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[MX] How to enable Tomcat (Next Generation Subscriber Management) on Junos 15.1R4 and later versions

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Article ID: KB31899 KB Last Updated: 06 Nov 2018Version: 2.0
Summary:

Tomcat is ‚Äčthe Next Generation Subscriber Management architecture on Junos OS, which is an architecture of much higher scale and higher performance.

This article provides the steps to enable Tomcat on Junos OS 15.1R4 and later versions on an MX router, which acts as BRAS.

 

Solution:

Mandatory Configuration

  1. set system services subscriber-management enable
  2. set chassis network-services enhanced-ip  << This configuration requires Trio-only line cards. It is suggested that MSDPC should not be installed in the chassis, which would be used as the Broadband Edge MX router.

  3. set system configuration-database max-db-size 314572800 << Adjust the configuration DB allocation of shared memory for SMI (300 MB is more than sufficient for most configurations.)

GRES (Strongly Recommended)

  1. set chassis redundancy graceful-switchover
  2. set routing-options nonstop-routing
  3. set system commit synchronize

*The whole system must be rebooted for the configuration to take effect after implementing the mandatory configuration.

 

Modification History:

2018-11-06: Added the sentence "*The whole system must be rebooted for the configuration to take effect after implementing the mandatory configuration." to the Solution section

 

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