Show ipv6 mtu – Microsens MS453490M Management Guide User Manual
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C
HAPTER
41
| IP Interface Commands
IPv6 Interface
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This example displays a brief summary of IPv6 addresses configured on the
switch.
Console#show ipv6 interface brief
Interface VLAN IPv6 IPv6 Address
--------------- ---------- ---------- ------------------------------------
VLAN 1 Up Up 2001:DB8:2222:7273::72/96
VLAN 1 Up Up FE80::2E0:CFF:FE00:FD%1/64
Console#
R
ELATED
C
OMMANDS
show ipv6 mtu
This command displays the maximum transmission unit (MTU) cache for
destinations that have returned an ICMP packet-too-big message along
with an acceptable MTU to this switch.
C
OMMAND
M
ODE
Normal Exec, Privileged Exec
Link-local
address
Shows the link-local address assigned to this interface
Global unicast
address(es)
Shows the global unicast address(es) assigned to this interface
Joined group
address(es)
In addition to the unicast addresses assigned to an interface, a host is also
required to listen to all-nodes multicast addresses FF01::1 (interface-local
scope) and FF02::1 (link-local scope).
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.
ND DAD
Indicates whether (neighbor discovery) duplicate address detection is
enabled.
number of DAD
attempts
The number of consecutive neighbor solicitation messages sent on the
interface during duplicate address detection.
ND retransmit
interval
The interval between IPv6 neighbor solicitation retransmissions sent on an
interface during duplicate address detection.
Table 140: show ipv6 interface - display description (Continued)
Field
Description