NOTE:
Four fabric planes must be active at any time in a chassis cluster. If
fewer than four fabric planes are active, then the Redundancy Group (RG1+)
will fail over to the secondary node.
shows the minimum fabric plane requirements for the
SCB.
Table 55: Expected Device Behavior and Minimum SRX5K-SCBE and
Fabric Plane Requirements
Expected Behavior After the SCB
and Routing Engine are Removed
Redundant
Planes
Active
Planes
Number of
SRX5K-SCBs
Platform
If the SCB in the primary node fails, the
device will fail over to the secondary
node as the primary node powers off.
0 (virtual)
4 (virtual)
1
SRX5400
If the active SCB in the primary node
fails, the behavior of the device does
not change as the redundant SCB
becomes active provided all four fabric
planes are in good condition.
If the second SCB in the primary node
fails, the device will fail over to the
secondary node as the primary node
powers off.
4 (virtual)
4 (virtual)
2
SRX5600
This device supports one SCB for two
fabric planes, providing a redundancy
of three SCBs. If the active SCB fails,
the device behavior does not change
as the remaining two SCBs fulfill the
requirement to have four fabric planes.
If the second SCB also fails, no spare
planes are available in the chassis
triggering inter-chassis redundancy.
Therefore, RG1+ will fail over to the
secondary node.
2
4
3
SRX5800
NOTE:
In SRX5600 and SRX5800 Services Gateways, failover does not
happen when the secondary Routing Engine in slot 1 fails, while the SCB in
slot 1 is inactive.
For detailed information about chassis cluster, see the
Chassis Cluster Feature Guide for
at
.
Related
Documentation
SRX5800 Services Gateway Description
•
•
SRX5600 Services Gateway Description
Copyright © 2017, Juniper Networks, Inc.
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SRX5400 Services Gateway Hardware Guide
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