Hi Chris, Am 04.02.2011 16:27, schrieb Christopher Morrow: > which options? how often would you expect this list to update? routers > live in the network for ~7 years or so, in large networks. ASIC > updates mean very expensive (equipment, personnel, sla) changes are > required.
Which options depends on the supported or configured options. I didn't mean to hard code the list into the ASIC, but the list should be configurable, so no need to update the ASIC once the basic mechanisms for HBH options are available. For example if only some router alert option values are of interest, those should be configured in the aforementioned list, everything else would be bypassed in the fast path. >> - known options to be processed in the control plane, >> i.e., punt packet to control path (slow path CPU), >> e.g., some to intercept packets with a specific >> router alert option >> - bypassing unknown options (depending on the specified >> actions) in the fast-path > > and hopefully with a consistent decision on which goes where here? I'd > hate for (for example) Cisco to turn left while Juniper turns right... > this also seems complex. Again, just providing a knob (and accepting I guess that's the problem of earlier specs that provide too little guidance for implementers, IMHO that's at least the case for the Router Alert Option. > that it will happen) that the HBH options may just be ignored in the > public network may terminate this discussion completely. Yes, maybe. Regards, Roland -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
