S10/S3-S11 Interface Separation

This chapter describes the following topics:

Feature Summary and Revision History

Summary Data

Applicable Product(s) or Functional Area

MME

Applicable Platform(s)

  • ASR 5500

  • VPC-DI

  • VPC-SI

Default Setting

Disabled - Configuration Required

Related Changes in This Release

Not Applicable

Related Documentation

  • Command Line Interface Reference

  • MME Administration Guide

Revision History

Revision Details

Release

First introduced.

21.10

Feature Description

MME supports association of additional EGTP service for handling S10/S3 interfaces. New CLI is introduced allowing MME to decide to use which egtp-interface for S10/S3 signalling to peer MME/SGSN for Handover scenarios.

How It Works

Flows

Separate IP Addressing for S11 and S10/S3 interfaces. All S11 Communication will be on IP-1 and S10 communication will on IP-2. This is applicable for both inter operator S10/S3(MME/SGSN) Handovers and intra operator S10/S3(MME/SGSN) Handovers.

Limitations

This section describes the known limitations for S10/S3-S11-Interface Separation feature:

  • Configuration changes like adding and deleting of GTPv2 interfaces is not supported during runtime.

  • Changes to GTPv2 interfaces must be performed in service-mode only.

  • When S10/S3 and S11 GTPv2 interfaces are separated, S10/S3 interface will only allow S10/S3 procedures on that interface other GTP messages will be discarded. Same is with respect to S11 interface.

Configuring S10/S3 Interface Separation

This section provides information on the CLI commands to configure Configuring S10/S3 Interface Separation the in MME.

egtp-s10-s3-service

Use the following configuration to associate EGTP service for S10/S3 interface to support Inter-Operator S10 Handover. 

configure  
   context context_name  
      mme-service service_name 
         associate egtp-s10-s3-service sevice_name 
         [ no ] associate egtp-s10-s3-service 
         end

Important

Association of new egtp-s10-s3-service requires mme-service restart or system reload.

NOTES:

  • no : Removes the association for S10/S3 interface at MME.

  • The associate egtp-s10-s3-service sevice_name associate EGTP service for S10/S3 interface. sevice_name must be an alphanumeric string of size 1 to 63 characters.

Monitoring and Troubleshooting

This section provides information regarding show commands and bulk statistics available to monitor and troubleshoot the EGTP S10/S3 Service Saperation feature.

Show Commands and Outputs

show mme-service all

The output of this command includes the following fields:

  • EGTP S10/S3 Context

  • EGTP S10/S3 Service