Configure Virtual Links - Dell Force10 C150 Configuration Manual

Figure 32-17. Command Example: show run ospf
FTOS#show run ospf
!
router ospf 1
graceful-restart grace-period 300
graceful-restart role helper-only
graceful-restart mode unplanned-only
graceful-restart helper-reject 10.1.1.1
graceful-restart helper-reject 20.1.1.1
network 10.0.2.0/24 area 0
FTOS#
Use the following command to disable OSPFv2 graceful-restart after you have enabled it.
Command Syntax
no graceful-restart grace-period
For more information on OSPF graceful restart, refer to the FTOS Command Line Interface Reference.

Configure virtual links

Areas within OSPF must be connected to the backbone area (Area ID 0.0.0.0). If an OSPF area does not
have a direct connection to the backbone, at least one virtual link is required. Virtual links must be
configured on an ABR connected to the backbone.
• hello-interval: help packet
• retransmit-interval: LSA retransmit interval
• transmit-delay: LSA transmission delay
• dead-interval: dead router detection time
• authentication-key: authentication key
• message-digest-key: MD5 authentication key
Command Mode Usage
CONFIG-ROUTER- Disable OSPFv2 graceful-restart. Returns OSPF
OSPF-id graceful-restart to its default state.
Open Shortest Path First (OSPFv2 and OSPFv3) | 719