Chapter 30
| IP Interface Commands
ND Snooping
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ipv6 nd snooping
max-binding
This command sets the maximum number of address entries in the dynamic user
binding table which can be bound to a port. Use the no form to restore the default
setting.
Syntax
ipv6 nd snooping max-binding max-bindings
no ipv6 nd snooping max-binding
max-bindings – The maximum number of address entries in the dynamic
user binding table which can be bound to a port. (Range: 1-5)
Default Setting
5
Command Mode
Interface Configuration (Ethernet, Port Channel)
Example
Console(config)#ipv6 nd snooping max-binding 200
Console(config)#
ipv6 nd snooping trust This command configures a port as a trusted interface from which prefix
information in RA messages can be added to the prefix table, or NS messages can
be forwarded without validation. Use the no form to restore the default setting.
Syntax
[no] ipv6 nd snooping trust
Default Setting
Not trusted
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
◆ In general, interfaces facing toward to the network core, or toward routers
supporting the Network Discovery protocol, are configured as trusted
interfaces.
◆ RA messages received from a trusted interface are added to the prefix table and
forwarded toward their destination.
◆ NS messages received from a trusted interface are forwarded toward their
destination. Nothing is added to the dynamic user binding table.
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