Edge-Core ECS4110-28T Management Manual page 646

| IP Configuration
C 16
HAPTER
Setting the Switch's IP Address (IP Version 6)
Enable IPv6 Explicitly – Enables IPv6 on an interface and assigns it a
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link-local address. Note that when an explicit address is assigned to an
interface, IPv6 is automatically enabled, and cannot be disabled until all
assigned addresses have been removed. (Default: Disabled)
Disabling this parameter does not disable IPv6 for an interface that has
been explicitly configured with an IPv6 address.
MTU – Sets the size of the maximum transmission unit (MTU) for IPv6
packets sent on an interface. (Range: 1280-65535 bytes;
Default: 1500 bytes)
The maximum value set in this field cannot exceed the MTU of the
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physical interface, which is currently fixed at 1500 bytes.
If a non-default value is configured, an MTU option is included in the
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router advertisements sent from this device. This option is provided
to ensure that all nodes on a link use the same MTU value in cases
where the link MTU is not otherwise well known.
IPv6 routers do not fragment IPv6 packets forwarded from other
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routers. However, traffic originating from an end-station connected
to an IPv6 router may be fragmented.
All devices on the same physical medium must use the same MTU in
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order to operate correctly.
IPv6 must be enabled on an interface before the MTU can be set. If
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an IPv6 address has not been assigned to the switch, "N/A" is
displayed in the MTU field.
ND DAD Attempts – The number of consecutive neighbor solicitation
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messages sent on an interface during duplicate address detection.
(Range: 0-600; Default: 3)
Configuring a value of 0 disables duplicate address detection.
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Duplicate address detection determines if a new unicast IPv6
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address already exists on the network before it is assigned to an
interface.
Duplicate address detection is stopped on any interface that has
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been suspended (see
While an interface is suspended, all unicast IPv6 addresses assigned
to that interface are placed in a "pending" state. Duplicate address
detection is automatically restarted when the interface is
administratively re-activated.
An interface that is re-activated restarts duplicate address detection
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for all unicast IPv6 addresses on the interface. While duplicate
address detection is performed on the interface's link-local address,
the other IPv6 addresses remain in a "tentative" state. If no
duplicate link-local address is found, duplicate address detection is
started for the remaining IPv6 addresses.
If a duplicate address is detected, it is set to "duplicate" state, and a
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warning message is sent to the console. If a duplicate link-local
address is detected, IPv6 processes are disabled on the interface. If
a duplicate global unicast address is detected, it is not used. All
– 646 –
"Configuring VLAN Groups" on page 202).