Mikael, very very helpful, thanks. I now understand what you are trying to prove/test in your experiments, but there is definitely a need for cake when the dominant use is hi-bitrate WiFi (AC1900) talking to one or more 1 GigE wired paths. And hi bitrate WiFi itself has significantly variable rate capability so it probably needs more feedback than cake might provide to deal with variability. Since 100+ Mb/sec is supplied by many Internet Access Providers now, it's timely to be able to process packets coming at those rates on the wireline side carried over 1 GigE (my provider, RCN, claims to offer 110+ here in Needham, but with an odd requirement that I buy their router if I get that service - I am trying to get to the bottom of what that is before I upgrade or switch to one of the two other providers, Comcast and Verizon. Maybe it is just that they want customers to not get screwed up if they have a router without 1GigE WAN adapter, complaining that they can't get 110.). I'd like to see both whatever I get from the IAP, and also what my in-home NAS can provide, along with other services.
On Tuesday, June 30, 2015 3:58pm, "Mikael Abrahamsson" <[email protected]> said: > On Tue, 30 Jun 2015, [email protected] wrote: > > > What happens if the SoC ports aren't saturated, but the link is GigE? > > That is, suppose this is an access link to a GigE home or office LAN > > with wired servers? > > As far as I can tell, the device looks like this: > > wifi2------ > wifi1----\| > SOC2 6-| > SOC1 5-| > WAN 4-| > LAN1 3-| (switch) > LAN2 2-| > LAN3 1-| > LAN4 0-| > > LAN1-4 and SOC2 is in one vlan, and SOC1 and WAN is in a second vlan. This > basically means there is no way to get traffic into SOC1 that goes out > SOC2 that will saturate either port, because they're both gige. Only way > to saturate the SOC port would be if the SOC itself "created" traffic, for > instance by being a fileserver, or if there is significant traffic on the > wifi (which has PCI-E connectivity). > > So it's impossible to congest SOC1 or SOC2 (egress) by running traffic > LAN<->WAN alone. > > -- > Mikael Abrahamsson email: [email protected] >
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