I just got my hands on Nexus 7010 last week.
First thing that I noticed is that the box is very deep. Its back is protruding towards the aisle between data center rows.
It is 33.1" deep (as opposed to 6509's 18.2").
Nexus decouples fabric from the supervisor and the fabric is scalable (can be upgraded up to 5 fabric modules). Fabric cards are inserted from the back.
It has front-bottom to read-top air flow.
There are -
- 2 fan tray for supervisor and linecards (6 fans in each tray)
- 2 fan for fabric.
All the fans are hot-swappable.
Cisco claims first generation fabric linecard (N7K-C7010-FAB-1) can forward 46Gpbs - thus fully populated 5 fabric cards can forward up to 46 x 5 = 230Gbps.
Currently shipping supervisor 1 bandwidth is 115Gpbs/slot and the bandwidth of I/O linecard is 230Gbps.
According to Cisco maths, 7010 has maximum bandwidth of -
230Gbps / slot x 8 slots = 1840Gbps (I/O linecard)
115Gbps / slot x 2 slots = 230Gbps (sup)
(1840 + 230) x 2 (for full duplex operations) = 4.1 Tbps system.
(6500 with sup-720 is, as it name applies, a 720Gbps system.)
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