3Com 4210 Release Notes page 15

Switch 4210 V3.01.09 Release Notes
Version number Item Description
seconds.
[4210-Ethernet1/0/1]link-delay 5
Command 2
Syntax:
[undo]loopback-detection interface-list enable
View : system view
Parameter:
interface-list: Specify the port list. The expression
is as descript below:
interface-list = { interface-type interface-number
[ to interface-type interface-number ] }&<1-10>
Description: It is used to batch configure the
loopback-detection function on the ports.
Example:
# Configure Ethernet1/0/1 to Ethernet1/0/5
loopback-detection enable.
[4210]loopback-detection ethernet1/0/1 to ethernet
1/0/5 enable
Command 3
Syntax:
[undo]loopback-detection shutdown enable
View : interface view
Parameter: None
Description: It is used to configure the loopback-
detection shutdown mode.
Example:
# Configure Ethernet1/0/1 loopback-detection
shutdown enable.
[4210-Ethernet1/0/1]loopback-detection shutdown
enable
Command 4
Syntax:
[undo]arp anti-attack valid-check enable
View : system view
Parameter: None
Description: It is used to configure the source
MAC address consistency check of ARP packet. It
is disabled in default. Once enable this function,
the ARP packet will be dropped if the source MAC
address in layer 2 is not equal to the source MAC
address in layer 3.
February 27, 2009 Page 15 of 43