Cisco Cisco ASR 5000
PGW Restart Notification in S4-SGSN
Configuring PGW Restart Notification in S4-SGSN ▀
SGSN Administration Guide, StarOS Release 18 ▄
Configuring PGW Restart Notification in S4-SGSN
The following commands are used to configure the PGW restart notification support in the S4-SGSN:
Configure Node IE For PRN Advertisement
The following CLI command configures advertisement of PGW Restart Notification in echo request/response messages.
This is an existing CLI command under the EGTP Service Configuration mode which has to be configured in order to
inform SGW that S4-SGSN supports receiving PRN. The command option
This is an existing CLI command under the EGTP Service Configuration mode which has to be configured in order to
inform SGW that S4-SGSN supports receiving PRN. The command option
node-feature pgw-restart-
notification
has to be configured in order to inform SGW that S4-SGSN supports receiving PRN.
configure
context context_name
egtp_service service_name
gtpc { allow-on-congestion { apn-name apn_name | arp priority_level } | bind {
ipv4-address ipv4_address [ ipv6-address ipv6_address ] | ipv6-address ipv6_address [
ipv4-address ipv4_address ] } | echo-interval seconds [ dynamic [ smooth-factor
multiplier ] ] | echo-retransmission-timeout seconds | error-response-handling | ip qos-
dscp { forwarding_type } | max-retransmissions num | node-feature pgw-restart-
notification | path-failure detection-policy echo | private-extension overcharge-
protection | retransmission-timeout seconds }
ipv4-address ipv4_address [ ipv6-address ipv6_address ] | ipv6-address ipv6_address [
ipv4-address ipv4_address ] } | echo-interval seconds [ dynamic [ smooth-factor
multiplier ] ] | echo-retransmission-timeout seconds | error-response-handling | ip qos-
dscp { forwarding_type } | max-retransmissions num | node-feature pgw-restart-
notification | path-failure detection-policy echo | private-extension overcharge-
protection | retransmission-timeout seconds }
exit
Configure Default APN Restoration Priority
The following CLI command configures APN restoration priority for an APN profile:
configure
apn-profile profile_name
apn-restoration priority priority_value
exit
Notes:
The PGW Restart Notification (PRN) message is sent by the S-GW when it detects a peer P-GW has re-started.
The S4-SGSN on receiving the PRN message, uses the default apn-restoration priority value, if priority value is
not available in HSS Subscription to prioritize the affected PDN connections for restoration. To restore PDN it
is mandatory to get priority value from HSS in subscription record or default value must be configured under
apn-profile.
not available in HSS Subscription to prioritize the affected PDN connections for restoration. To restore PDN it
is mandatory to get priority value from HSS in subscription record or default value must be configured under
apn-profile.
The priority value is an integer value from 1 through 16. Where “1” is the highest priority and “16” is the lowest
priority.