08-06-2013 07:11 AM
Hi everybody.
I found the nexus 7700 Fabric datasheet there was 220G per slot.
For example, the nexus 7710.
There was 220G per slot per fabric module and result is 6*220G*8=10560G, duplex is 21120G=21T.
How does the 42T came from?
08-06-2013 10:07 AM
Hi,
The 42 Tbps number Cisco are quoting is for the Nexus 7718 platform. If you look at the Cisco Nexus 7700 Switches Data Sheet you'll see it quotes:
The Cisco Nexus 7710 has six fabric module slots to provide simultaneously active fabric channels to each of the I/O and supervisor modules. Through the parallel forwarding fabric architecture, the Cisco Nexus 7710 can achieve 21 Tbps of forwarding capacity or more.
And for the Nexus 7718:
The Cisco Nexus 7700 18-Slot Switch has six fabric module slots to provide simultaneously active fabric channels to each of the I/O and supervisor modules. Through the parallel forwarding fabric architecture, the Cisco Nexus 7700 18-Slot Switch can achieve 42 Tbps of forwarding capacity or more.
So for the Nexus 7718 platform we have 220 Gbps * 6 Fabric Modules * 16 I/O slots totaling 21,120 Gbps. If we double that for full duplex we'll have 42,240 Gbps or 42 Tbps.
Regards
08-06-2013 06:21 PM
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