Quick Reference Guide

PowerConnect B-Series TI24X Configuration Guide 79
53-1002269-02
Configuring static neighbor entries
5
After node 1 receives the neighbor advertisement message from node 2, nodes 1 and 2 can now
exchange packets on the link.
After the link-layer address of node 2 is determined, node 1 can send neighbor solicitation
messages to node 2 to verify that it is reachable. Also, nodes 1, 2, or any other node on the same
link can send a neighbor advertisement message to the all-nodes multicast address (FF02::1) if
there is a change in their link-layer address.
Configuring static neighbor entries
In some special cases, a neighbor cannot be reached using the neighbor discovery feature. In this
situation, you can add a static entry to the IPv6 neighbor discovery cache, which causes a neighbor
to be reachable at all times without using neighbor discovery. (A static entry in the IPv6 neighbor
discovery cache functions like a static ARP entry in IPv4.)
NOTE
A port that has a statically assigned IPv6 entry cannot be added to a VLAN.
NOTE
Static neighbor configurations will be cleared on secondary ports when a trunk is formed.
For example, to add a static entry for a neighbor with the IPv6 address 3001:ffe0:2678:47b and
link-layer address 0004.6a2b.8641 that is reachable through Ethernet interface 1, enter the
following command.
PowerConnect(config)# ipv6 neighbor 3001:ffe0:2678:47b ethernet 1 0004.6a2b.8641
Syntax: [no] ipv6 neighbor ipv6-address ethernet port | ve ve-number [ ethernet port ]
link-layer-address
The ipv6-address parameter specifies the address of the neighbor.
The ethernet | ve parameters specify the interface through which to reach a neighbor. If you specify
an Ethernet interface, specify the port number of the Ethernet interface. If you specify a VE, specify
the VE number and then the Ethernet port numbers associated with the VE. The link-layer address
is a 48-bit hardware address of the neighbor.
If you attempt to add an entry that already exists in the neighbor discovery cache, the software
changes the already existing entry to a static entry.
To remove a static IPv6 entry from the IPv6 neighbor discovery cache, use the no form of this
command.
Clearing global IPv6 information
You can clear the following global IPv6 information:
• Entries from the IPv6 cache.
• Entries from the IPv6 neighbor table.
• IPv6 routes from the IPv6 route table.
• IPv6 traffic statistics.