User Guide
98
Managing Physical Interfaces
Loopback Detection Configuration
4.2 Using the CLI
Follow these steps to configure loopback detection:
Step 1
configure
Enter global configuration mode.
Step 2
loopback-detection
Enable the loopback detection feature globally. By default, it is disabled.
Step 3
loopback-detection interval
interval-time
Set the interval of sending loopback detection packets which is used to detect the loops in
the network.
interval-time:
The interval of sending loopback detection packets. The valid values are from
1 to 1000 seconds. By default, the value is 30 seconds.
Step 4
loopback-detection recovery-time
recovery-time
Set the auto-recovery time, after which the blocked port in Auto Recovery mode can
automatically be recovered to normal status.
recovery-time
: Specify the detection interval, ranging from 2 to 100,000 seconds. The
default value is 90.
Step 5
interface { fastEthernet
port
| range fastEthernet
port-list
| gigabitEthernet
port
| range
gigabitEthernet
port-list
| ten-gigabitEthernet
port
| ten-range gigabitEthernet
port-list
|
port-channel
port-channel
| range port-channel
port-channel-list
|}
Enter interface configuration mode.
Step 6
loopback-detection
Enable loopback detection for the port. By default, it is disabled.
Step 7
loopback-detection config process-mode {
alert | port-based | vlan-based
} recovery-
mode {
auto | manual
}
Set the process mode when a loopback is detected on the port. There are three modes:
alert
:
The switch will only display alerts when a loopback is detected. It is the default setting.
port-based
: In addition to displaying alerts, the switch will block the port on which the loop
is detected.
vlan-based
: In addition to displaying alerts, the switch will block the VLAN of the port in
which the loop is detected.
Set the recovery mode for the blocked port. There are two modes:
auto
: After the recovery time expires, the blocked port will automatically recover to normal
status and restart to detect loops in the network.
manual
: The blocked port can only be released manually. You can use the command
‘loopback-detection recover’ to recover the blocked port to normal status.
Step 9
show loopback-detection global
Verify the global configuration of Loopback Detection.
Содержание JetStream T2600G-28TS
Страница 32: ...Part 1 Accessing the Switch CHAPTERS 1 Overview 2 Web Interface Access 3 Command Line Interface Access ...
Страница 136: ...Part 4 Configuring LAG CHAPTERS 1 LAG 2 LAG Configuration 3 Configuration Examples 4 Appendix Default Parameters ...
Страница 154: ...Part 5 Configuring DDM Only for Certain Devices CHAPTERS 1 Overview 2 DDM Configuration 3 Appendix Default Parameters ...
Страница 264: ...Configuring VLAN VPN Configuration Examples User Guide 235 Figure 4 2 Create VLAN 100 ...
Страница 265: ...User Guide 236 Configuring VLAN VPN Configuration Examples Figure 4 3 Create VLAN 200 ...
Страница 268: ...Configuring VLAN VPN Configuration Examples User Guide 239 Figure 4 7 Creating VLAN 100 ...
Страница 275: ...User Guide 246 Configuring VLAN VPN Configuration Examples Figure 4 11 Create VLAN 100 ...
Страница 276: ...Configuring VLAN VPN Configuration Examples User Guide 247 Figure 4 12 Create VLAN 200 ...
Страница 277: ...User Guide 248 Configuring VLAN VPN Configuration Examples Figure 4 13 Create VLAN 1050 ...
Страница 280: ...Configuring VLAN VPN Configuration Examples User Guide 251 Figure 4 18 Creating VLAN 100 ...
Страница 285: ...Part 11 Configuring GVRP CHAPTERS 1 Overview 2 GVRP Configuration 3 Configuration Example 4 Appendix Default Parameters ...
Страница 512: ...Part 16 Configuring L2PT CHAPTERS 1 Overview 2 L2PT Configuration 3 Configuration Example 4 Appendix Default Parameters ...
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Страница 748: ...Part 24 Configuring AAA CHAPTERS 1 Overview 2 AAA Configuration 3 Configuration Examples 4 Appendix Default Parameters ...
Страница 801: ...Part 26 Configuring Port Security CHAPTERS 1 Overview 2 Port Security Configuration 3 Appendix Default Parameters ...
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Страница 874: ...Configuring ACL User Guide 845 ...
Страница 962: ...Part 31 Configuring DoS Defend CHAPTERS 1 Overview 2 DoS Defend Configuration 3 Appendix Default Parameters ...
Страница 969: ...Part 32 Monitoring the System CHAPTERS 1 Overview 2 Monitoring the CPU 3 Monitoring the Memory ...
Страница 974: ...Monitoring the System Monitoring the Memory User Guide 945 Unit Current Memory Utilization 1 74 ...
Страница 975: ...Part 33 Monitoring Traffic CHAPTERS 1 Traffic Monitor 2 Appendix Default Parameters ...
Страница 982: ...Part 34 Mirroring Traffic CHAPTERS 1 Mirroring 2 Configuration Examples 3 Appendix Default Parameters ...
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Страница 1112: ...Part 39 Diagnosing the Device Network CHAPTERS 1 Diagnosing the Device 2 Diagnosing the Network 3 Appendix Default Parameters ...