C
HAPTER
45
| IP Interface Commands
ND Snooping
– 1433 –
DEFAULT SETTING
Disabled
COMMAND MODE
Global Configuration
COMMAND USAGE
If auto-detection is enabled, the switch periodically sends an NS message
to determine is a client listed in the dynamic binding table still exists. If it
does not receive an RA message in response after the configured timeout,
the entry is dropped. If the switch receives an RA message before the
timeout expires, it resets the lifetime for the dynamic binding, and the
auto-detection process resumes.
EXAMPLE
Console(config)#ipv6 nd snooping auto-detect
Console(config)#
ipv6 nd snooping
auto-detect
retransmit count
This command sets the number of times the auto-detection process sends
an NS message to determine if a dynamic user binding is still valid. Use the
no form to restore the default setting.
SYNTAX
ipv6 nd snooping auto-detect retransmit count retransmit-times
no ipv6 nd snooping auto-detect retransmit count
retransmit-times – The number of times to send an NS message to
determine if a client still exists. (Range: 1-5)
DEFAULT SETTING
3
COMMAND MODE
Global Configuration
COMMAND USAGE
The timeout after which the switch will delete a dynamic user binding if no
RA message is received is set to the retransmit count x the retransmit
interval (see the ipv6 nd snooping auto-detect retransmit interval
command). Based on the default settings, this is 3 seconds.
EXAMPLE
Console(config)#ipv6 nd snooping auto-detect retransmit count 5
Console(config)#
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