Cisco Cisco Tunnel Terminating Gateway (TTG) Fascicule
MME Service Configuration Mode Commands
peer-sgsn ▀
Cisco ASR 5x00 Command Line Interface Reference ▄
6961
rac value
Specifies the Routing Area Code (RAC) used to facilitate a lookup for a specific peer SGSN as an integer
from 0 through 255.
from 0 through 255.
rnc value
Specifies the Radio Network Controller (RNC) identification number used to facilitate a lookup for a specific
peer SGSN as an integer from 0 through 65535.
peer SGSN as an integer from 0 through 65535.
lac value
Specifies the Location Area Code (LAC) value used to facilitate a lookup for a specific peer SGSN as an
integer from 0 through 65535.
integer from 0 through 65535.
address ip_address
Specifies an existing IP address of the peer SGSN in IPv4 dotted-decimal or IPv6 colon-separated-
hexadecimal notation.
hexadecimal notation.
capability [ gn ] [ gp ] [ s16 ] [ s3 ]
Configures the GTP interface capability of the peer SGSN.
gn
: Specifies that the peer SGSN is capable of communication over the Gn interface.
gp
: Specifies that the peer SGSN is capable of communication over the Gp interface.
s16
: Specifies that the peer SGSN is capable of communication over the S16 interface.
s3
: Specifies that the peer SGSN is capable of communication over the S3 interface.
Usage
Use this command to configure parameters that, when matched by an SGSN, specifies that SGSN as a peer
for inter-RAT relocations.
This command allows configuration for two relocation scenarios:
for inter-RAT relocations.
This command allows configuration for two relocation scenarios:
rai
: the lookup of an IP address for a peer MME based on the exact match of the RAI (and optionally
NRI).
rnc-id
: the lookup of an IP address for a peer SGSN based on the exact match of the RNC-ID.
Multiple peer-sgsn RNC-ID records can be configured for the same MCC/MNC/RNC, each with
different IP addresses. During a handover, if the initial peer SGSN rejects the forward relocation
request, the MME will step through any alternate peer SGSNs to attempt the handover.
different IP addresses. During a handover, if the initial peer SGSN rejects the forward relocation
request, the MME will step through any alternate peer SGSNs to attempt the handover.
Up to 32 peer-SGSN RAI and RNC-ID entries may be configured per MME service.
Example
The following command configures an SGSN lookup using RNC-ID parameters with Gn interface capability:
peer-sgsn rnc-id mcc 123 mnc 12 rnc 2000 address 10.2.3.4 capability gn