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14.7.3.19 router ipv6 ospf
Command: [no] router ipv6 ospf [<tag>]
Function:
This command initializes the ospfv3 routing prcess and enters ospfv3 mode
for configuring the ospfv3 routing process. The “
[no] router ipv6 ospf [<tag>]
” command
stops relevant process
Parameter: <tag>
ospfv3 is the process mark which could be random strings made up of
characters and digits
Command Mode:
Global mode
Usage Guide:
To let he ospfv3 routing process work properly, this command must be
configured and ospfv3 must at least be enabled on one interface. When the tag
configured by the ipv6 router ospf area command under interface mode matches with the
tag of ospf process, the ospfv3 process is enabled on this interface.
Example:
Switch#config terminal
Switch
(config)#router ipv6 ospf IPI
14.7.3.20 timers spf
Command: timers spf <spf-delay> <spf-holdtime>
no timers spf
Function:
Adjust route calculation timer value. The “
no timers spf
” restores the relevant
value to default
Parameter: <spf-delay>
5 seconds by default
<spf-holdtime>
10 seconds by default
Command Mode: OSPFv3 protocol mode
Usage Guide:
In this command the delay time between receiving topology change and
SPF calculation, and further configured the hold time between two discontinuous SPF
calculations.
Example:
Switch#config terminal
Switch(config)#router ipv6 ospf
Switch(config-router)#timers spf 5 10
14.7.4 OSPFv3 Examples
Examples 1:OSPF autonomous system.
This scenario takes an OSPF autonomous system consists of five ES4700 series
layer3 switches for example, where layer3 switch SwitchA and SwitchE make up OSPF
area 0, layer3 switch SwitchB and SwitchC form OSPF area 1 (assume vlan1 interface
of layer3 switch SwitchA belongs to area 0), layer3 switch SwitchD forms OSPF area2
