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OSPF, OPEN SHORTEST PATH FIRST
* OSPF, Open Shortest Path First [1]
* Salient features [2]
* Some links: [3]
* Local help pages: [4]
* Books: [5]
This is a link state protocol. There are various versions
* OSPF (Version 2), RFC 2328 [6] (indexed html [7])
* OSPF for IPv6 (Version 3), RFC 2740 [8] (indexed html [9])
SALIENT FEATURES
* OSPF can discover neighbors through multicast "hello" packets. This
feature can be crucial in allowing new nodes to be added to the mesh
without requiring configuration changes to pre-existing nodes.
* OSPF supports a mode called 'point-to-multipoint [10]' where
routers [11] on a network (to use the RFC term for a subnet [12]) do
not all necessarily have to be able to communicate directly with
one-another (See sections 2.1.1 and 12.4.1.4 of the RFC). This is
important to support 802.11 [13] running in IBSS [14] mode as
described in Layer2Assumptions
* Link state information is restricted to an area, area 0 being
special, namely the BackBone [15]. Communications between areas must
transit the backbone. The backbone must be contiguous or 'patched up'
with virtual links.
SOME LINKS:
* - Free routing software that supports OSPF [16] (RFC 2328)
* - OSPF design guide on Cisco\'s site [17]
* - Andrew Griffiths site [18]
LOCAL HELP PAGES:
* Router [19]
* Routing [20]
* OSPF for windowsXP [21]
* Zebra and Quagga [22]
BOOKS:
* Cisco Router OSPF : design and implementation guide, William
Parkhurst 1998, McGraw-Hill. ISBN:0-07-048626-3
Links:
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[1] http://melbournewireless.org.au/#ospf__open_shortest_path_first
[2] http://melbournewireless.org.au/#salient_features
[3] http://melbournewireless.org.au/#some_links_
[4] http://melbournewireless.org.au/#local_help_pages_
[5] http://melbournewireless.org.au/#books_
[6] http://www.ietf.org/rfc/rfc2328.txt
[7] http://www.zvon.org/tmRFC/RFC2328/Output/
[8] http://www.ietf.org/rfc/rfc2740.txt
[9] http://www.zvon.org/tmRFC/RFC2740/Output/
[10] http://melbournewireless.org.au/?p2mp
[11] http://melbournewireless.org.au/?Router
[12] http://melbournewireless.org.au/?Subnet
[13] http://melbournewireless.org.au/?802.11
[14] http://melbournewireless.org.au/?IBSS
[15] http://melbournewireless.org.au/?BackBone
[16] http://www.zebra.org
[17] http://www.cisco.com/warp/public/104/1.html
[18] http://felinemenace.org/~andrewg/
[19] http://melbournewireless.org.au/?Router
[20] http://melbournewireless.org.au/?Routing
[21] http://melbournewireless.org.au/?OSPFwindows
[22] http://melbournewireless.org.au/?Zebra
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