OSPFv3
******

ospf6d is a daemon support OSPF version 3 for IPv6 network. OSPF for IPv6 is described in RFC2740.

OSPF6 router
============

 -- Command: router ospf6

 -- OSPF6 Command: router-id A.B.C.D
     Set router's Router-ID.

 -- OSPF6 Command: interface IFNAME area AREA
     Bind interface to specified area, and start sending OSPF packets.  AREA can be specified as 0.

 -- OSPF6 Command: timers throttle spf DELAY INITIAL-HOLDTIME MAX-HOLDTIME
 -- OSPF6 Command: no timers throttle spf
     This command sets the initial DELAY, the INITIAL-HOLDTIME and the MAXIMUM-HOLDTIME between when SPF is calculated and the event which triggered the calculation. The times are specified in milliseconds and must be in the range of 0 to 600000 milliseconds.

     The DELAY specifies the minimum amount of time to delay SPF calculation (hence it affects how long SPF calculation is delayed after an event which occurs outside of the holdtime of any previous SPF calculation, and also serves as a minimum holdtime).

     Consecutive SPF calculations will always be seperated by at least 'hold-time' milliseconds. The hold-time is adaptive and initially is set to the INITIAL-HOLDTIME configured with the above command. Events which occur within the holdtime of the previous SPF calculation will cause the holdtime to be increased by INITIAL-HOLDTIME, bounded by the MAXIMUM-HOLDTIME configured with this command. If the adaptive hold-time elapses without any SPF-triggering event occuring then the current holdtime is reset to the INITIAL-HOLDTIME.

          router ospf6
           timers throttle spf 200 400 10000

     In this example, the DELAY is set to 200ms, the INITIAL HOLDTIME is set to 400ms and the MAXIMUM HOLDTIME to 10s. Hence there will always be at least 200ms between an event which requires SPF calculation and the actual SPF calculation. Further consecutive SPF calculations will always be seperated by between 400ms to 10s, the hold-time increasing by 400ms each time an SPF-triggering event occurs within the hold-time of the previous SPF calculation.

 -- OSPF6 Command: auto-cost reference-bandwidth COST
 -- OSPF6 Command: no auto-cost reference-bandwidth
     This sets the reference bandwidth for cost calculations, where this bandwidth is considered equivalent to an OSPF cost of 1, specified in Mbits/s. The default is 100Mbit/s (i.e. a link of bandwidth 100Mbit/s or higher will have a cost of 1. Cost of lower bandwidth links will be scaled with reference to this cost).

     This configuration setting MUST be consistent across all routers within the OSPF domain.

OSPF6 area
==========

Area support for OSPFv3 is not yet implemented.

OSPF6 interface
===============

 -- Interface Command: ipv6 ospf6 cost COST
     Sets interface's output cost.  Default value depends on the interface bandwidth and on the auto-cost reference bandwidth.

 -- Interface Command: ipv6 ospf6 hello-interval HELLOINTERVAL
     Sets interface's Hello Interval.  Default 40

 -- Interface Command: ipv6 ospf6 dead-interval DEADINTERVAL
     Sets interface's Router Dead Interval.  Default value is 40.

 -- Interface Command: ipv6 ospf6 retransmit-interval RETRANSMITINTERVAL
     Sets interface's Rxmt Interval.  Default value is 5.

 -- Interface Command: ipv6 ospf6 priority PRIORITY
     Sets interface's Router Priority.  Default value is 1.

 -- Interface Command: ipv6 ospf6 transmit-delay TRANSMITDELAY
     Sets interface's Inf-Trans-Delay.  Default value is 1.

 -- Interface Command: ipv6 ospf6 network (broadcast|point-to-point)
     Set explicitly network type for specifed interface.

Redistribute routes to OSPF6
============================

 -- OSPF6 Command: redistribute static
 -- OSPF6 Command: redistribute connected
 -- OSPF6 Command: redistribute ripng

Showing OSPF6 information
=========================

 -- Command: show ipv6 ospf6 [INSTANCE_ID]
     INSTANCE_ID is an optional OSPF instance ID. To see router ID and OSPF instance ID, simply type "show ipv6 ospf6 <cr>".

 -- Command: show ipv6 ospf6 database
     This command shows LSA database summary.  You can specify the type of LSA.

 -- Command: show ipv6 ospf6 interface
     To see OSPF interface configuration like costs.

 -- Command: show ipv6 ospf6 neighbor
     Shows state and chosen (Backup) DR of neighbor.

 -- Command: show ipv6 ospf6 request-list A.B.C.D
     Shows requestlist of neighbor.

 -- Command: show ipv6 route ospf6
     This command shows internal routing table.

OSPF6 Configuration Examples
============================

Example of ospf6d configured on one interface and area:

     interface eth0
      ipv6 ospf6 instance-id 0
     !
     router ospf6
      router-id 212.17.55.53
      area 0.0.0.0 range 2001:770:105:2::/64
      interface eth0 area 0.0.0.0
     !