D-Link DES-3528 - xStack Switch - Stackable, Cli Reference Manual

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xStack® DES-3528/DES-3552 Series Layer 2 Managed Stackable Fast Ethernet Switch CLI Reference Guide
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Layer 3 CPU Filter Commands
The L3 CPU Filter commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters)
in the following table.
When the Switch receives a packet such as PIM, DVMRP or IGMP query, the L3 CPU filter mode will determine how
the packet is handled. If the mode is disabled, the packets will be sent to the CPU and will be treated according to the
RFC standards. If the mode is enabled, the packets will be discarded. That means the packets will not be sent to the
CPU and will not be propagated.
Command Parameters
config cpu_filter l3_control_pkt <portlist> [{dvmrp | pim | igmp_query}(1) | all] state [enable | disable]
show cpu_filter l3_control_pkt
ports
{<portlist>}
Each command is listed, in detail, in the following sections.
config cpu_filter l3_control_pkt
Purpose Used to discard the l3 control packets sent to CPU from specific ports.
Syntax config cpu_filter l3_control_pkt <portlist> [{dvmrp | pim | igmp_query}(1) | all] state
[enable | disable]
Description This command is used to discard the l3 control packets sent to CPU from specific ports.
Parameters portlist – Specifies the port list to filter control packet.
dvmrp – Speficies that the filtered L3 control protocol as DVMRP.
pim – Speficies that the filtered L3 control protocol as PIM.
igmp_query – Speficies that the filtered L3 control protocol as IGMP query.
state – Enable or disable the filtering function. Default is disable .
Restrictions Only Administrator and Operator and Power-User-level users can issue this command.
Example usage:
To filter DVMRP and PIM in port 1-26
DES-3528:admin# config filter control_packet 1-26 dvmrp pim state enable
Command: config filter control_packet 1-26 dvmrp pim state enable
Success.
DES-3528:admin#
show cpu_filter l3_control_pkt ports
Purpose Used to display the l3 control packet CPU filtering status.
Syntax show cpu_filter l3_control_pkt ports {<portlist>}
Description This command is used to display the l3 control packet CPU filtering status.
Parameters portlist – Specifies the port list to filter control packet.
Restrictions None.
Example usage:
To display the filtering status:
DES-3528:admin# show cpu_filter l3_control_pkt ports 1:1-1:2
Command: show cpu_filter l3_control_pkt ports 1:1-1:2