Establishing an HA Connection Between Devices
NetScreen-50 15
6. Flip the power switch to the ON position.
7. After the NetScreen-50 device starts, check the following LEDs:
– The Power LED glows green.
– The Status LED blinks green.
– The Ethernet port LEDs for each connected interface glows or blinks
green. (For more details about interpreting the Link Status LEDs, see
“Ethernet Interfaces” on page 5.)
(67$%/,6+,1*$1+$&211(&7,21%(7:((1'(9,&(6
To assure continuous traffic flow in the event of system failure, you can cable and
configure two NetScreen devices in a redundant cluster. The devices propagate all
network, configuration and session information to each other. Should one device fail, the
other takes over the traffic processing.
The following diagram shows a typical HA setup for NetScreen-50 devices.
Routers
Switch 2
To HA1 to HA2 interfaces
To Untrust interface
Switch 4Switch 3
Internet
To Trust
interface
Device 1 Device 2
LAN
To Untrust interface
To Trust
interface
Switch 1
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