (Gn-SGSN and/or S4-SGSN).
action_profile_name
: Enter a string of 1 to 64 alphanumeric characters to identify the congestion-action-
profile to associate with the congestion-control policy. We recommend that you remember the name(s) that you
assign so that you will have them when you actually create and configure your congestion-action-profiles.
assign so that you will have them when you actually create and configure your congestion-action-profiles.
Repeat the
congestion-control policy
command as needed to associate one or more congestion-action-
profile(s) with each congestion level.