Bill Fenner Email and Phone Number

I've been fascinated by networking ever since I started using the Internet in 1989. At heart, I'm a generalist, from UNIX system administrator to protocol junkie, no matter the layer -- be it SMTP, HTTP, Atom, BGP, ARP, ...I'm also fascinated by network monitoring. Ever since the first time I ran tcpdump, I knew that the network is *not* doing what you think it's doing. IP is so incredibly robust it will work despite massive problems, which users may not even notice. Being able to proactively find these "invisible" problems is an ongoing quest.I've been active in the Internet Engineering Task Force since 1993. I co-chaired the idmr and magma working groups, and was Routing Area director from 2002-2007. I also work on the tools team and help liaise with IANA and the RFC Editor.I've authored the following RFCs:2236 Internet Group Management Protocol, Version 2.2435 RTP Payload Format for JPEG-compressed Video.2525 Known TCP Implementation Problems.2710 Multicast Listener Discovery (MLD) for IPv6.2934 Protocol Independent Multicast MIB for IPv4.3228 IANA Considerations for IPv4 Internet Group Management Protocol (IGMP).3376 Internet Group Management Protocol, Version 3.3618 Multicast Source Discovery Protocol (MSDP).3678 Socket Interface Extensions for Multicast Source Filters.4113 Management Information Base for the User Datagram Protocol (UDP).4601 Protocol Independent Multicast - Sparse Mode (PIM-SM): Protocol Specification (Revised).4605 Internet Group Management Protocol (IGMP) / Multicast Listener Discovery (MLD)-Based Multicast Forwarding ("IGMP/MLD Proxying").4624 Multicast Source Discovery Protocol (MSDP) MIB.4727 Experimental Values In IPv4, IPv6, ICMPv4, ICMPv6, UDP, and TCP Headers.4794 RFC 1264 Is Obsolete.4940 IANA Considerations for OSPF.I co-authored an update of Richard Stevens' classic, "UNIX Network Programming, Volume 1, 3rd Edition" in 2003.Specialties: Protocol design, Protocol implementation, Network diagnostics