On 11/22/2014 12:17 PM, Octavio Alvarez wrote:
On 11/22/2014 11:43 AM, Mark Tinka wrote:
On Saturday, November 22, 2014 02:16:23 AM Octavio Alvarez
wrote:
If I found a vendor that did that, I would run away from
it for lying.
But they all do that.
What is more confusing is when vendors use half-duplex
bandwidth to make a line card seem faster, e.g., a 30Gbps
line card is sold as a 60Gbps if traffic flows in only one
direction.
This is different.
A line card can support 60 Gbps of *processing power* if it can handle a
full-duplex 30 Gbps interface because it has to process all the data at
the same time in the worst case. This is correct. And so on: consider a
two full-duplex 30 Gbps port line card: it would need the necessary
power to handle 120 Gbps of data if you want it to not block or
oversubscribe.
Before anything else happens:
I guess I misread your message. I get your point now. The line card
itself is only 30 Gpbs, but because the traffic is not full-duplex (and
it will never be) they sell it as a 60 Gbps. Yeah, that sucks too.
Sorry for my confusion and the generated noise.
_______________________________________________
cisco-nsp mailing list cisco-nsp@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/
