A VLAN range is configured for the main interface to send loop detection packets. This command can be configured only on dot1q VLAN tag termination sub-interfaces and main interfaces. Runcommit The configuration is committed. (Optional) Configuring a VLAN Range for Loop Detection Packets Sent by...
If they do, the device considers that the port is on a looped link. Loop detection usually works within a VLAN. If a detection frame is returned with a different VLAN tag than it was sent out with, an inter-VLAN loop has occu...
1. Entire-port transparent transmission is configured on the main interface. 2. Loop detection is enabled on the main interface. 3. The detection VLAN on the local main interface is the same as the detection VLAN on the peer sub-interface (if the detection VLAN is not configured, the servi...
·Shutdown—When a loop is detected on a port, the device performs the following operations: ¡Generates a log. ¡Shuts down the port to disable the port from receiving or sending frames. The device automatically sets the port to the forwarding st...
its interfaces connected, then your switch's BPDUs circle back to itself. That's because your switch sends out BPDUs towards the unmanaged switch, and the unmanaged switch sends those BPDUs out all of its other ports, which then send it back via the port that's connected to your ...
its interfaces connected, then your switch's BPDUs circle back to itself. That's because your switch sends out BPDUs towards the unmanaged switch, and the unmanaged switch sends those BPDUs out all of its other ports, which then send it back via the port that's connected to your switch...
port hybrid pvid vlan 222qos trust dscppoe enableloopback-detection enable vlan 222 111loopback-detection action shutdown ther is also a command in the global config mode: loopback-detection interval-time 5 Now I've been testing it and the switch doesn't seem to be generating a SNMP trap...
time —Time interval to send loop-detect frame, in seconds. The range is from 1 to 10. The default is 5. action syslog —Displays a system message and does not error-disable any port. If you use the no form of this command, the system ...
source-port —Error-disables the source port. If you use the no form of this command, the destination port is error-disabled. In the example configuration on the left (Device(config-if)# loopdetect 7), the interface is configured to send loop...
virtual switch220shuts down all but one of its uplink ports222in aggregation group250. For example in FIG. 2, virtual switch220keeps Port 1 running and shuts down the remaining Port 2. When the cause for the loop fault is removed, Port 2 is enabled again to receive and send LACPDU mess...