OsmoMSC> enable
OsmoMSC# list
...
  show neighbor
  show neighbor (a|iu) (ran-pc|msc-ipa-name) RAN_PC_OR_MSC_IPA_NAME
  show neighbor (a|iu)
  show neighbor (a|iu) lac <0-65535>
  show neighbor (a|iu) lac-ci <0-65535> <0-65535>
  show neighbor (a|iu) cgi <0-999> <0-999> <0-65535> <0-65535>
  show neighbor lac <0-65535>
  show neighbor lac-ci <0-65535> <0-65535>
  show neighbor cgi <0-999> <0-999> <0-65535> <0-65535>
...

OsmoMSC# configure terminal
OsmoMSC(config)# msc

OsmoMSC(config-msc)# list
...
  neighbor (a|iu) lac <0-65535> (ran-pc|msc-ipa-name) RAN_PC_OR_MSC_IPA_NAME
  neighbor (a|iu) lac-ci <0-65535> <0-65535> (ran-pc|msc-ipa-name) RAN_PC_OR_MSC_IPA_NAME
  neighbor (a|iu) cgi <0-999> <0-999> <0-65535> <0-65535> (ran-pc|msc-ipa-name) RAN_PC_OR_MSC_IPA_NAME
  no neighbor (a|iu) (ran-pc|msc-ipa-name) RAN_PC_OR_MSC_IPA_NAME
...

OsmoMSC(config-msc)# neighbor?
  neighbor  Add Handover target configuration

OsmoMSC(config-msc)# neighbor ?
  a   Neighbor on GERAN-A
  iu  Neighbor on UTRAN-Iu

OsmoMSC(config-msc)# neighbor a ?
  lac     Handover target cell by LAC
  lac-ci  Handover target cell by LAC and CI
  cgi     Handover target cell by Cell-Global Identifier (MCC, MNC, LAC, CI)

OsmoMSC(config-msc)# neighbor a lac ?
  <0-65535>  LAC

OsmoMSC(config-msc)# neighbor a lac 1 ?
  ran-pc        SCCP point code of RAN peer
  msc-ipa-name  GSUP IPA name of target MSC

OsmoMSC(config-msc)# neighbor a lac 1 ran-pc ?
  RAN_PC_OR_MSC_IPA_NAME  Point code or MSC IPA name value

OsmoMSC(config-msc)# neighbor iu lac-ci ?
  <0-65535>  LAC

OsmoMSC(config-msc)# neighbor iu lac-ci 1 ?
  <0-65535>  CI

OsmoMSC(config-msc)# neighbor iu lac-ci 1 2 ?
  ran-pc        SCCP point code of RAN peer
  msc-ipa-name  GSUP IPA name of target MSC

OsmoMSC(config-msc)# neighbor iu lac-ci 1 2 msc-ipa-name ?
  RAN_PC_OR_MSC_IPA_NAME  Point code or MSC IPA name value

OsmoMSC(config-msc)# neighbor a cgi ?
  <0-999>  MCC

OsmoMSC(config-msc)# neighbor a cgi 1 ?
  <0-999>  MNC

OsmoMSC(config-msc)# neighbor a cgi 1 2 ?
  <0-65535>  LAC

OsmoMSC(config-msc)# neighbor a cgi 1 2 3 ?
  <0-65535>  CI

OsmoMSC(config-msc)# neighbor a lac 11 ran-pc 1.2.3
OsmoMSC(config-msc)# neighbor a lac-ci 11 12 ran-pc 1.2.3
OsmoMSC(config-msc)# neighbor a cgi 901 70 11 13 ran-pc 1.2.3

OsmoMSC(config-msc)# neighbor iu lac 11 ran-pc 2.3.4
OsmoMSC(config-msc)# neighbor iu lac-ci 11 22 ran-pc 2.3.4
OsmoMSC(config-msc)# neighbor iu cgi 901 070 11 23 ran-pc 2.3.4

OsmoMSC(config-msc)# neighbor a lac 65535 msc-ipa-name msc-901-70-2
OsmoMSC(config-msc)# neighbor a lac-ci 65535 65533 msc-ipa-name msc-901-70-2
OsmoMSC(config-msc)# neighbor a cgi 901 70 65535 65531 msc-ipa-name msc-901-70-2

OsmoMSC(config-msc)# neighbor iu lac 65529 msc-ipa-name msc-901-70-2
OsmoMSC(config-msc)# neighbor iu lac-ci 65529 65528 msc-ipa-name msc-901-70-2
OsmoMSC(config-msc)# neighbor iu cgi 901 070 65529 65527 msc-ipa-name msc-901-70-2


