rnxrx

7 ms·

61.
by rnxrx 8y ago
Working from the 10K end-host number in the paper with a radix of 43 and 722 total router nodes, it’s the case that a given switch connects ~15 end-hosts. Fifteen downlinks to 43 uplinks seems pretty wasteful in its own right. The numbers
62.
by rnxrx 9y ago
Routers absolutely do fragment packets (...at least those that don't have the DF bit set) but it's up to the receiving host to reassemble the fragments.
63.
by rnxrx 9y ago
Possibly, but it's in the right neighborhood. It depends on whether we're counting from the time of design/initial fabrication or actual mass production and general sale. The point is that 12.5Gb/s SerDes pretty much me
64.
by rnxrx 9y ago
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
65.
by rnxrx 9y ago
As impressive as this is, it's likely 3-4 generations back from what's currently shipping. It's a switch-on-chip (SoC) set up for 12.5 Gbit SerDes. As pointed out elsewhere, it might have been deployed for 16 10G front panel
66.
by rnxrx 9y ago
It was "solved" in some general sense but was never implemented widely or consistently. It was traditionally a really clunky and fragile system (e-mail forms) that ended up being really limited in its utility because it wasn&#x27
67.
by rnxrx 9y ago
Operational complexity. For a carrier the size of Verizon to build an authoritative list of prefixes to advertise they would have to have a registration process for every single customer, peer, etc that was both reliable and up to the minu
68.
by rnxrx 9y ago
It's been quite mainstream in certain contexts and geographies for a number of years now. As an example - most handsets on modern LTE (and newer) networks have been strong-majority v6 for quite a while. The fact that this hasn'
69.
by rnxrx 10y ago
The network piece seems kind of incomplete and outdated when compared to what's being discussed in terms of compute and storage. Most of the new networking fabrics being built at this point are 100G, with emerging server connectivity