Cisco Cisco ASR 5000
Network Requested Secondary PDP Context Activation
▀ Monitoring and Troubleshooting the NRSPCA Feature
▄ SGSN Administration Guide, StarOS Release 18
Monitoring and Troubleshooting the NRSPCA Feature
The show subscriber sgsn-only/gprs-only full command indicates whether or not the Secondary PDP context
was network initiated. The last received BCM from the GGSN (applicable for Gn/Gp only) is also be
displayed.
displayed.
Two new disconnect reasons have been introduced:
sgsn-nrspca-actv-rej-by-ms – MS sends a Request Secondary PDP Context Activation Reject message
sgsn-nrspca-actv-rej-by-sgsn – For all other cases where NRSPCA context activation does not complete
successfully
Additional counters have been added to session management statistics in the output of the show gmm-sm
statistics command to represent the session management messages used by NRSPCA. Similarly, counters have
been added to the tunnel management statistics in the output of the show sgtpc statistics command. These
counters are described in the next section.
been added to the tunnel management statistics in the output of the show sgtpc statistics command. These
counters are described in the next section.
For NRSPCA activation failures, the Abort statistics in the verbose mode of the show gmm-sm statistics or
show gmm-sm statistics sm-only command outputs provide reasons for the failure. The various counters are
described in next section.
described in next section.
Network initiated flag in SCDRs will be set for NRSPCA PDP contexts. Note that network initiated flag is
present in only a few dictionaries, such custom24, custom13, and custom6.
NRSPCA show Commands
The following show commands are available in support of the NRSPCA feature:
show gmm-sm statistics sm-only – displays the Session Management messages exchanged for NRSPCA
activation.
show sgtpc statistics – displays the GTPC messages exchanged for NRSPCA activation.
show subscribers sgsn-only/gprs-only full – indicates whether or not the Secondary PDP context was network
initiated. Displays the last received BCM from the GGSN (applicable for Gn/Gp only).
show gmm-sm statistics sm-only
The following counters are included in the show gmm-sm statistics sm-only command output to support the NRSPCA
feature. For detailed descriptions of these statistics, refer to the ASR 5x00 Statistics and Counters Reference.
feature. For detailed descriptions of these statistics, refer to the ASR 5x00 Statistics and Counters Reference.
Table 26.
NRSPCA SM Statistics
NRSPCA SM Statistics
Activate Context Request
Actv-Request-Nrspca
3G-Actv-Request-Nrspca
3G-Actv-Request-Nrspca
2G-Actv-Request-Nrspca
Activate Context Request Retransmitted
3G-Secondary-Actv-Drop-Nrspca
2G-Secondary-Actv-Drop-Nrspca