[ris-int] quagga & 4-byte ASN support
Arife Vural arife at ripe.net
Mon Mar 13 17:01:12 CET 2006
Hi Rene, Lately, I exchanged some e-mail with Paul Jakma, as you said they try to support 4byte ASn sometime this year ... Will forward his e-mail seperately. Arife On Mon, Mar 13, 2006 at 04:32:37PM +0100, Rene Wilhelm wrote: > Searching for the status of 4-byte ASN support in quagga > I couldn't see a word on this in the official mailing lists > at http://lists.quagga.net/ > > But after a little googling I found Paul Jamka's weblog > http://blogs.sun.com/roller/page/paulj?catname=%2FNetworking > which (in the March 10 entry) says: > > The short answer is that Quagga is part-way towards 4-byte ASN support > > [...] That leaves the following (generally) as still to be implemented: > > 1. The 4-byte-supported BGP capability > 2. Extending the unit tests with equivalent 4-byte forms and verifying > the AS_PATH parser and transformational functions. > 3. Using the appropriate encoding for AS_PATH according to the remote peer > 4. Adding support for the 2<->4 byte transition mechanisms (unit tests > implied) > > 1, 2 and 3 should be quite easy, 2 weeks about, including testing, and > would get bgpd to the stage which the draft RFC calls a "NEW" speaker and > interoperate fully with other "NEW" speakers. It would also be able to > speak to "OLD" peers, provided no 4-byte wide ASNs are involved. Support > for these items I hope to see in Quagga before the end of the year. > > That leaves 4, which isn't as easy, further I am not very optimistic on > its chances of working. I suspect the internet would be in trouble if we > end up relying on the 4-byte transition mechanism to work. I really hope > all deployed speakers of significance end up being upgraded to "NEW" > (ie corresponding to at least 1,2 and 3 above) well before the first > 4-byte ASNs are issued, so that we never have to find out how well > the transition mechanisms might work.. > > > His hopes may prove faint, especially when (according to the proposed policy) > RIRs start allocating/assigning 4-byte ASNs by default come 1/1/2009; > it'll be interesting times. > > However, it is clear the issue has the quagga author(s) attention; > there's no need for RIPE NCC to step in. > > -- Rene > > P.S. Interesting side fact: the last real Quagga died in Artis, > Amsterdam's zoo, some 123 years ago. :) > -- Arife Vural SED, RIPE NCC
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