OsmoMSC(config-msc)# #  Add the same entries again, but expect them to exist only once below
OsmoMSC(config-msc)# neighbor a lac 11 ran-pc 1.2.3
OsmoMSC(config-msc)# neighbor a lac-ci 11 12 ran-pc 1.2.3
OsmoMSC(config-msc)# neighbor a cgi 901 70 11 13 ran-pc 1.2.3

OsmoMSC(config-msc)# neighbor iu lac 11 ran-pc 2.3.4
OsmoMSC(config-msc)# neighbor iu lac-ci 11 22 ran-pc 2.3.4
OsmoMSC(config-msc)# neighbor iu cgi 901 070 11 23 ran-pc 2.3.4

OsmoMSC(config-msc)# neighbor a lac 65535 msc-ipa-name msc-901-70-2
OsmoMSC(config-msc)# neighbor a lac-ci 65535 65533 msc-ipa-name msc-901-70-2
OsmoMSC(config-msc)# neighbor a cgi 901 70 65535 65531 msc-ipa-name msc-901-70-2

OsmoMSC(config-msc)# neighbor iu lac 65529 msc-ipa-name msc-901-70-2
OsmoMSC(config-msc)# neighbor iu lac-ci 65529 65528 msc-ipa-name msc-901-70-2
OsmoMSC(config-msc)# neighbor iu cgi 901 070 65529 65527 msc-ipa-name msc-901-70-2

OsmoMSC(config-msc)# do show neighbor
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a lac-ci 11 12 ran-pc 1.2.3
 neighbor a cgi 901 70 11 13 ran-pc 1.2.3
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu lac-ci 11 22 ran-pc 2.3.4
 neighbor iu cgi 901 070 11 23 ran-pc 2.3.4
 neighbor a lac 65535 msc-ipa-name msc-901-70-2
 neighbor a lac-ci 65535 65533 msc-ipa-name msc-901-70-2
 neighbor a cgi 901 70 65535 65531 msc-ipa-name msc-901-70-2
 neighbor iu lac 65529 msc-ipa-name msc-901-70-2
 neighbor iu lac-ci 65529 65528 msc-ipa-name msc-901-70-2
 neighbor iu cgi 901 070 65529 65527 msc-ipa-name msc-901-70-2

OsmoMSC(config-msc)# do show neighbor a
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a lac-ci 11 12 ran-pc 1.2.3
 neighbor a cgi 901 70 11 13 ran-pc 1.2.3
 neighbor a lac 65535 msc-ipa-name msc-901-70-2
 neighbor a lac-ci 65535 65533 msc-ipa-name msc-901-70-2
 neighbor a cgi 901 70 65535 65531 msc-ipa-name msc-901-70-2

OsmoMSC(config-msc)# do show neighbor iu
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu lac-ci 11 22 ran-pc 2.3.4
 neighbor iu cgi 901 070 11 23 ran-pc 2.3.4
 neighbor iu lac 65529 msc-ipa-name msc-901-70-2
 neighbor iu lac-ci 65529 65528 msc-ipa-name msc-901-70-2
 neighbor iu cgi 901 070 65529 65527 msc-ipa-name msc-901-70-2

OsmoMSC(config-msc)# do show neighbor a ran-pc 1.2.3
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a lac-ci 11 12 ran-pc 1.2.3
 neighbor a cgi 901 70 11 13 ran-pc 1.2.3

OsmoMSC(config-msc)# do show neighbor iu ran-pc 2.3.4
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu lac-ci 11 22 ran-pc 2.3.4
 neighbor iu cgi 901 070 11 23 ran-pc 2.3.4

OsmoMSC(config-msc)# #  A cell id that has no ci matches any entries that feature the LAC.
OsmoMSC(config-msc)# #  Ambiguous matches are user config error, permitted here but cause error logging during HO
OsmoMSC(config-msc)# do show neighbor a lac 11
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a lac-ci 11 12 ran-pc 1.2.3
 neighbor a cgi 901 70 11 13 ran-pc 1.2.3

OsmoMSC(config-msc)# #  The fuzzy matching goes both ways. Same as above.
OsmoMSC(config-msc)# do show neighbor a lac-ci 11 12
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a lac-ci 11 12 ran-pc 1.2.3

OsmoMSC(config-msc)# do show neighbor a lac-ci 11 13
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a cgi 901 70 11 13 ran-pc 1.2.3

OsmoMSC(config-msc)# do show neighbor a cgi 901 70 11 13
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a cgi 901 70 11 13 ran-pc 1.2.3

