Dasan V5808 - Reference Bandwidth

UMN:CLI User Manual
V5808
576
id <0-255>]
no ipv6 ospf network {broadcast | non-
broadcast | point-to-multipoint | point-to-point}
[instance-id <0-255>]
Deletes a selected network type for
OSPFv3.
11.3.4 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
advertises 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
following command.
Command
Mode
Description
auto-cost reference-bandwidth
<1-4294967>
Router
Sets the reference bandwidth for the cost on interface.
1-4294967: reference bandwidth value (default:
100Mbps)
To restore the reference bandwidth to its default value and thus restore the default costs
of interface to their default value, use the following command.
Command
Mode
Description
no auto-cost reference-
bandwidth
Router
Restores the reference bandwidth to its default value.
11.3.5 Non-Broadcast Network
To operate NBMA type network, neighbor router configuration is needed. And IP address,
Priority, Poll-interval configuration as well. Priority is information for designate router
selection and it configured [0] as a default. Poll-interval is the waiting time to re-get the
hello packet from dead Neighbor router. It configured 120 seconds as a default.
To configure a router communicated by non-broadcast type, use the following command.
Command
Mode
Description
ipv6 ospf neighbor X:X::X:X [instance-id <0-
Interface
Configures a neighbor router of NBMA
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