Figure F.2

@startuml

skinparam monochrome true

skinparam defaultFontName Arial

skinparam classFontSize 10

skinparam sequenceBoxBorderColor #black

participant "**Host A**\nCRON Control Service Gate" as hosta_cron_ctr 

participant "**Host A**\nAdministration Gate" as hosta_adm

participant "**Host B**\nAdministration Gate" as hostb_adm

participant "**Host B**\nCRON Control Application Gate" as hostb_cron_ctr 

autonumber

...**Notation:**  Gate Identifier : Pipe Session Open on [P<sub>IN</sub>,P<sub>OUT</sub>]...

hostb_adm->hosta_adm:EVT_ADM_BIND [**CRON_CTR,P<sub>20</sub>**]

hosta_adm->hostb_adm:EVT_ADM_BIND [**CRON_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_cron_ctr->hosta_cron_ctr: CRON-REQUEST-TIMER-Command [Parameters...] on P<sub>10</sub>

activate hosta_cron_ctr

activate hostb_cron_ctr

hosta_cron_ctr-->hostb_cron_ctr: eCRON-OK [CTX_ID<sub>0001</sub>]on P<sub>20</sub> 

deactivate hostb_cron_ctr

deactivate hosta_cron_ctr

...

...

hostb_cron_ctr->hosta_cron_ctr: CRON-KILL-TIMER-Command [CTX_ID<sub>0001</sub>] on P<sub>10</sub>

activate hosta_cron_ctr

activate hostb_cron_ctr

hosta_cron_ctr-->hostb_cron_ctr: eCRON-OK on P<sub>20</sub> 

deactivate hostb_cron_ctr

deactivate hosta_cron_ctr

@enduml