Cisco Cisco ASR 5000
Topology-based Gateway Selection
Configuring Topology-based GW Selection ▀
SGSN Administration Guide, StarOS Release 18 ▄
show apn-profile full name profile_name
show call-control-profile full name profile_name
Configuring DNS Queries for the S4-SGSN
Use the following commands to identify the context where the DNS-client is configured. If this is not done then the S-
NAPTR DNS queries based on either APN-FQDN or RAI-FQDN will look for the DNS-client configuration in the
context where the eGTP service is configured.
NAPTR DNS queries based on either APN-FQDN or RAI-FQDN will look for the DNS-client configuration in the
context where the eGTP service is configured.
configure
call-control-profile profile_name
dns-pgw context context_name
dns-sgw 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 S4-SGSN
Use the following commands to display and verify the S-NAPTR DNS Query configuration in the call control profile
configuration.
configuration.
show call-control-profile full name profile_name
Configuring the Canonical Node Name for the Gn/Gp-SGSN
In order for the Gn/Gp-SGSN to support Topological Gateway Selection, use the following commands to define the
SGSN’s canonical node name in the SGSN’s configuration. (This is not needed for the S4-SGSN).
SGSN’s canonical node name in the SGSN’s configuration. (This is not needed for the S4-SGSN).
configure
sgsn-global
canonical-node-name canonical_node_name
end
Notes:
canonical_node_name
is a fully or properly qualified domain name; for example
sgsn.div.bng.kar.3gppnetwork.org