A Peek Inside a 400G Cisco Network Chip

Re:A Peek Inside a 400G Cisco Network Chip by pavs on Thursday September 14, 2017 @07:47PM (#15253442)

100G has been around for a while and not that common in usage, other than extreme cases. 10g and 40G are still the most widely used ports. Considering that most switches and routers have a minimum 10-20 ports (10g-40g), that's already a stupendous amount of BW - and on routers, you can always add more cards. 100g routers/switches are very expensive.

Unless you are pushing google/facebook/Comcast level traffic - there are very few use cases. Apparently, Google/Facebook uses their own network hardware.

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Re:A Peek Inside a 400G Cisco Network Chip by rnxrx on Thursday September 14, 2017 @08:44PM (#15253702)

This isn't really true in the market today. 100G switches have emerged at roughly the same cost per port as 40G from a couple of years ago and, indeed, can often accept both 40 and 100 gig optics. Even at list price the cost per port for 100G switching has been under $1K for more than a year.

As a result it's actually fairly common to find new DC fabrics (read: inter-switch connections, not end hosts) being built with 100G because there's no significant economic disadvantage to doing so. That said, the pricing for inter-site 100G is still high enough that it hasn't commonly made its way to smaller organizations.

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Re:A Peek Inside a 400G Cisco Network Chip by kingosticks on Friday September 15, 2017 @04:15AM (#15255511)

Google, Apple and Facebook also use commercial network products for the points in there networks where they need to go fast, just like everyone else.

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