Hi Qin, IMHO we should limit the hop count to the output we expect if we run traceroute to the endpoint thus not indicate any lower layer devices in this.
Hop count by its nature is a rough metric and one must rely on other metrics like routing cost, delay to judge an optimum endpoint. Dhruv On Fri, Jul 18, 2014 at 8:02 AM, Qin Wu <[email protected]> wrote: > Hi, all: > > Hopcount is a cost metric used in the example ALTO base protocol. We > clarified its properties(e.g., cost metric string, metric value type) in the > ALTO TE metrics draft. > > The hop count is usually refers to the intermediate devices (like routers) > through which data must pass between source and destination > > I am wondering if we need to distinguish hop count in IP layer from hop > count in higher layer or lower layer? Is there any hop count in lower > layer,e.g., optical layer? > > > > Regards! > > -Qin _______________________________________________ alto mailing list [email protected] https://www.ietf.org/mailman/listinfo/alto
