### JunosE 12.1.0 Release Notes

> ### Resolved Known Problems

> Release 12.1.0 is based on Release 12.0.0 and incorporates all problem resolutions found in that release. The following problems were reported open in Release 12.0.0 and have been resolved in this release, or have been resolved since the 12.0.0 release. For more information about particular resolved problems, you can log in to the JunosE Knowledge Base at https://www2.juniper.net/kb/, enter the defect ID number in the Search by Keyword field, and click Search.

> #### Forwarding

> - L2TP subscriber sessions gradually terminate when the following conditions are true: [Defect ID 188850]
> - MPLS is configured using equal-cost multipath (ECMP) links between a LAC device and an LNS device in an L2TP tunnel.
> - The LNS device contains an ES2 10G ADV LM with Service IOA as the tunnel server module.

> #### PPP

> - When you configure two pairs of line modules for stateful switchover on a router, specify the interim accounting interval as 10 minutes, configure the radiusSendAttribute log category to store RADIUS attributes added to accounting messages, and transmit traffic from subscribers to the core router, the value of the Acct-Session-Time RADIUS IETF attribute is incorrectly displayed in the radiusSendAttribute log after the interim accounting interval has elapsed and after a stateful line module switchover is performed. Also, if you have the interim accounting interval configured as 10 minutes, the value of the Acct-Session-Time attribute is incremented by 300 seconds instead of 600 seconds from one interval to another interim accounting interval. [Defect ID 187401]

> #### Stateful SRP Switchover (High Availability) and IP Tunnels

> - On E120 and E320 routers configured with an SRP module that contain a high availability pair of line modules, the primary SRP module intermittently resets when you perform a stateful SRP switchover after a stateful line module switchover is completed. This problem occurs only when login and logout of subscribers is in progress during the stateful line module switchover. [Defect ID 187444/187189/186836]

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