So Cisco's next big product overhaul is coming like a comet in 2009, or rather, like a big bang. Cisco is planning a significant campus product launch under the cutsie code-name "Big Bang," says Marie Hattar, vice present of network systems and security solutions marketing. It will follow this year's refresh of the data center with the Nexus 7000 line, and the edge router portfolio with the ASR 1000 series. Looks like 2009 is the year for the Big Bang, too.
Despite the jolt inspired by the code name, Hattar promises that Big Bang will be an "evolutionary" event for customers of Cisco's Catalyst 6500 switches, not a "forklift." To help ease the impact of Big Bang, Cisco does plan to incrementally enhance the Cat 6500 line before then to extend its lifespan, Hattar says.
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I guess the 80-Gbps-backplane SUP is coming...
I guess the 80-Gbps-backplane SUP is coming.
What?
Supervisor-720 (Sup-720) processors supports up to 720 Gbps of throughput on the backplane
80Gbps umm maybe 5 years ago.
80 Gibit/s on the backplane
80 Gibit/s on the backplane now is 40 Gibit/s !!!
80 Gbits per slot
The poster was referring (although not very clearly) to 80 Gbits per slot, compared to the maximum of 2x 20Gbit channels per slot today (40 Gbits).
6509 = 9 slots, so 40*9 = 360 Gbits max
If it were 80 Gbits per slot, then the SUP-720 could be fully used in theory.
The 6513 only has 7 slots @ 40 Gbits, the other 6 are maxed out at 8Gbits, so max throughput for 6513 would be 328 Gbits/sec.
The problem (to my understanding) is taht the max 20 Gbit/channel is not a function/limitation of any particular blade (SUPs included) but rather a limitation of the chassis itself. So in order to go 80 Gbits/sec per slot, you'd have to come up with a new chassis.
Nexus 7000 apparently can do some 15.x Terabits/sec (so about 20+ times more throughput than 6500) if you have all the right cards (10G each port)
"The chassis holds a maximum of 512 ports using 10Gb/s Ethernet modules, or 768 ports using 1Gb/s Ethernet modules. Throughput can reach over 15Tb/s, according to Cisco. The box is also compatible with upcoming 40- and 100Gb/s Ethernet technology when it arrives."
I'm not entirely sure I understand Cisco's motive to keep extending the 6500 chassis, because one would think they'd want people to forklift to the next platform and make more $. Could it be out of benevolence? That would be a first.
Maybe a chassis upgrade
Maybe a chassis upgrade thats compatible with the 6500 line cards hence no forklift.
I think they will have to move this way if they want these boxes to consistantly support FCoE and i imagine they will need to show a migration path from the current isolated SAN to consolidated FCoE S/LAN.
I feel these inputs would certainly help.
I feel these inputs would certainly help.
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