Chapter 26
| IP Interface Commands
Interface Address Configuration and Utilities
– 664 –
Link-local address:
FE80::2E0:CFF:FE00:FD/64
Global unicast address(es):
2001:DB8:2222:7273::72/96, subnet is 2001:DB8:2222:7273::/96
Joined group address(es):
FF02::1:FF00:72
FF02::1:FF00:FD
FF02::1
IPv6 link MTU is 1280 bytes
ND DAD is enabled, number of DAD attempts: 3.
ND retransmit interval is 1000 milliseconds
ND reachable time is 30000 milliseconds
Console#
Related Commands
ipv6 address link-local (662)
show ipv6 interface (665)
ipv6 mtu This command sets the size of the maximum transmission unit (MTU) for IPv6
packets sent on an interface. Use the no form to restore the default setting.
Syntax
ipv6 mtu size
no ipv6 mtu
size - Specifies the MTU size. (Range: 1280-65535 bytes)
Default Setting
1500 bytes
Command Mode
Interface Configuration (VLAN)
Command Usage
â—† The maximum value set by this command cannot exceed the MTU of the
physical interface, which is currently fixed at 1500 bytes.
â—† IPv6 routers do not fragment IPv6 packets forwarded from other routers.
However, traffic originating from an end-station connected to an IPv6 router
may be fragmented.
â—† All devices on the same physical medium must use the same MTU in order to
operate correctly.
â—† IPv6 must be enabled on an interface before the MTU can be set.
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