Cisco Cisco ASR 5500 Technical Manual

Contributed by Shashank Varshney, Cisco TAC Engineer.
Jul 23, 2015

Introduction
Prerequisites
     Requirements
     Components Used
Congestion Control Overview
     MME/SGSN Congestion Control
        APN−Based Session Management Congestion Control
        APN−Based MM Congestion Control
        General NAS−Level Congestion Control
        Overload Reduction by MME on S1−MME Interface
     PGW Control of Overload
Congestion Control Operation on the ASR 5x00
     Call Disconnect on Overload
     Congestion Condition Thresholds
     Service Congestion Policies
Configure
     Enable Congestion Control
     Congestion Control Overload Disconnect
     Congestion Control Policy Configuration
        Congestion Control Policy
        Policy Overload Redirect
        Congestion Control Policy for MME Service
        MME Congestion Control Policy Action Profile
        Congestion Control Policy for SGSN with Releases 17.0 and Later
        SGSN Congestion Control Policy Action Profile
     Congestion Control Threshold
        Congestion Control Threshold Values for MME and SGSN
Verify
     Congestion Control Configuration Verification
        Congestion Control Before Activation
        Congestion Control After Activation
        Congestion Control After Overload Disconnect Activation
        Congestion Control After Activation of Policies Other Than SGSN and MME
        Congestion Control Threshold for Major and Minor Profiles
        Congestion Control Policy Activation for SGSN
        Congestion Control Policy Activation for MME
     Congestion Control Statistics
     Congestion Control Trigger for SGSN by OAM Intervention
Troubleshoot
Related Information