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6 flood guard, 1 configuring flood-guard, Flood guard – Siemens S223 User Manual

Page 236: Configuring flood-guard, Fig. 8.30, Rate limit and flood guard

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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.

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.

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