Cisco Cisco ASR 5000
Topology-based Gateway Selection
▀ Configuring Topology-based GW Selection
▄ SGSN Administration Guide, StarOS Release 18
Verifying the GW Selection Configuration
Use the following command to display and verify the GW selection configuration in the call control profile
configuration. The output of this command displays all of the profile configuration and the GW-selection portion is
towards the bottom of the display.
configuration. The output of this command displays all of the profile configuration and the GW-selection portion is
towards the bottom of the display.
show call-control-profile full name profile_name
Configuring DNS Queries for the Gn/Gp-SGSN
Configuring the required S-NAPTR query functionality for the Gn/GP-SGSN involves enabling the S-NAPTR query
function and
function and
Use the follow commands to enable the SGSN to use GGSN S-NAPTR queries. This capability is defined on a per APN
basis.
basis.
configure
apn-profile profile_name
apn-resolve-dns-query snaptr [ epc-ue non-epc-ue ]
end
Notes:
epc-ue
- S-NAPTR queries applicable for EPC-capable UE.
non-epc-ue
- S-NAPTR queries applicable for non-EPC-capable UE.
If neither of the keywords are included, then S-NAPTR query is applicable to all UE, both EPC-capable UE and
non-EPC capable UE.
Use the following commands to identify the context where the DNS-client is configured. If this is not done then the S-
NAPTR DNS query will look for the DNS-client configuration in the context where the SGTP service is configured.
NAPTR DNS query will look for the DNS-client configuration in the context where the SGTP service is configured.
configure
call-control-profile profile_name
dns-pgw context context_name
end
Important:
Issuing this series of commands assumes that you have already created a DNS-client instance with
the
dns-client
command in the Context configuration mode and you have configured the DNS-client with the
commands in the DNS-Client configuration mode.
Verifying the DNS Queries Configuration for the Gn/Gp-SGSN
Use the following commands to display and verify the S-NAPTR DNS Query configuration in the APN profile
configuration and the call control profile configuration.
configuration and the call control profile configuration.