
C
HAPTER
34
| Spanning Tree Commands
– 1078 –
E
XAMPLE
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree edge-port
Console(config-if)#spanning-tree bpdu-filter
Console(config-if)#
R
ELATED
C
OMMANDS
spanning-tree edge-port (1080)
spanning-tree
bpdu-guard
This command shuts down an edge port (i.e., an interface set for fast
forwarding) if it receives a BPDU. Use the
no
form without any keywords to
disable this feature, or with a keyword to restore the default settings.
S
YNTAX
spanning-tree
bpdu-guard
[
auto-recovery
[
interval
interval
]]
no spanning-tree
bpdu-guard
[
auto-recovery
[
interval
]]
auto-recovery
- Automatically re-enables an interface after the
specified interval.
interval
- The time to wait before re-enabling an interface.
(Range: 30-86400 seconds)
D
EFAULT
S
ETTING
BPDU Guard: Disabled
Auto-Recovery: Disabled
Auto-Recovery Interval: 300 seconds
C
OMMAND
M
ODE
Interface Configuration (Ethernet, Port Channel)
C
OMMAND
U
SAGE
◆
An edge port should only be connected to end nodes which do not
generate BPDUs. If a BPDU is received on an edge port, this indicates
an invalid network configuration, or that the switch may be under
attack by a hacker. If an interface is shut down by BPDU Guard, it must
be manually re-enabled using the
no
spanning-tree spanning-disabled
command if the auto-recovery interval is not specified.
◆
Before enabling BPDU Guard, the interface must be configured as an
edge port with the
spanning-tree edge-port
command. Also note that if
the edge port attribute is disabled on an interface, BPDU Guard will also
be disabled on that interface.
E
XAMPLE
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree edge-port
Console(config-if)#spanning-tree bpdu-guard
Console(config-if)#
Содержание ES3528MV2
Страница 1: ...Management Guide www edge core com ES3528MV2 ES3528MV2 DC 28 Port Fast Ethernet Layer 2 Switch...
Страница 2: ......
Страница 4: ......
Страница 48: ...CONTENTS 48...
Страница 68: ...SECTION I Getting Started 68...
Страница 78: ...CHAPTER 1 Introduction System Defaults 78...
Страница 96: ...SECTION II Web Configuration 96...
Страница 116: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 116...
Страница 148: ...CHAPTER 4 Basic Management Tasks Resetting the System 148...
Страница 192: ...CHAPTER 5 Interface Configuration VLAN Trunking 192 Figure 65 Configuring VLAN Trunking...
Страница 226: ...CHAPTER 6 VLAN Configuration Configuring VLAN Translation 226...
Страница 236: ...CHAPTER 7 Address Table Settings Configuring MAC Address Mirroring 236...
Страница 270: ...CHAPTER 9 Congestion Control Automatic Traffic Control 270...
Страница 300: ...CHAPTER 11 Quality of Service Attaching a Policy Map to a Port 300...
Страница 418: ...CHAPTER 13 Security Measures DHCP Snooping 418...
Страница 588: ...CHAPTER 15 IP Configuration Setting the Switch s IP Address IP Version 6 588...
Страница 606: ...CHAPTER 16 IP Services Configuring the PPPoE Intermediate Agent 606...
Страница 676: ...CHAPTER 17 Multicast Filtering Multicast VLAN Registration for IPv6 676...
Страница 772: ...CHAPTER 20 System Management Commands Switch Clustering 772...
Страница 802: ...CHAPTER 22 Remote Monitoring Commands 802...
Страница 808: ...CHAPTER 23 Flow Sampling Commands 808...
Страница 872: ...CHAPTER 24 Authentication Commands PPPoE Intermediate Agent 872...
Страница 950: ...CHAPTER 25 General Security Measures Port based Traffic Segmentation 950...
Страница 1002: ...CHAPTER 27 Interface Commands Power Savings 1002...
Страница 1016: ...CHAPTER 28 Link Aggregation Commands Trunk Status Display Commands 1016...
Страница 1046: ...CHAPTER 30 Congestion Control Commands Automatic Traffic Control Commands 1046...
Страница 1058: ...CHAPTER 32 UniDirectional Link Detection Commands 1058...
Страница 1064: ...CHAPTER 33 Address Table Commands 1064...
Страница 1124: ...CHAPTER 35 ERPS Commands 1124...
Страница 1168: ...CHAPTER 36 VLAN Commands Configuring Voice VLANs 1168...
Страница 1182: ...CHAPTER 37 Class of Service Commands Priority Commands Layer 3 and 4 1182...
Страница 1202: ...CHAPTER 38 Quality of Service Commands 1202...
Страница 1360: ...CHAPTER 41 CFM Commands Delay Measure Operations 1360...
Страница 1382: ...CHAPTER 43 Domain Name Service Commands 1382...
Страница 1440: ...SECTION IV Appendices 1440...
Страница 1468: ...COMMAND LIST 1468...
Страница 1479: ......
Страница 1480: ...ES3528MV2 ES3528MV2 DC E112013 ST R03...