On 29/04/2013 16:13, Mark Smith wrote: ... > I don't think it is specifically defined. For example, I > understand Linux just uses an incrementing allocation > counter, which is why the order of interface initialisation > or insertion matters. On routers etc., this sort of scheme > also seems to be common, as they also can have a command > which enables persistent indexes, such that they are restored > after a reboot, and typically that defaults to off. I have > recently come across a scheme which doesn't seem to fit > either of these though - the ifindex values are huge numbers,
As far as anything is defined, they are allowed to be unsigned 32-bit integers (according to [RFC4001] and [RFC3493]). The human-readable Zone Identifier has no length limit afaik. Brian -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
