[quagga-dev 11822] Re: zebra dest/src routing support

Juliusz Chroboczek jch at pps.univ-paris-diderot.fr
Wed Nov 26 21:55:42 GMT 2014


>> Boutier's babeld supports both of these.  We'd be interested to know why
>> the latter didn't work out for zOSPF.

> The zOSPF draft did dst-src in OSPF, but src-dst in the kernel, so it
> had to dynamically allocate Linux "rule"/"table" entries, which made the
> code seriously messy and incompatible with any admin-defined rule/table
> setups.

Yes, that's what Boutier's code does.

> It can probably be done in a reasonable way, but it's significant
> overhead - not sure how much code it is in babeld to get this support?

Roughly 300 lines:

  https://github.com/boutier/babeld/blob/source-specific/kernel_netlink.c#L1700

-- Juliusz




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