Zyxel OLT2412 [87/326] Chapter 8 ipv6

Zyxel OLT2412 [87/326] Chapter 8 ipv6
Chapter 8 IPv6
OLT2412 User’s Guide
87
This example shows the OLT owns (L displays in the T field) two manually configured (permanent)
IP addresses, 2001::1234 and fe80::219:cbff:fe00:1. It also displays a neighbor
fe80::2d0:59ff:feb8:103c in VLAN 1 is reachable from the OLT.
The following table describes the labels in this display.
OLT2412# show ipv6 neighbor
Address MAC S T Interface
--------------------------------------- ----------------- -- - ------------
2001::1234 00:19:cb:0:0:0:1 R L vlan 1
fe80::219:cbff:fe00:1 00:19:cb:0:0:0:1 R L vlan 1
fe80::2d0:59ff:feb8:103c 00:d0:59:b8:10:3c R D vlan 1
S: reachable(R),stale(S),delay(D),probe(P),invalid(IV),incomplete(I),unknown(?)
T: local(L),dynamic(D),static(S),other(O)
Table 39 show ipv6 neighbor
LABEL DESCRIPTION
Address This is the IPv6 address of the OLT or a neighboring device.
MAC This is the MAC address of the neighboring device or itself.
S 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 OLT
has received a response to the initial request.)
stale (S): The last reachable time has expired and the OLT is waiting for a
response to another initial request. The field displays this also when the OLT
receives an un-requested 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 OLT delays sending request
packets for a short to give upper-layer protocols a chance to determine
reachability.
probe (P): The OLT 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.
T 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 Neighbor Discovery Protocol
(NDP)). Is it similar as IPv4 ARP (Address Resolution protocol).
static( S): The interface address is statically configured.
local (L): A OLT interface is using the address.
Interface This field displays the VLAN the IPv6 interface is on.
Expire This displays how long (hhhmmmsss) an address can be used before it expires. If an
address is manually configured, it displays permanent (never expires).

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