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Presentation_ID
24
Dual-FIA
8xNPs
Linecard
FIA0
FIA1
RSP1
Single-FIA
4xNPs
Linecard
Switch Fabric Overview
Crossbar
Fabric
ASIC
Crossbar
Fabric
ASIC
Crossbar
Fabric
ASIC
Crossbar
Fabric
ASIC
RSP0
4x23Gbps =92Gbps with dual RSP
2x23Gbps=46Gbps with single RSP
Switch fabric physically resides on RSP, but operate separately from RSP
Separate data and arbitration paths
All fabric data channels run in active mode. Arbiter is in active/standby mode, which is
controlled by low level hardware signalling
Each LC has one or two fabric interface ASIC (FIA), which provide line rate bandwidth
per slot with single RSP. Dual RSP provide extra (double) fabric bandwidth per slot
23Gbps per fabric channel
8x23Gbps =184Gbps with dual RSP
4x23Gbps=92Gbps with single RSP
FIA
Arbiter
Arbiter
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