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Ipv6 router ospf area, Ipv6 router ospf area (1528) – LevelOne GTL-2691 User Manual

Page 1528

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C

HAPTER

49

| IP Routing Commands

Open Shortest Path First (OSPFv3)

– 1528 –

D

EFAULT

S

ETTING

area-id: None

router-id: None

hello-interval: 10 seconds

retransmit-interval: 5 seconds

transmit-delay: 1 second

dead-interval: 40 seconds

C

OMMAND

U

SAGE

All areas must be connected to a backbone area (0.0.0.0) to maintain

routing connectivity throughout the autonomous system. If it not

possible to physically connect an area to the backbone, you can use a

virtual link. A virtual link can provide a logical path to the backbone for

an isolated area, or can be configured as a backup connection that can

take over if the normal connection to the backbone fails.

A virtual link can be configured between any two backbone routers that

have an interface to a common non-backbone area. The two routers

joined by a virtual link are treated as if they were connected by an

unnumbered point-to-point network.

Any area disconnected from the backbone must include the transit area

ID and the router ID for a virtual link neighbor that is adjacent to the

backbone.

E

XAMPLE

This example creates a virtual link using the defaults for all optional

parameters.

Console(config-router)#area 3 virtual-link 192.168.0.9

Console(config-router)#

ipv6 router ospf

area

This command binds an OSPF area to the selected interface. Use the no

form to remove an OSPF area, disable an OSPF process, or remove an

instance identifier from an interface.

S

YNTAX

[no] ipv6 router ospf area area-id [tag process-name |

instance-id instance-id]
area-id
- Area to bind to the current Layer 3 interface. An OSPF

area identifies a group of routers that share common routing

information. The area ID can be in the form of an IPv4 address or

as a four octet unsigned integer ranging from 0-4294967295.
process-name - A process name must be entered when configuring

multiple routing instances. (Range: Alphanumeric string up to 16

characters)
instance-id - Identifies a specific OSPFv3 routing process on the

link-local network segment attached to this interface.

(Range: 0-255)