Edge-Core ECS4660-28F, Руководство по управлению, Страница: 1754 / 2020

C
HAPTER
51
| IP Routing Commands
Open Shortest Path First (OSPFv2)
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comparing Type 2 routes, the internal cost is only used as a tie-breaker
if several Type 2 routes have the same cost.
◆
This command should not be used to generate a default route for a stub
or NSSA. To generate a default route for these area types, use the area
stub or area nssa commands.
E
XAMPLE
This example assigns a metric of 20 to the default external route
advertised into an autonomous system, sending it as a Type 2 external
metric.
Console(config-router)#default-information originate metric 20 metric-type 2
Console(config-router)#
R
ELATED
C
OMMANDS
ip route (1724)
redistribute (1799)
router-id
This command assigns a unique router ID for this device within the
autonomous system for the current OSPF process. Use the no form to use
the default router identification method (i.e., the highest interface
address).
S
YNTAX
router-id ip-address
no router-id
ip-address - Router ID formatted as an IPv4 address.
C
OMMAND
M
ODE
Router Configuration
D
EFAULT
S
ETTING
Highest interface address
C
OMMAND
U
SAGE
◆
This command sets the router ID for the OSPF process specified in the
router ospf command.
◆
The router ID must be unique for every router in the autonomous
system. Using the default setting based on the highest interface
address ensures that each router ID is unique. (Note that the router ID
cannot be set to 255.255.255.255.)
◆
If this router already has registered neighbors, the new router ID will
be used when the router is rebooted, or manually restarted by entering
the no router ospf followed by the router ospf command.