Siemens S323, S223 user manual Flood Guard, Configuring Flood-Guard, 236 A50010-Y3-C150-2-7619

UMN:CLI	User Manual
	SURPASS hiD 6615 S223/S323 R1.5

8.6Flood Guard

Flood-guard limits number of packets, how many packets can be transmitted, in config- ured bandwidth, whereas Rate limit controls packets through configuring width of band- width, which packets pass through. This function prevents receiving packets more than configured amount without enlarging bandwidth.

<Rate Limit>	<Flood Guard>
	Configure Flood-guard to
Configure Rate Limit on port	allow packets as many as ‘n’
	per a second

Control bandwidth

Bandwidth

1

2

3

: :

n

n+1

n+2

‘n’ packets allowed for a second

Packets

over thrown

away

Fig. 8.30 Rate Limit and Flood Guard

8.6.1Configuring Flood-Guard

To configure the number of packets, which can be transmitted in a second, use the follow- ing command.

Command	Mode	Description
mac-flood-guard PORTS <1-		Limits the number of packets which can be transmitted
2000000>	Bridge	to the port for 1 second.
no mac-flood-guard PORTS		Clears the configured Flood Guard.

To display a configuration of flood guard, use the following command.

Command	Mode	Description
show mac-flood-guard [macs]	Bridge	Shows the configured Flood Guard.

236 A50010-Y3-C150-2-7619