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Chapter 11 IPv6 Neighbor Table
XGS2220 Series User’s Guide
129
Status 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 cannot 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. The interface of the neighboring device did not give a complete
response.
Type 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.
• local (L): A Switch interface is using the address.
• dynamic (D): The IP address to MAC address can be successfully resolved using IPv6 Neighbor
Discovery protocol. Is it similar as IPv4 ARP (Address Resolution protocol).
• static (S): The interface address is statically configured.
Interface This field displays the ID number of the IPv6 interface on which the IPv6 address is created or
through which the neighboring device can be reached.
Sorting by Click one of the following buttons to display and arrange the data according to that button type.
The result is then displayed in the summary table above.
Address Click this button to display and arrange the data according to IPv6 address.
MAC Click this button to display and arrange the data according to MAC address.
Interface Click this button to display and arrange the data according to IPv6 interface.
Table 36 MONITOR > IPv6 Neighbor Table (continued)
LABEL DESCRIPTION
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