Configuring Ospf Across The Wan - Lucent Technologies MAX 6000 Network Configuration Manual

Configuring OSPF Routing
Configuring OSPF routing in the MAX
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When you close the Ethernet profile, the MAX comes up as an OSPF router on that interface. It
forms adjacencies and begins building its routing table.

Configuring OSPF across the WAN

The WAN interface of the MAX is a point-to-point network. A point-to-point network is any
network that joins a single pair of routers. Such networks typically do not provide a
broadcasting or multicasting service, so all advertisements are sent point to point.
An OSPF WAN link has a default cost of ten. You can assign a higher cost to reflect a slower
connection or a lower cost to set up a preferred route to a certain destination. If the cost of one
route is lower than that of another to the same destination, the MAX does not select the
higher-cost route unless route preferences change the equation.
OSPF on the WAN link is configured in a Connection profile, using the same parameters
described in "Configuring OSPF on the Ethernet interface" on page 8-9. In the Connection
profile, however, the parameter values permitted vary somewhat from those permitted in the
Ether Options profile. For more information about any parameter, see the MAX Reference.
In this example, the MAX is connecting to another MAX unit across a T1 link (as in Figure 8-6
on page 8-9). To configure this interface:
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If authentication is not required, set AuthType to None.
Set the Cost parameter to specify the cost for the MAX to route into the backbone area.
For example:
Cost=1
Specify a value greater than zero and less than 16777215. By default the cost of an
Ethernet-connected route is 1.
Set the Transit Delay parameter to specify the expected transit delay for Link State Update
packets. For example:
TransitDelay=1
Set the RetransmitInterval parameter to specify the retransmit interval for OSPF packets.
For example:
RetransmitInterval=5
This parameter specifies the number of seconds between retransmissions of Link-State
Advertisements, Database Descriptions, and Link State Request Packets.
Exit the profile and, at the exit prompt, select the exit and accept option.
Open the Connection profile for the remote MAX unit, enable the Route IP parameter, and
configure the IP routing connection. For example:
Ethernet
Connections
90-101 Cprofile1
IP options...
LAN Adrs=10.2.3.4/24
WAN Alias=0.0.0.0
IF Adrs=0.0.0.0
Metric=7
Preference=N/A
Private=No
MAX 6000/3000 Network Configuration Guide