Siemens S223 User Manual

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UMN:CLI                                                                                                                                                              User  Manual 
SURPASS hiD 6615 S223/S323 R1.5 
236                                                                         A50010-Y3-C150-2-7619 
8.6 Flood 
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>
Bandwidth
Control 
bandwidth
Configure Rate Limit on port
1
2
3
n
:
:
n+1
n+2
Configure Flood-guard to 
allow packets as many as ‘n’ 
per a second
n’ packets 
allowed for 
a second
Packets 
over thrown 
away
 
Fig. 8.30 
Rate Limit and Flood Guard 
 
8.6.1 Configuring 
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-
2000000> 
Limits the number of packets which can be transmitted 
to the port for 1 second. 
no mac-flood-guard PORTS
 
Bridge 
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.