HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Services Configuration G - Page 135

Configuring IPv6 ND, Configuring a static neighbor entry

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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. Command Remarks system-view N/A ipv6 neighbor ipv6-address mac-address { vlan-id port-type port-number | interface interface-type interface-number } [ vpn-instance vpn-instance-name ] By default, no static neighbor entry exists on the device. Setting the maximum number of dynamic neighbor entries 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. When the number of dynamic neighbor entries reaches the threshold, the interface stops learning neighbor information. To prevent an interface from occupying too many neighbor table resources, you can set the maximum number of dynamic neighbors that an interface can learn. To set the maximum number of dynamic neighbor entries: Step Command 1. Enter system view. system-view 2. Enter interface view. interface interface-type interface-number 3. Set the maximum number of dynamic neighbor entries that ipv6 neighbors the interface can learn. max-learning-num number Remarks N/A N/A By default, an interface can learn a maximum of 8192 dynamic neighbor entries. 127

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127
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
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure a static
neighbor entry.
ipv6 neighbor
ipv6-address mac-address
{
vlan-id
port-type
port-number
|
interface
interface-type
interface-number
} [
vpn-instance
vpn-instance-name
]
By default, no static neighbor
entry exists on the device.
Setting the maximum number of dynamic neighbor entries
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. When the number of dynamic neighbor entries reaches the
threshold, the interface stops learning neighbor information. To prevent an interface from occupying too
many neighbor table resources, you can set the maximum number of dynamic neighbors that an
interface can learn.
To set the maximum number of dynamic neighbor entries:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface
interface-type
interface-number
N/A
3.
Set the maximum number of
dynamic neighbor entries that
the interface can learn.
ipv6 neighbors
max-learning-num
number
By default, an interface can learn a
maximum of 8192 dynamic
neighbor entries.