Cisco Cisco Packet Data Gateway (PDG)
SGSN Changes in Release 16
SGSN Enhancements for 16.0 ▀
Release Change Reference, StarOS Release 16 ▄
489
Mapping GSM-MAP cause code “unknown-subscriber” with diagnostic information indicating “gprs-
subscription-unknown” to a preferred GMM cause code.
Mapping GSM-MAP cause code “unknown-subscriber” with diagnostic information indicating “imsi-unknown”
to a preferred GMM cause code.
Override the GMM cause sent to the MS in a RAU Reject during context transfer failure.
Override the cause sent in a Deactivate Request, to an MS, due to the GGSN becoming unreachable.
Mapping an SM cause code for Deactivate PDP Requests during a path failure towards the GGSN.
Command Changes
local-cause-code-mapping map-cause-code
New keyword
unknown-subscriber
configures the SGSN to include a preferred GMM cause code, in Reject
messages to the UE, in place of MAP failure cause 'unknown-subscriber' for MAP failures and inbound RAU context
transfer failures. Optionally, the Operator can map a specific GMM cause code if the SGSN receives additional MAP
failure diagnostic information.
transfer failures. Optionally, the Operator can map a specific GMM cause code if the SGSN receives additional MAP
failure diagnostic information.
configure
call-control-profile profile_name
local-cause-code-mapping map-cause-code { roaming-not-allowed gmm-cause-code gmm-
cause | unknown-subscriber { gmm-cause-code gmm-cause | map-diag-info { gprs-
subscription-unknown gmm-cause-code gmm_cause | imsi-unknown gmm-cause-code gmm_cause } }
}
cause | unknown-subscriber { gmm-cause-code gmm-cause | map-diag-info { gprs-
subscription-unknown gmm-cause-code gmm_cause | imsi-unknown gmm-cause-code gmm_cause } }
}
remove local-cause-code-mapping map-cause-code { roaming-not-allowed | unknown-
subscriber { gmm-cause-code | map-diag-info { gprs-subscription-unknown | imsi-unknown
} } }
subscriber { gmm-cause-code | map-diag-info { gprs-subscription-unknown | imsi-unknown
} } }
end
Notes:
unknown-subscriber
Instructs the SGSN to send a different GPRS mobility management (GMM) cause code
to a UE when the UE’s access request is rejected due to map cause ‘unknown-subscriber’.
gmm-cause-code gmm_cause
identifies the replacement GMM cause code; options include:
gprs-serv-and-non-gprs-serv-not-allowed
gprs-serv-not-allowed
gprs-serv-not-in-this-plmn
location-area-not-allowed
network-failure
no-suitable-cell-in-this-la
plmn-not-allowed
roaming-not-allowed-in-this-la