OsmoSGSN> enable
OsmoSGSN# show timer
T3312 = 600 s	Periodic RA Update timer (s) (default: 600 s)
T3313 = 30 s	Waiting for paging response timer (s) (default: 30 s)
T3314 = 44 s	READY timer. Force to STANDBY on expiry timer (s) (default: 44 s)
T3316 = 44 s	AA-Ready timer (s) (default: 44 s)
T3322 = 6 s	Detach request -> accept timer (s) (default: 6 s)
T3350 = 6 s	Waiting for ATT/RAU/TMSI_COMPL timer (s) (default: 6 s)
T3360 = 6 s	Waiting for AUTH/CIPH response timer (s) (default: 6 s)
T3370 = 6 s	Waiting for IDENTITY response timer (s) (default: 6 s)
T3385 = 8 s	Wait for ACT PDP CTX REQ timer (s) (default: 8 s)
T3386 = 8 s	Wait for MODIFY PDP CTX ACK timer (s) (default: 8 s)
T3395 = 8 s	Wait for DEACT PDP CTX ACK timer (s) (default: 8 s)
T3397 = 8 s	Wait for DEACT AA PDP CTX ACK timer (s) (default: 8 s)
X1001 = 5 s	RANAP Release timeout. Wait for RANAP Release Complete.On expiry release Iu connection (s) (default: 5 s)
OsmoSGSN# configure terminal
OsmoSGSN(config)# list
...
  sgsn
  ctrl
...
  ns
  bssgp
...

OsmoSGSN(config)# sgsn
OsmoSGSN(config-sgsn)# list
...
  gtp state-dir PATH
  gtp local-ip A.B.C.D
  ggsn <0-255> remote-ip A.B.C.D
  ggsn <0-255> gtp-version (0|1)
  ggsn <0-255> echo-interval <1-36000>
  ggsn <0-255> no echo-interval
  imsi-acl (add|del) IMSI
  auth-policy (accept-all|closed|acl-only|remote)
  authentication (optional|required)
  encryption gea <0-4> [<0-4>] [<0-4>] [<0-4>] [<0-4>]
  encryption uea <0-2> [<0-2>] [<0-2>]
  gsup ipa-name NAME
  gsup remote-ip A.B.C.D
  gsup remote-port <0-65535>
  gsup oap-id <0-65535>
  gsup oap-k K
  gsup oap-opc OPC
  apn APNAME ggsn <0-255>
  apn APNAME imsi-prefix IMSIPRE ggsn <0-255>
  access-point-name NAME
  no access-point-name NAME
  cdr filename NAME
  no cdr filename
  cdr trap
  no cdr trap
  cdr interval <1-2147483647>
  ggsn dynamic
  grx-dns-add A.B.C.D
  timer [TNNNN] [(<0-2147483647>|default)]
  timer gtp [TNNNN] [(<0-2147483647>|default)]
  no compression rfc1144
  compression rfc1144 active slots <1-256>
  compression rfc1144 passive
  no compression v42bis
  compression v42bis active direction (ms|sgsn|both) codewords <512-65535> strlen <6-250>
  compression v42bis passive
...

OsmoSGSN(config-sgsn)# mme test0
OsmoSGSN(config-sgsn-mme)# gtp remote-ip 1.2.3.4
OsmoSGSN(config-sgsn-mme)# gtp ran-info-relay 907 10 567
OsmoSGSN(config-sgsn-mme)# gtp ran-info-relay 202 12 51
OsmoSGSN(config-sgsn-mme)# gtp ran-info-relay 907 10 567
OsmoSGSN(config-sgsn-mme)# exit
OsmoSGSN(config-sgsn)# mme test1
OsmoSGSN(config-sgsn-mme)# gtp remote-ip 5.6.7.8
OsmoSGSN(config-sgsn-mme)# gtp ran-info-relay default
OsmoSGSN(config-sgsn-mme)# exit
OsmoSGSN(config-sgsn)# show running-config
...
sgsn
...
 mme test0
  gtp remote-ip 1.2.3.4
  gtp ran-info-relay 907 10 567
  gtp ran-info-relay 202 12 51
 mme test1
  gtp remote-ip 5.6.7.8
  gtp ran-info-relay default
...
OsmoSGSN(config-sgsn)# mme test0
OsmoSGSN(config-sgsn-mme)# gtp ran-info-relay default
% Another MME test1 is already set as default route, remove it before setting it here.
OsmoSGSN(config-sgsn-mme)# exit
OsmoSGSN(config-sgsn)# mme test1
OsmoSGSN(config-sgsn-mme)# no gtp ran-info-relay default
OsmoSGSN(config-sgsn-mme)# exit
OsmoSGSN(config-sgsn)# mme test0
OsmoSGSN(config-sgsn-mme)# gtp ran-info-relay default
OsmoSGSN(config-sgsn-mme)# exit
OsmoSGSN(config-sgsn)# show running-config
...
sgsn
...
 mme test0
  gtp remote-ip 1.2.3.4
  gtp ran-info-relay default
  gtp ran-info-relay 907 10 567
  gtp ran-info-relay 202 12 51
 mme test1
  gtp remote-ip 5.6.7.8
...
OsmoSGSN(config-sgsn)# no mme test0
OsmoSGSN(config-sgsn)# show running-config
...
sgsn
...
 no compression v42bis
 mme test1
  gtp remote-ip 5.6.7.8
...
OsmoSGSN(config-sgsn)# no mme test1