Cisco Cisco Packet Data Interworking Function (PDIF) Prospecto
MME Service Configuration Mode Commands
nri ▀
Cisco ASR 5x00 Command Line Interface Reference ▄
6957
nri
Configures the network resource identifier (NRI) length used for source SGSN discovery via NRI-FQDN (Fully
Qualified Domain Name) based DNS resolution.
Qualified Domain Name) based DNS resolution.
Product
MME
Privilege
Administrator
Mode
Exec > Global Configuration > Context Configuration > MME Service
configure > context context_name > mme-service service_name
Entering the above command sequence results in the following prompt:
[context_name]host_name(config-mme-service)#
Syntax
[ no ] nri length length plmn-id mcc mcc_value mnc mnc_value
no
Removes a configured NRI length.
length length
Specifies the number of bits to be used in the P-TMSI (bits 23 to 18) to define the NRI as an integer from 1
through 8.
through 8.
plmn-id mcc mcc_value mnc mnc_value
Specifies the PLMN-ID of the SGSN pool.
mcc mcc_value
: Specifies the mobile country code (MCC) portion of the PLMN identifier as an integer
from 100 through 999.
mnc mnc_value
: Specifies the mobile network code (MNC) portion of the PLMN identifier as a 2- or 3-
digit integer from 00 through 999.
Usage
Use this command to retrieve the NRI (identity of an SGSN) stored in bits 23 to 18 of the packet-temporary
mobile subscriber identity (P-TMSI). Up to eight NRI length values can be configured.
mobile subscriber identity (P-TMSI). Up to eight NRI length values can be configured.
Important:
In the absence of this configuration, the MME treats the NRI as invalid. The MME will use a plain
RAI-based FQDN (and not an NRI-based FQDN) for DNS queries made to resolve the source SGSN.
Example
The following command creates an NRI length of
5
and associates it with an SGSN pool with the PLMN-ID
of
123
:
nri length 5 plmnid mcc 123 mnc 23