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7-26
MAX Administration Guide
Administering TCP/IP
Managing the Open Shortest Path First (OSPF) protocol
The output includes the following fields:
Note:
An S or an H flag might appear next to the origin. S indicates a static route. H indicates
a hidden or inactive static route. Hidden static routes occur when the router learns of a better
route.
Managing the Open Shortest Path First (OSPF)
protocol
Open Shortest Path First (OSPF) is the next generation Internet routing protocol. The Open in
its name refers to the fact that OSPF was developed in the public domain as an open
specification. The Shortest Path First portion refers to an algorithm developed by Dijkstra in
1978 for building a self-rooted shortest-path tree from which routing tables can be derived. As
a link-state protocol, OSPF an take into account a variety of link conditions, such as the
reliability or speed of the link, when determining the best path to a destination network. OSPF
uses a link-state database of the network and propagates only changes to the database.
Displaying OSPF information
The terminal-server command-line interface provides commands for monitoring OSPF in the
MAX. To display the supported commands, enter the Show OSPF command with a question
mark:
scend% show ospf ?
show ospf ?
Display help information
show ospf size
Display OSPF size
show ospf areas
Display OSPF areas
show ospf stats
Display OSPF statistics
show ospf intf...
Display OSPF summary/detail interface information
show ospf internal
Display OSPF internal routes
show ospf lsa ...
Display OSPF detail link-state advertisements
show ospf lsdb ...
Display OSPF link-state DB summary for an area
show ospf nbrs ...
Display OSPF summary/detail neighbor information
show ospf routers
Display OSPF routers
show ospf ext
Display OSPF external AS advertisements
show ospf rtab
Display OSPF routing table
show ospf database
Display OSPF entire database summary
show ospf translator Display OSPF entire database summary
Field
Descriptions
network
IPX network number.
next
router
Address of the next router, or 0 (zero) for a direct or WAN connection.
hops
Hop count to the network.
ticks
Tick count to the network.
origin
Name of the profile used to reach the network.