Netgear M4100-12G-POE+ (GSM7212P) - 12-Port Managed Gigabit Switch Guide De Logiciel

Use the all keyword to display the per-port configuration parameters for all interfaces, or 
specify the slot/port to display information about a specific interface.

In 802.3x flow control, the MAC control PAUSE operation is specified in IEEE 802.3 Annex 
31 B. It allows traffic from one device to be throttled for a specified period of time and is 
defined for devices that are directly connected. A device that needs to inhibit transmission of 
data frames from another device on the LAN transmits a PAUSE frame as defined in the 
IEEE specification.

This feature allows the user to configure the switch to use symmetric, asymmetric, or no flow 
control. Asymmetric flow control allows the switch to respond to received PAUSE frames, but 
the port cannot generate PAUSE frames. Symmetric flow control allows the switch to both 
respond to and generate MAC control PAUSE frames.

Use this command to enable or disable the symmetric or asymmetric flow control on the 
switch. Use the no form of command to disable the symmetric or asymmetric flow control. 

Asymmetric here means that Tx Pause can never be enabled. Only Rx Pause can be 

enabled.

Global Config

Interface Config

Format

show storm-control [all | <slot/port>]

Mode

Privileged EXEC

Bcast Mode

Shows whether the broadcast storm control mode is enabled or disabled. The factory 
default is disabled.

Bcast Level

The broadcast storm control level.

Mcast Mode

Shows whether the multicast storm control mode is enabled or disabled.

Mcast Level

The multicast storm control level.

Ucast Mode

Shows whether the Unknown Unicast or DLF (Destination Lookup Failure) storm control 
mode is enabled or disabled.

Ucast Level

The Unknown Unicast or DLF (Destination Lookup Failure) storm control level.

Default

Disabled

Format

flowcontrol {symmetric | asymmetric}

Mode