On 17 Mar, 2011, at 12:07 am, Richard Scheffenegger wrote: > IEEE 802.1Qau is becoming available with CNA (converged network adapter), 10G > NIC that also have FCoE hardware on-board. > > This throttles individual flows - provided the entire end-to-end network also > supports 802.1Qau (Quantizied Congestion Notification), as a decent enough > flow granularity. > > Deploying this in core networks will require a forklift upgrade, as current > widely deployed 10G switches don't support QCN.
Well that's an engineering failure - unless, of course, non-TCP/IP traffic is predominant in the environments these are put into. In any case, this is not a solution for the Internet. > On another page, cheap, widely deployed Broadcom L3 ASICs (found in the > low-end hardware of major network vendors) support RED in hardware - however, > OEM firmware typically doesn't allow the configuration of the full feature > set. (DCTCP as a TCP-based QCN-like was demonstrated with custom broadcom > firmware doing the ECN marking based, soley based on current queue depth). Ah, market segmentation, how do I hate thee? Let me count the ways. - Jonathan _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
