version – Use of OSI IS-IS for Routing in TCP/IP and Dual Environments OSPF and IS-IS: A Comparative Anatomy by Dave Katz, Juniper Collection of RFCs pertaining to IS-IS IS-IS and OSPF difference discussion (Vishwas Manral, Manav Bhatia and Yasuhiro Ohara) Google Quagga IS-IS implementation Sample isisd.conf file: used with Quagga Routing protocols ISO standards Internet Standards Internet protocols OSI protocols