C
HAPTER
27
| Interface Commands
– 707 –
switchport packet-
rate
This command configures broadcast, multicast and unknown unicast storm
control. Use the
no
form to restore the default setting.
S
YNTAX
switchport
{
broadcast
|
multicast
|
unicast
}
packet-rate
rate
no switchport
{
broadcast
|
multicast
|
unicast
}
broadcast
- Specifies storm control for broadcast traffic.
multicast
- Specifies storm control for multicast traffic.
unicast
- Specifies storm control for unknown unicast traffic.
rate
- Threshold level as a rate; i.e., kilobits per second.
(Range: 64-100000 Kbps for Fast Ethernet ports,
64-1000000 Kbps for Gigabit Ethernet ports)
D
EFAULT
S
ETTING
Broadcast Storm Control: Enabled, packet-rate limit: 64 kbps
Multicast Storm Control: Disabled
Unknown Unicast Storm Control: Disabled
C
OMMAND
M
ODE
Interface Configuration (Ethernet)
C
OMMAND
U
SAGE
◆
When traffic exceeds the threshold specified for broadcast and
multicast or unknown unicast traffic, packets exceeding the threshold
are dropped until the rate falls back down beneath the threshold.
◆
Using both rate limiting and storm control on the same interface may
lead to unexpected results. For example, suppose broadcast storm
control is set to 500 Kbps by the command “switchport broadcast
packet-rate 500,” and the rate limit is set to 20000 Kbps by the
command “rate-limit input 20000" on a Fast Ethernet port. Since 20000
Kbps is 1/5 of line speed (100 Mbps), the received rate will actually be
100 Kbps, or 1/5 of the 500 Kbps limit set by the storm control
command. It is therefore not advisable to use both of these commands
on the same interface.
E
XAMPLE
The following shows how to configure broadcast storm control at 600
kilobits per second:
Console(config)#interface ethernet 1/5
Console(config-if)#switchport broadcast packet-rate 600
Console(config-if)#
Содержание ES3510MA
Страница 1: ...Management Guide www edge core com 8 Port Layer 2 Fast Ethernet Switch...
Страница 4: ...ABOUT THIS GUIDE 4...
Страница 30: ...CONTENTS 30...
Страница 40: ...FIGURES 40...
Страница 46: ...TABLES 46...
Страница 48: ...SECTION I Getting Started 48...
Страница 72: ...SECTION II Web Configuration 72...
Страница 88: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 88...
Страница 115: ...CHAPTER 4 Basic Management Tasks Resetting the System 115 Figure 23 Restarting the Switch Regularly...
Страница 116: ...CHAPTER 4 Basic Management Tasks Resetting the System 116...
Страница 154: ...CHAPTER 5 Interface Configuration VLAN Trunking 154...
Страница 216: ...CHAPTER 8 Spanning Tree Algorithm Configuring Interface Settings for MSTP 216...
Страница 350: ...CHAPTER 14 Security Measures DHCP Snooping 350...
Страница 440: ...CHAPTER 17 IP Services Displaying the DNS Cache 440...
Страница 484: ...CHAPTER 19 Using the Command Line Interface CLI Command Groups 484...
Страница 554: ...CHAPTER 21 System Management Commands Switch Clustering 554...
Страница 574: ...CHAPTER 22 SNMP Commands 574...
Страница 582: ...CHAPTER 23 Remote Monitoring Commands 582...
Страница 636: ...CHAPTER 24 Authentication Commands Management IP Filter 636...
Страница 736: ...CHAPTER 29 Port Mirroring Commands RSPAN Mirroring Commands 736...
Страница 816: ...CHAPTER 34 VLAN Commands Configuring Voice VLANs 816...
Страница 830: ...CHAPTER 35 Class of Service Commands Priority Commands Layer 3 and 4 830...
Страница 848: ...CHAPTER 36 Quality of Service Commands 848...
Страница 900: ...CHAPTER 38 LLDP Commands 900...
Страница 910: ...CHAPTER 39 Domain Name Service Commands 910...
Страница 916: ...CHAPTER 40 DHCP Commands DHCP Client 916...
Страница 948: ...CHAPTER 41 IP Interface Commands IPv6 Interface 948...
Страница 950: ...SECTION IV Appendices 950...
Страница 982: ...INDEX 982...
Страница 983: ......
Страница 984: ...ES3510MA E032010 ST R01 149100000046A...