Cisco Cisco ASR 5000
PGW Restart Notification in S4-SGSN
▀ Monitoring and Troubleshooting PRN support in S4-SGSN
▄ SGSN Administration Guide, StarOS Release 18
show session disconnect-reasons verbose
The following disconnect reason is used to track both PGW Restart or path failure and SGW path failure:
sgsn-gtpc-path-failure(267)