Edge-Core AS6700-32X Cli Reference Manual page 764

Chapter 27
| IP Interface Commands
IPv6 Interface
Table 155: show ipv6 interface - display description
Field Description
VLAN A VLAN is marked "up" if the switch can send and receive packets on this interface,
"down" if a line signal is not present, or "administratively down" if the interface has
been disabled by the administrator.
IPv6 IPv6 is marked "enable" if the switch can send and receive IP traffic on this
interface, "disable" if the switch cannot send and receive IP traffic on this interface,
or "stalled" if a duplicate link-local address is detected on the interface.
Link-local Shows the link-local address assigned to this interface
address
Global unicast Shows the global unicast address(es) assigned to this interface
address(es)
Joined group In addition to the unicast addresses assigned to an interface, a node is required to
address(es) join the all-nodes multicast addresses FF01::1 and FF02::1 for all IPv6 nodes within
scope 1 (interface-local) and scope 2 (link-local), respectively.
FF01::1/16 is the transient interface-local multicast address for all attached IPv6
nodes, and FF02::1/16 is the link-local multicast address for all attached IPv6
nodes. The interface-local multicast address is only used for loopback
transmission of multicast traffic. Link-local multicast addresses cover the same
types as used by link-local unicast addresses, including all nodes (FF02::1), all
routers (FF02::2), and solicited nodes (FF02::1:FFXX:XXXX) as described below.
A node is also required to compute and join the associated solicited-node
multicast addresses for every unicast and anycast address it is assigned. IPv6
addresses that differ only in the high-order bits, e.g. due to multiple high-order
prefixes associated with different aggregations, will map to the same solicited-
node address, thereby reducing the number of multicast addresses a node must
join. In this example, FF02::1:FF90:0/104 is the solicited-node multicast address
which is formed by taking the low-order 24 bits of the address and appending
those bits to the prefix.
MTU Maximum transmission unit for this interface.
ND DAD Indicates whether (neighbor discovery) duplicate address detection is enabled.
number of DAD The number of consecutive neighbor solicitation messages sent on the interface
attempts during duplicate address detection.
ND retransmit The interval between IPv6 neighbor solicitation retransmissions sent on an
interval interface during duplicate address detection.
ND advertised The retransmit interval is included in all router advertisements sent out of an
retransmit interface so that nodes on the same link use the same time value.
interval
ND reachable The amount of time a remote IPv6 node is considered reachable after a
time reachability confirmation event has occurred
ND advertised The reachable time is included in all router advertisements sent out of an
reachable time interface so that nodes on the same link use the same time value.
ND advertised Tells the neighbor receiving this message how long this router should be used as
router lifetime a default router.
This example displays a brief summary of IPv6 addresses configured on the switch.
Console#show ipv6 interface brief
Interface VLAN
--------------- ---------- ---------- ------------------------------------
VLAN 1 Up
VLAN 1 Up
VLAN 1 Up
IPv6 IPv6 Address
Up 2001:db8:0:1:2e0:cff:fe02:fd/64
Up 2001:db8:2222:7272::72/96
Up fe80::269:3ef9:fe19:6779/64
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