Accton Technology ES4710BD manual Rate-suppression, Shutdown, Command shutdown no shutdown

ES4710BD 10 Slots L2/L3/L4 Chassis Switch

7.2.1.2.9rate-suppression

Command: rate-suppression {dlf broadcast multicast} <packets> no rate-suppression {dlf broadcast multicast}

Function: Sets the traffic limit for broadcasts, multicasts and unknown destination unicasts on all ports in the switch; the “no rate-suppression” command disables this traffic throttle function on all ports in the switch, i.e., enables broadcasts, multicasts and unknown destination unicasts to pass through the switch at line speed.

Parameters: use dlf to limit unicast traffic for unknown destination; multicast to limit multicast traffic; broadcast to limit broadcast traffic. <packets> stands for the number of packets allowed to pass through per second for non-10Gb ports. For 10 Gb ports, the number of packets allowed to pass through multiplies 1,040. The valid range for both port types is 1 to 262,143.

Command mode: Interface Mode

Default: no limit is set by default. So, broadcasts, multicasts and unknown destination unicasts are allowed to pass at line speed.

Usage Guide: All ports in the switch belong to a same broadcast domain if no VLAN has been set. The switch will send the abovementioned three traffics to all ports in the broadcast domain, which may result in broadcast storm and so may greatly degrade the switch performance. Enabling Broadcast Storm Control can better protect the switch from broadcast storm. Note the difference of this command in 10Gb ports and other ports. If the allowed traffic is set to 3, this means allow 3,120 packets per second and discard the rest for 10Gb ports. However, the same setting for non-10Gb ports means to allow 3 broadcast packets per second and discard the rest.

Example: Setting ports 8 – 10 (1000Mbps) of slot 2 to allow 3 broadcast packets per second. Switch(Config)#interface ethernet 2/8-10 Switch(Config-Port-Range)#rate-suppression broadcast 3

7.2.1.2.10shutdown

Command: shutdown no shutdown

Function: Shuts down the specified Ethernet port; the “no shutdown” command opens the port.

Command mode: Interface Mode

Default: Ethernet port is open by default.

Usage Guide: When Ethernet port is shut down, no data frames are sent in the port, and the port status displayed when the user types the “show interface” command is “down”.

Example: Opening ports 1/1-8. Switch(Config)#interface ethernet1/1-8 Switch(Config-Port-Range)#no shutdown

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