Can you share details? Did you contact akamai? Feel free to ping me offline.
- Jared > On Nov 13, 2017, at 9:36 PM, Greg Gombas -X (grgombas) <grgom...@cisco.com> > wrote: > > Hello BGP and/or Akamai experts, > > Has anyone come across issues with using the new 4-octet BGP AS number format > and reaching websites hosted by Akamai? > > One of my customers currently uses the AS number of one of their partner > companies, which is in the standard 2-octed AS format. They were recently > assigned their own AS which is in the 4-octet AS format. > > When they advertise their networks using the 2-octet AS number everything > works fine, they can browse to all websites and all their outbound and > inbound internet traffic works perfectly. > > However when they stop advertising their networks using the 2-octet AS and > advertise their networks using the new 4-octet AS number, they lose > reachability to a number of websites, all of which seem to be hosted by > Akamai, including www.cisco.com<http://www.cisco.com>, > www.dell.com<http://www.dell.com>, and a number of others. Websites that are > not hosted by Akamai work just fine. > > We checked their route advertisements from several looking glass servers and > the routes seem to be propagating properly, albeit there may be a number of > older routers still out there that don't understand the new 4 octet BGP AS > format. > For example, their AS shows up as AS_TRANS 23456 on some looking glass > routers. > > My understanding is the 4-octet ASN's have been out for quite some time now, > so any interoperability issues should have been resolved by now. But could > there be some old BGP speakers who don't understand the new format or the > translated AS 23456 format and drop the routes? > > Has anyone experienced similar issues when using the new format 4 byte BGP > ASN's? > > Any thoughts on who at Akamai we can speak to in order to troubleshoot this > further? > > Thanks, > Greg > > > [http://www.cisco.com/web/europe/images/email/signature/logo05.jpg] > > Gregory Gombas > CCIE# 19649 - R&S > Network Consulting Engineer > Advanced Services > grgom...@cisco.com<mailto:grgom...@cisco.com> > Office: +1-212-714-4497 > Mobile: +1-201-675-9457 > > Cisco Systems Limited > One Penn Plaza > 6th & 9th Floors > New York, NY 10119 > United States > Cisco.com > > > > > > [Think before you print.]Think before you print. > > This email may contain confidential and privileged material for the sole use > of the intended recipient. Any review, use, distribution or disclosure by > others is strictly prohibited. If you are not the intended recipient (or > authorized to receive for the recipient), please contact the sender by reply > email and delete all copies of this message. > For corporate legal information go to: > http://www.cisco.com/web/about/doing_business/legal/cri/index.html > >
