C
HAPTER
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| IP Routing Commands
Open Shortest Path First (OSPFv2)
– 1063 –
ip ospf cost This command explicitly sets the cost of sending a protocol packet on an
interface, where higher values indicate slower ports. Use the no form to
restore the default value.
SYNTAX
ip ospf [ip-address] cost cost
no ip ospf [ip-address] cost
ip-address - This parameter can be used to indicate a specific IP
address connected to the current interface. If not specified, the
command applies to all networks connected to the current interface.
cost - Link metric for this interface. Use higher values to indicate
slower ports. (Range: 1-65535)
COMMAND MODE
Interface Configuration (VLAN)
DEFAULT SETTING
1
COMMAND USAGE
â—† The interface cost indicates the overhead required to send packets
across a certain interface. This is advertised as the link cost in router
link state advertisements.
â—† Routes are assigned a metric equal to the sum of all metrics for each
interface link in the route.
â—† This router uses a default cost of 1 for all port types. Therefore, if any
VLAN contains 10 Gbps ports, you may want to reset the cost for other
VLANs which do not contain 10 Gbps ports to a value greater than 1.
EXAMPLE
Console(config)#interface vlan 1
Console(config-if)#ip ospf cost 10
Console(config-if)#
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