OsmoMSC(config-msc)# do show neighbor iu lac 11
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu lac-ci 11 22 ran-pc 2.3.4
 neighbor iu cgi 901 070 11 23 ran-pc 2.3.4

OsmoMSC(config-msc)# do show neighbor iu lac-ci 11 22
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu lac-ci 11 22 ran-pc 2.3.4

OsmoMSC(config-msc)# do show neighbor iu lac-ci 11 23
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu cgi 901 070 11 23 ran-pc 2.3.4

OsmoMSC(config-msc)# do show neighbor iu cgi 901 70 11 23
 neighbor iu lac 11 ran-pc 2.3.4
OsmoMSC(config-msc)# do show neighbor iu cgi 901 070 11 23
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu cgi 901 070 11 23 ran-pc 2.3.4

OsmoMSC(config-msc)# do show neighbor lac 11
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a lac-ci 11 12 ran-pc 1.2.3
 neighbor a cgi 901 70 11 13 ran-pc 1.2.3
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu lac-ci 11 22 ran-pc 2.3.4
 neighbor iu cgi 901 070 11 23 ran-pc 2.3.4

OsmoMSC(config-msc)# do show neighbor lac-ci 11 12
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a lac-ci 11 12 ran-pc 1.2.3
 neighbor iu lac 11 ran-pc 2.3.4

OsmoMSC(config-msc)# do show neighbor lac-ci 11 13
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a cgi 901 70 11 13 ran-pc 1.2.3
 neighbor iu lac 11 ran-pc 2.3.4

OsmoMSC(config-msc)# do show neighbor cgi 901 70 11 13
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a cgi 901 70 11 13 ran-pc 1.2.3
 neighbor iu lac 11 ran-pc 2.3.4

OsmoMSC(config-msc)# do show neighbor lac-ci 11 22
 neighbor a lac 11 ran-pc 1.2.3
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu lac-ci 11 22 ran-pc 2.3.4

OsmoMSC(config-msc)# do show neighbor lac-ci 11 23
 neighbor a lac 11 ran-pc 1.2.3
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu cgi 901 070 11 23 ran-pc 2.3.4

OsmoMSC(config-msc)# do show neighbor cgi 901 70 11 23
 neighbor a lac 11 ran-pc 1.2.3
 neighbor iu lac 11 ran-pc 2.3.4
OsmoMSC(config-msc)# do show neighbor cgi 901 070 11 23
 neighbor a lac 11 ran-pc 1.2.3
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu cgi 901 070 11 23 ran-pc 2.3.4

OsmoMSC(config-msc)# #  Ambiguous neighbor config is permitted
OsmoMSC(config-msc)# #  This config maps LAC 65535 to two distinct MSCs as well as a local RAN cell.
OsmoMSC(config-msc)# #  It is a user config mistake, will cause error logging during handover.
OsmoMSC(config-msc)# neighbor a lac 65535 ran-pc 6.6.6
OsmoMSC(config-msc)# neighbor a lac-ci 65535 65533 msc-ipa-name different-msc
OsmoMSC(config-msc)# do show neighbor a lac 65535
 neighbor a lac 65535 msc-ipa-name msc-901-70-2
 neighbor a lac-ci 65535 65533 msc-ipa-name msc-901-70-2
 neighbor a cgi 901 70 65535 65531 msc-ipa-name msc-901-70-2
 neighbor a lac 65535 ran-pc 6.6.6
 neighbor a lac-ci 65535 65533 msc-ipa-name different-msc

OsmoMSC(config-msc)# show running-config
...
msc
...
 neighbor a lac 11 ran-pc 1.2.3
 neighbor a lac-ci 11 12 ran-pc 1.2.3
 neighbor a cgi 901 70 11 13 ran-pc 1.2.3
 neighbor iu lac 11 ran-pc 2.3.4
 neighbor iu lac-ci 11 22 ran-pc 2.3.4
 neighbor iu cgi 901 070 11 23 ran-pc 2.3.4
 neighbor a lac 65535 msc-ipa-name msc-901-70-2
 neighbor a lac-ci 65535 65533 msc-ipa-name msc-901-70-2
 neighbor a cgi 901 70 65535 65531 msc-ipa-name msc-901-70-2
 neighbor iu lac 65529 msc-ipa-name msc-901-70-2
 neighbor iu lac-ci 65529 65528 msc-ipa-name msc-901-70-2
 neighbor iu cgi 901 070 65529 65527 msc-ipa-name msc-901-70-2
 neighbor a lac 65535 ran-pc 6.6.6
 neighbor a lac-ci 65535 65533 msc-ipa-name different-msc
...