ZyXEL Communications XS3800-28 Cli Reference Manual page 170

Table 121 show ipv6 neighbor (continued)
LABEL
S
T
Interface
Expire
This example sends ping requests to an Ethernet device with IPv6 address fe80::2d0:59ff:feb8:103c in
VLAN 1. The device also responds the pings.
sysname# ping6 ffe80::2d0:59ff:feb8:103c -i vlan 1
PING6(56=40+8+8 bytes) fe80::219:cbff:fe00:1 --> fe80::2d0:59ff:feb8:103c
16 bytes from fe80::2d0:59ff:feb8:103c, icmp_seq=0 hlim=64 time=1.0
16 bytes from fe80::2d0:59ff:feb8:103c, icmp_seq=1 hlim=64 time=1.0
16 bytes from fe80::2d0:59ff:feb8:103c, icmp_seq=2 hlim=64 time=1.0
--- fe80::2d0:59ff:feb8:103c ping6 statistics ---
3 packets transmitted, 3 packets received, 0.0 % packet loss
round-trip min/avg/max = 1.0 /1.0 /1.0
sysname#
Chapter 42 IPv6 Commands
DESCRIPTION
This field displays whether the neighbor IPv6 interface is reachable. In IPv6,
"reachable" means an IPv6 packet can be correctly forwarded to a neighbor node
(host or router) and the neighbor can successfully receive and handle the packet. The
available options in this field are:
• reachable(R): The interface of the neighboring device is reachable. (The Switch
has received a response to the initial request.)
• stale(S): The last reachable time has expired and the Switch is waiting for a
response to another initial request. The field displays this also when the Switch
receives an unrequested response from the neighbor's interface.
• delay(D): The neighboring interface is no longer known to be reachable, and
traffic has been sent to the neighbor recently. The Switch delays sending request
packets for a short to give upper-layer protocols a chance to determine
reachability.
• probe(P): The Switch is sending request packets and waiting for the neighbor's
response.
• invalid(IV): The neighbor address is with an invalid IPv6 address.
• unknown(?): The status of the neighboring interface can not be determined for
some reason.
• incomplete(I): Address resolution is in progress and the link-layer address of the
neighbor has not yet been determined (see RFC 2461). The interface of the
neighboring device did not give a complete response.
This field displays the type of an address mapping to a neighbor interface. The
available options in this field are:
• other(O): none of the following type.
• dynamic(D): The IP address to MAC address can be successfully resolved using
IPv6 Neighbor Discovery protocol (See
similar as IPv4 ARP (Address Resolution protocol).
• static(S): The interface address is statically configured.
• local(L): A Switch interface is using the address.
This field displays the IPv6 interface.
This displays how long (hhhmmmsss) an address can be used before it expires. If an
address is manually configured, it displays permanent (never expires).
Ethernet Switch CLI Reference Guide
170
Neighbor Discovery Protocol
ms
(NDP)). Is it
ms
ms
ms