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Global Configuration Mode.
Examples:
Set the timeout period (in ms) of waiting for each reply message (Echo Request) in Ping-detection
of conflict on DHCP server as 600ms.
Switch(config)#ip dhcp conflict timeout 600
Related Command:
ip dhcp conflict ping-detection enable, ip dhcp ping packets
26.1.20 lease
Command:
lease { [<days>] [<hours>][<minutes>] | infinite }
no lease
Function:
Sets the lease time for addresses in the address pool; the “no lease” command restores the default
setting.
Parameters:
<days> is number of days from 0 to 365;
<hours> is number of hours from 0 to 23;
<minutes> is number of minutes from 0 to 59;
infinite means perpetual use.
Default:
The default lease duration is 1 day.
Command Mode:
DHCP Address Pool Mode
Usage Guide:
DHCP is the protocol to assign network addresses dynamically instead of permanently, hence the
introduction of ease duration. Lease settings should be decided based on network conditions: too
long lease duration offsets the flexibility of DHCP, while too short duration results in increased
network traffic and overhead. The default lease duration of switch is 1 day.
Example:
Setting the lease of DHCP pool “1” to 3 days 12 hours and 30 minutes.
Switch(dhcp-1-config)#lease 3 12 30
26.1.21 netbios-name-server
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