Notification and trigger dependencies

[ufocek]

Hi,

I have a sample connection:

Zabbix -- R1 -- R2 -- R3 --R4

zabbix - 192.168.111.250
R1 - 192.168.111.253
R2 - 192.168.111.254
R3 - 192.168.111.10
R4 - 192.168.111.9

and now I would like set notification when some router is down, and I create some scenarion, which options is a better:

1) scenario
R1 is down when:

{n1:net.tcp.port[192.168.111.253,22].max(60)}=0 & {n1:net.tcp.port[192.168.111.254,22].max(60)}=0 & {n1:net.tcp.port[192.168.111.10,22].max(60)}=0 & {n1:net.tcp.port[192.168.111.9,22].max(60)}=0

R2 is down when:

R1 have status 1 and other routers have status 0

R3 is down when:

R1 have status 1 and router R2 have too status 1 other routers have status 0

2) scenario

if I create a trigger dependencies

trigger R4 is down depends on trigger R3 is down, I get a message that the R4 is unreachable?
trigger R3 is down depends on trigger R2 is down, I get a message that the R3 is unreachable?
trigger R2 is down depends on trigger R2 is down, I get a message that the R1 is unreachable?

And what happens if fall just a router R4 or R1?