[ndnSIM] Calculate metric for a prefix

[Muhammad Hosain Abdollahi Sabet]

You mean ScenarioHelper::Routeinfo and ScenarioHelper::addRoutes cannot
help?

Regards,
Sabet

خندان باشید
با تشکر

On Tue, May 24, 2016 at 6:23 AM, Spyridon (Spyros) Mastorakis <
mastorakis at cs.ucla.edu> wrote:

> Hi Sabet,
>
> the cost has to do with the overall routing/forwarding administration and
> policies. I do not think that we have a standardized way to calculated the
> cost for the next hop of a FIB entry. If you think about it, the adaptive
> forwarding plane and the forwarding strategy can override the routing
> plane, set/reset the cost for each next hop and change the face ranking on
> each node.
>
> To access the cost, you will have to access the FIB of a node and then use
> the FIB look up API:
>
>
> https://github.com/named-data-ndnSIM/NFD/blob/NFD-0.3.4-ndnSIM/daemon/table/fib.hpp#L57-L69
>
> The highlighted methods will return a shared_ptr to a fib entry. Then you
> can use the fib entry API to get the next-hops for this fib entry:
>
>
> https://github.com/named-data-ndnSIM/NFD/blob/NFD-0.3.4-ndnSIM/daemon/table/fib-entry.hpp#L62-L63
>
> Finally, you will use the next-hop API to get the cost of each next hop:
>
>
> https://github.com/named-data-ndnSIM/NFD/blob/NFD-0.3.4-ndnSIM/daemon/table/fib-nexthop.hpp#L50-L51
>
>
> Hope that this helps,
>
> Spyridon (Spyros) Mastorakis
> Personal Website: http://cs.ucla.edu/~mastorakis/
> Internet Research Laboratory
> Computer Science Department
> UCLA
>
> On May 22, 2016, at 6:17 AM, Muhammad Hosain Abdollahi Sabet <
> mhasabet at gmail.com> wrote:
>
> Hi everyone,
>
> In my custom application, based on the received interest I want to create
> a FIB entry for a prefix - which is retrieved by processing the interest's
> name. For using FIBHelper::AddRoute in need to have the metric for prefix.
> How can I calculate it? Is there any method some where which you(in a
> node) can give it prefix and it gives you back the metric for that prefix?
>
> Thanks,
> Sabet
>
>
>
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