Setup guide

This facility profides tools for additional in-depth configuration of OSPF interface specific
parameters. You do not have to configure interfaces in order to run OSPF.
Property Description
interface (name; default: all) - interfaceon which OSPF will run
• all - is used for the interfaces not having any specific settings
cost (integer: 1..65535; default: 1) - interface cost expressed as link state metric
priority (integer: 0..255; default: 1) - router's priority. It helps to determine the designated router
for the network. When two routers attached to a network both attempt to become the designated
router, the one with the higher router's priority takes precedence
authentication-key (text; default: "") - authentication key to be used by neighboring routers that
are using OSPF's simple password authentication
retransmit-interval (time; default: 5s) - time between retransmitting lost link state advertisements.
When a router sends a link state advertisement (LSA) to its neighbor, it keeps the LSA until it
receives back the acknowledgment. If it receives no acknowledgment in time, it will retransmit the
LSA
transmit-delay (time; default: 1s) - link state transmit delay is the estimated time it takes to
transmit a link state update packet on the interface
hello-interval (time; default: 10s) - the interval between hello packets that the router sends on the
interface. The smaller the hello-interval, the faster topological changes will be detected, but more
routing traffic will ensue. This value must be the same for all routers on a specific network
dead-interval (time; default: 40s) - specifies the interval after which a neighbor is declared as dead.
The interval is advertised in the router's hello packets. This value must be the same for all routers
and access servers on a specific network
Example
To add an entry that specifies that ether2 interface should send Hello packets every 5 seconds, do
the following:
[admin@Wandy] routing ospf> interface add interface=ether2 hello-interval=5s
[admin@Wandy] routing ospf> interface print
0 interface=ether2 cost=1 priority=1 authentication-key=""
retransmit-interval=5s transmit-delay=1s hello-interval=5s
dead-interval=40s
[admin@Wandy] routing ospf>
Virtual Links
routing ospf virtual-link
Description
As stated in OSPF RFC, the backbone area must be contiguous. However, it is possible to define
areas in such a way that the backbone is no longer contiguous. In this case the system administrator
must restore backbone connectivity by configuring virtual links. Virtual links can be configured
between any two backbone routers that have an interface to a common non-backbone area. Virtual
links belong to the backbone. The protocol treats two routers joined by a virtual link as if they were
connected by an unnumbered point-to-point network.