UMN:CLI
User Manual
V8102
684
no ipv6 ospf priority
[
instance-id
<0-255>]
Interface
[VLAN]
Deletes a configured priority of OSPFv3 router.
12.3.3.4
OSPFv3 Network Type
There are 4 types of OSPFv3 network. Broadcast network, NBMA (Non-broadcast-
multiple-access) network, Point-to-multipoint network and Point-to-point network.
User can configure OSPFv3 network as a Broadcast network or Non-broadcast network
type. For example, if the network does not support multicasting it can be configured Non-
broadcast type from Broadcast type, and NBMA network as a Frame relay can be broad-
cast network type.
NBMA type network need virtual circuit to connect routers. But Point-to-multipoint type
uses virtual circuit on part of network to save the management expenses. It does not to
need to configure Neighbor router to connect routers which are not directly connected. It
also saves IP resources and no need to configure the process for destination router. It
supports those benefits for stable network services.
Generally, the routers and Layer 3 switches are using Broadcast type network.
To select an OSPFv3 network type, use the following command.
Command
Mode
Description
ipv6 ospf network
{
broadcast
|
non-broadcast
|
point-to-multipoint
|
point-to-point
} [
instance-
id
<0-255>]
Interface
[VLAN]
Selects an OSPFv3 network type.
no ipv6 ospf network
{
broadcast
|
non-
broadcast
|
point-to-multipoint
|
point-to-point
}
[
instance-id
<0-255>]
Deletes a selected network type for
OSPFv3.
12.3.4
Reference Bandwidth
You can change the reference bandwidth value for the cost on OSPFv3 interfaces. Each
interface on which OSPFv3 is enabled has a cost associated with it. The device advertis-
es its interfaces and their costs to OSPFv3 neighbors.
By default, the reference bandwidth is 100Mbps. OSPF cost of an interface is based on
the port speed and reference bandwidth value.
- Cost = reference-bandwidth/ port-speed
- 10 Mbps port
’s cost = 100/10 = 10
- 100 Mbps port
’s cost = 100/100 = 1
- 1000 Mbps port
’s cost = 100/1000 = 0.1, which is rounded up to 1
- 2488 Mbps port
’s cost = 100/2488 = 0.04, which is rounded up to 1
To set the reference bandwidth for the cost calculation on OSPFv3 interfaces, use the fol-
lowing command.
Command
Mode
Description
i
