Intel 480T, User Manual

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C H A P T E R 1 1 RIP and OSPF
Configuring OSPF
Each switch that is configured to run OSPF must have a unique
router ID. Manually set the router ID of the switches participating
in OSPF, instead of having the switch automatically choose its
router ID based on the highest interface IP address. Not performing
this configuration in larger, dynamic environments could result in
an older link state database remaining in use.
Table 54 describes the commands used to configure OSPF.
Table 54: OSPF Configuration Commands
Command Description
config ospf [area <areaid> | vlan [<name> |
all]] cost [automatic | <number>] Configures the cost metric of one or all
VLAN(s). If an area is specified, the cost
metric is applied to all VLANs currently
within that area. When
automatic
is
specified, the advertised cost is determined
from the OSPF metric table and corresponds
to the active highest bandwidth port in the
VLAN.
config ospf [area <areaid> | vlan [<name> |
all]] priority <number> Configures the priority used in the designated
router-election algorithm for one or all IP
interface(s) (VLANs) for all VLANs
currently within the area. The range is 0
through 255, and the default setting is 1.
Setting the value to 0 ensures that the router is
never selected as the designated router or
backup designated router.
config ospf [vlan <name> | area <areaid> |
virtual-link <routerid> <areaid>]
authentication [simple-password <password>
| md5 <md5_key_id> <md5_key>| none] Specifies the authentication password (up to
eight characters) or Message Digest 5 (MD5)
key for one or all interfaces (VLANs) in an
area. The
md5_key
is a numeric value with
the range 0 to 65,536. When the OSPF area is
specified, authentication information is
applied to all OSPF interfaces within the area.