Modifying Virtual Link Parameters - Dell PowerConnect B-RX Configuration Manual

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Configuring OSPFv3
Syntax: area <number> | <ipv4-address> virtual-link <router-id>
The area <number> | <ipv4-address> parameter specifies the transit area.
The <router-id> parameter specifies the router ID of the OSPF router at the remote end of the
virtual link. To display the router ID on a router, enter the show ip command.
Assigning a virtual link source address
When routers at both ends of a virtual link need to communicate with one another, the source
address included in the packets must be a global IPv6 address. Therefore, you must determine the
global IPv6 address to be used by the routers for communication across the virtual link. You can
specify that a router uses the IPv6 global address assigned to one of its interfaces.
For example, to specify the global IPv6 address assigned to Ethernet interface 3/1 on ABR1 as the
source address for the virtual link on ABR1, enter the following command on ABR1.
BigIron RX(config-ospf6-router)# virtual-link-if-address interface ethernet 3/1
To specify the global IPv6 address assigned to tunnel interface 1 on ABR2 as the source address
for the virtual link on ABR2, enter the following command on ABR2.
BigIron RX(config-ospf6-router)# virtual-link-if-address interface tunnel 1
Syntax: virtual-link-if-address interface ethernet <port> | loopback <number> | tunnel <number>
The ethernet | loopback | tunnel | ve parameter specifies the interface from which the router
derives the source IPv6 address for communication across the virtual link. If you specify an
Ethernet interface, also specify the port number associated with the interface. If you specify a
loopback, tunnel, or VE interface, also specify the number associated with the respective interface.
To delete the source address for the virtual link, use the no form of this command.

Modifying virtual link parameters

You can modify the following virtual link parameters:
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NOTE
The values of the dead-interval and hello-interval parameters must be the same at both ends of a
virtual link. Therefore, if you modify the values of these parameters at one end of a virtual link, you
must remember to make the same modifications on the other end of the link.
The values of the other virtual link parameters do not require synchronization.
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| ve <number>
Dead-interval - The number of seconds that a neighbor router waits for a hello packet from the
current router before declaring the router is down. The range is 1 – 65535 seconds. The
default is 40 seconds.
Hello-interval - The length of time between the transmission of hello packets. The range is 1 –
65535 seconds. The default is 10 seconds.
Retransmit-interval - The interval between the re-transmission of link state advertisements to
router adjacencies for this interface. The range is 0 – 3600 seconds. The default is 5 seconds.
Transmit-delay - The period of time it takes to transmit Link State Update packets on the
interface. The range is 0 – 3600 seconds. The default is 1 second.
BigIron RX Series Configuration Guide
53-1001810-01