Configuration Prerequisites; Configuring The Ospfv3 Network Type For An Interface; Configuring An Nbma Or P2Mp Neighbor - HP FlexFabric 12900E Series Configuration Manual

•
Broadcast—When the link layer protocol is Ethernet or FDDI, OSPFv3 considers the network
type as broadcast by default.
•
NBMA—When the link layer protocol is ATM, Frame Relay, or X.25, OSPFv3 considers the
network type as NBMA by default.
•
P2P—When the link layer protocol is PPP, LAPB, HDLC, or POS, OSPFv3 considers the
network type as P2P by default.
Follow these guidelines when you change the network type of an OSPFv3 interface:
•
An NBMA network must be fully connected. Any two routers in the network must be directly
reachable to each other through a virtual circuit. If no such direct link is available, you must
change the network type through a command.
•
If direct connections are not available between some routers in an NBMA network, the type of
interfaces associated must be configured as P2MP, or as P2P for interfaces with only one
neighbor.

Configuration prerequisites

Before you configure OSPFv3 network types, enable OSPFv3.

Configuring the OSPFv3 network type for an interface

Step
1. Enter system view.
2. Enter interface view.
3. Configure a network type
for the OSPFv3 interface.

Configuring an NBMA or P2MP neighbor

For NBMA and P2MP interfaces (only when in unicast mode), you must specify the link-local IP
addresses of their neighbors because these interfaces cannot find neighbors through broadcasting
hello packets. For NBMA interfaces, you can also specify DR priorities for neighbors.
To configure an NBMA or P2MP (unicast) neighbor and its DR priority:
Step
1. Enter system view.
2. Enter interface view.
3. Specify an NBMA or P2MP
(unicast) neighbor and its DR
priority.
Command
system-view
interface interface-type
interface-number
ospfv3 network-type
{ broadcast | nbma | p2mp
[ unicast ] | p2p } [ instance
instance-id ]
Command
system-view
interface
interface-number
ospfv3 peer ipv6-address [ cost
cost-value | dr-priority priority ]
[ instance instance-id ]
404
Remarks
N/A
N/A
By default, the network type of an
interface depends on the media
type of the interface.
Remarks
N/A
interface-type
N/A
By default,
address is specified for the
neighbor interface.
no link-local