Ip Helper Dhcp-Snooping Port Traffic-Suppression - Alcatel-Lucent OmniSwitch 6250 Cli Reference Manual

ip helper dhcp-snooping port traffic-suppression

Configures the traffic suppression status for the port. When this function is enabled, DHCP packets are not
flooded on the default VLAN for the specified port. This will prevent DHCP communications between a
DHCP server and a client when both devices belong to the same VLAN domain.
This command is currently not supported. Traffic suppression is automatically enabled when DHCP
Snooping is enabled for the switch or for specific VLANs.
ip helper dhcp-snooping port slot1/port1[-port1a] traffic-suppression {enable | disable}
Syntax Definitions
slot1/port1[-port1a]
enable
disable
Defaults
By default, traffic suppression is disabled for the port.
Platforms Supported
OmniSwitch 6250
Usage Guidelines
•
Traffic suppression applies only to ports that are associated with a VLAN that has DHCP Snooping
enabled or to all ports when DHCP Snooping is globally enabled for the switch.
•
When traffic suppression is disabled, then DHCP packets are flooded on the default VLAN for the port.
Any DHCP server in the same VLAN domain as the client will receive and respond to such packets;
DHCP Snooping is not invoked in this scenario.
Examples
-> ip helper dhcp-snooping port 1/24 traffic-suppression enable
-> ip helper dhcp-snooping port 2/1-10 traffic-suppression enable
-> ip helper dhcp-snooping port 4/8 traffic-suppression disable
-> ip helper dhcp-snooping port 3/1-5 traffic-suppression disable
Release History
Release 6.6.1; command was introduced.
page 32-32
Specifies the slot number for the module and the physical port number
on that module (e.g. 3/1 specifies port 1 on slot 3). Use a hyphen to
specify a range of ports (e.g. 3/1-16).
Enables traffic suppression for the specified port.
Disables traffic suppression for the specified port.
OmniSwitch 6250 CLI Reference Guide
DHCP Relay Commands
November 2009