Configuring Ipv6 Nd; Configuring A Static Neighbor Entry; Configuring The Maximum Number Of Neighbors Dynamically Learned - HP 5920 Series Configuration Manual

Configuring IPv6 ND

This section describes how to configure IPv6 ND.

Configuring a static neighbor entry

The IPv6 address of a neighboring node can be resolved into a link-layer address dynamically through
NS and NA messages or through a manually configured static neighbor entry.
The device uniquely identifies a static neighbor entry by the IPv6 address and the local Layer 3 interface
number of the neighbor. You can configure a static neighbor entry by using one of the following
methods:
Method 1—Associate a neighbor's IPv6 address and link-layer address with the local Layer 3
•
interface.
If you use Method 1, the device automatically finds the Layer 2 port connected to the neighbor.
Method 2—Associate a neighbor's IPv6 address and link-layer address with a local port in a
•
VLAN.
If you use Method 2, make sure the corresponding VLAN interface exists and the Layer 2 port
specified by port-type port-number belongs to the VLAN specified by vlan-id. The device associates
the VLAN interface with the neighbor IPv6 address to identify the static neighbor entry.
To configure a static neighbor entry:
Step
1. Enter system view.
2. Configure a static
neighbor entry.
Configuring the maximum number of neighbors dynamically
learned
The device can dynamically acquire the link-layer address of a neighboring node through NS and NA
messages and add it into the neighbor table. A large neighbor table can reduce the forwarding
performance of the device. You can restrict the size of the neighbor table by setting the maximum number
of neighbors that an interface can dynamically learn. When the number of dynamically learned
neighbors reaches the threshold, the interface stops learning neighbor information.
To configure the maximum number of neighbors dynamically learned:
Step
1. Enter system view.
2. Enter interface view.
3. Configure the maximum
number of neighbors that the
interface can learn.
Command
system-view
ipv6 neighbor ipv6-address mac-address { vlan-id
port-type port-number | interface interface-type
interface-number } [ vpn-instance
vpn-instance-name ]
Command
system-view
interface interface-type
interface-number
ipv6 neighbors
max-learning-num number
122
Remarks
N/A
By default, no static neighbor
entry exists on the device.
Remarks
N/A
N/A
By default, an interface can
dynamically learn a maximum of
8192 neighbors.