JUNOS Internet Software Network Operations Guide: Hardware
544 ! Understanding Redundant SIBs
Understanding Redundant SIBs
Purpose Inspect redundant SIBs to ensure that they provide the switching function to the
destination FPCs.
What Are Redundant
SIBs
Redundant SIBs are multiple SIBs that are installed in the M320 router, T320 router,
and the T640 routing node. In the event of a failure, one of the SIBs acts as backup
for the failed SIB. For more information, see “SIB Location and Redundancy” on
page 545.
Table 116 shows the SIB characteristics for the M320 router, T320 router, and the
T640 routing node.
Table 116: SIB Packet Forwarding Characteristics
Routing
Platform
Million Packets
per Second (Mpps)
Forwarding
Number of
SIBs per Chassis
Redundancy
M320 385 4 No
T320 320 3 Yes
T640 640 5 Yes
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