When switch sends version higher than Ryu supports, Ryu fails to negotiate.
In this case
4 = OF1.3 from switch
3 = OF1.2 from Ryu
datapath.supported_ofp_version = (3 = OF1.2,)
In such cases, we should use OF1.2 instead of error.
> Connection to controller closed because of {"localhost",6633,0, {unsupported_version,4}}
Reported-by: Shivaram Mysore <shivaram.mysore@gmail.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
hacky workaround, will be removed. OF1.3 doesn't have ports. An
application should not depend on them. But there might be such bad
applications so let's keep this workaround for while.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
No reason that we use register_cls() for ofp handlers. We can do with
register_instance() with the others do.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
