13-26 CHAPTER 13: ADMINISTERING OSPF ROUTING
Administering
Virtual Links
Virtual links establish connections from your local area to other
autonomous systems in the network. You can define, remove, modify,
and display the virtual links on your system.
Displaying
Virtual Links
The virtual links display shows the virtual links associated with the
interface you specify.
To display virtual links, from the top level of the Administration Console,
enter:
ip ospf virtualLinks display
This example shows virtual links:
Table 13-10 shows the attributes for the virtual links display.
Defining Virtual Links Use this command to create a new virtual link to a destination router. You
must configure a virtual link for each area border router that has an
interface outside the backbone area.
You can define up to 32 virtual links per router.
Top-Level Menu
system
ethernet
fddi
atm
bridge
➧ip
ipx
appletalk
snmp
analyzer
script
logout
interface
route
arp
multicast
udphelper
routing
icmpRouterDiscovery
➧ospf
rip
ping
statistics
areas
defaultRouteMetric
interface
linkStateData
neighbors
routerID
partition
stubDefaultMetric
➧virtualLinks
statistics
➧display
define
modify
remove
Virtual links
Indx Interface Router ID Rxmit Router Link Link
Address Intvl Address State Cost
1 193.202.111.1 0.0.0.8 50 193.202.111.194 PTP 2
Table 13-10 Field Attributes for Virtual Links Display
Field Description
Indx Index of the local interface that the virtual link is connected to
Interface Address Local interface address
Router ID Router ID of the remote router’s OSPF
Rxmit Intvl LSA retransmit interval for the virtual link
Router Address Interface address of remote router (changes dynamically)
Link State Virtual link state
Link Cost Cost of virtual link (computed dynamically)
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