PLANET XGS3-24040 - Manual (Page 360)

27-73
snooping binding dot1x“ command.
Only after the DHCP SNOOPING binding function is enabled, the binding ARP function can be set.
Example:
Enable the binding USER funciton on port ethernet1/1.
switch(config)#interface ethernet 1/1
switch(Config- Ethernet 1/1)# ip dhcp snooping binding user-control
Relative Command:
ip dhcp snooping binding enable
ip dhcp snooping binding dot1x
27.12 ip dhcp snooping binding user-control max-user
Command:
ip dhcp snooping binding user-control max-user <number>
no ip dhcp snooping binding user-control max-user
Function:
Set the max number of users allowed to access the port when enabling DHCP Snooping binding
user funciton; the no operation of this command will restore default value.
Parameters:
<number> the max number of users allowed to access the port, from 0 to 1024.
Command Mode:
Port Configuration Mode.
Default Settings:
The max number of users allowed by each port to access is 1024.
Usage Guide:
This command defines the max number of trust users distributed according to binding information,
with ip dhcp snooping binding user-contrl enabled on the port. By default, the number is 1024.
Considering the limited hardware resources of the switch, the actual number of trust users
distributed depends on the resource amount. If a bigger max number of users is set using this
command, DHCP Snooping will distribute the binding informaiton of untrust users to hardware to be
trust users as long as there is enough available resources. Otherwise, DHCP Snooping will change
the distributed binging informaiton accordint to the new smaller max user number. When the
number of distributed bingding informaiton entries reaches the max limit, no new DHCP will be able
to become trust user or to access other network resouces via the switch.
Examples:
Enable DHCP Snooping binding user funtion on Port ethernet1/1, setting the max number of user
allowed to access by Port Ethernet1/1 as 5.
Switch(Config-If-Ethernet1/1)# ip dhcp snooping binding user-control max-user 5
Related Command:
ip dhcp snooping binding user-control