@startuml

skinparam monochrome true
skinparam defaultFontName Arial
skinparam classFontSize 10
skinparam sequenceBoxBorderColor #black
participant "**SSP Host**\nFS Control Service Gate" as hosta_fs_ctr 
participant "**SSP Host**\nAdministration Gate" as hosta_adm
participant "**Other Host**\nAdministration Gate" as hostb_adm
participant "**Other Host**\nFS Control Application Gate" as hostb_fs_ctr 
autonumber
...**Notation:**  Gate Identifier : Pipe Session Open on [P<sub>IN</sub>,P<sub>OUT</sub>]...
hostb_adm->hosta_adm:EVT_ADM_BIND [**FS_CTR,P<sub>20</sub>**]
hosta_adm->hostb_adm:EVT_ADM_BIND [**FS_CTR,P<sub>10</sub>**] 
note right : Pipe Session Open  on [P<sub>20</sub>,P<sub>10</sub>]
note left : Pipe Session Open on [P<sub>10</sub>,P<sub>20</sub>]
...
hostb_fs_ctr->hosta_fs_ctr: FS-ADMIN-CREATE-NODE-Service-Command [Parameters...] on P<sub>10</sub>
activate hosta_fs_ctr
activate hostb_fs_ctr
hosta_fs_ctr-->hostb_fs_ctr: eFS-OK on P<sub>20</sub> 
deactivate hostb_fs_ctr
deactivate hosta_fs_ctr
...
hostb_fs_ctr->hosta_fs_ctr: FS-OP-FILE-OPEN-Service-Command [Parameters...] on P<sub>10</sub>
activate hosta_fs_ctr
activate hostb_fs_ctr
hosta_fs_ctr-->hostb_fs_ctr: eFS-OK [FS_ID<sub>0001</sub>] on P<sub>20</sub> 
deactivate hostb_fs_ctr
deactivate hosta_fs_ctr
...
hostb_fs_ctr->hosta_fs_ctr: FS-OP-FILE-WRITE-Service-Command [FS_ID<sub>0001</sub>, Parameters, Data] on P<sub>10</sub>
activate hosta_fs_ctr
activate hostb_fs_ctr
hosta_fs_ctr-->hostb_fs_ctr: eFS-OK on P<sub>20</sub> 
deactivate hostb_fs_ctr
deactivate hosta_fs_ctr
...
hostb_fs_ctr->hosta_fs_ctr: FS-OP-FILE-CLOSE-Service-Command[FS_ID<sub>0001</sub>] on P<sub>10</sub>
activate hosta_fs_ctr
activate hostb_fs_ctr
hosta_fs_ctr-->hostb_fs_ctr: eFS-OK on P<sub>20</sub> 
deactivate hostb_fs_ctr
deactivate hosta_fs_ctr
@enduml