3com 8807 Reference Guide
834
C
HAPTER
47: DHCP C
ONFIGURATION
C
OMMANDS
View
System view
Parameter
packets number: Sets the maximum times to send ping packets. The number
argument ranges from 0 to 10 and defaults to 2. Value of 0 specifies not to send
any ping packet.
argument ranges from 0 to 10 and defaults to 2. Value of 0 specifies not to send
any ping packet.
timeout milliseconds: Sets the maximum time to wait for a response to a ping
packet. The milliseconds argument is in the unit of milliseconds; it ranges from 0
to 10000 and defaults to 500.
packet. The milliseconds argument is in the unit of milliseconds; it ranges from 0
to 10000 and defaults to 500.
Description
Use the dhcp server ping command to set the maximum times to send ping
packets or the maximum time for the DHCP server to wait for a response after
sending a ping packet.
packets or the maximum time for the DHCP server to wait for a response after
sending a ping packet.
Use the undo dhcp server ping command to revert to the corresponding default
setting.
setting.
c
CAUTION: The host’s interval of sending discover packets is in the range of 15
seconds to 30 seconds. When the ping command is used for collision detection,
the host will fail to apply for IP addresses if the server’s time to wait for a response
to a ping packet is longer than the host’s interval of sending discover packets. So
you had better satisfy the condition that the server’s time to wait for a response to
a ping packet must be shorter than 15 seconds when the ping command is used
for collision detection.
seconds to 30 seconds. When the ping command is used for collision detection,
the host will fail to apply for IP addresses if the server’s time to wait for a response
to a ping packet is longer than the host’s interval of sending discover packets. So
you had better satisfy the condition that the server’s time to wait for a response to
a ping packet must be shorter than 15 seconds when the ping command is used
for collision detection.
Example
# Set the maximum times to send ping packets to 10.
<SW8800> system-view
System View: return to User View with Ctrl+Z.
[SW8800] dhcp server ping packets 10
# Set the maximum time to wait for a response to a ping packet to 600
milliseconds.
milliseconds.
<SW8800> system-view
System View: return to User View with Ctrl+Z.
[SW8800] dhcp server ping timeout 600
dhcp server static-bind
Syntax
dhcp server static-bind ip-address ip-address mac-address mac-address
undo dhcp server static-bind { ip-address ip-address | mac-address
mac-address }
mac-address }
View
VLAN interface view