Table 58: Expected Device Behavior And Minimum Srx5K-Scbe And Fabric - Juniper SRX5800 Hardware Manual

SRX5800 Services Gateway Hardware Guide
274
NOTE: We strongly recommend that you perform the ISHU during a
maintenance window, or during the lowest possible traffic as the secondary
node is not available at this time.
NOTE: The SRX5K-SCBE and SRX5K-RE-1800X4 are not hot-swappable.
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.
Table 58 on page 274
SCB.
Table 58: Expected Device Behavior and Minimum SRX5K-SCBE and
Fabric Plane Requirements
Number of
Platform SRX5K-SCBs
SRX5400 1
SRX5600 2
SRX5800 3
shows the minimum fabric plane requirements for the
Active Redundant Expected Behavior After the SCB
Planes Planes and Routing Engine are Removed
4 (virtual) 0 (virtual) If the 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) 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 2 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.
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