Qtech QSW-8200-28T-AC — команды для функции обнаружения петли в сетевых устройствах [24/85]
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User Manual
Chapter 3. Commands for Port Loopback Detection Function 24
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Switch(config)#interface ethernet 1/0/2
Switch(Config-If-Ethernet1/0/2)#loopback-detection control shutdown
Switch(Config-If-Ethernet1/0/2)#no loopback-detection control
3.3 loopback-detection control-recovery timeout
Command: loopback-detection control-recovery timeout <0-3600>
Function: This command is used to recovery to uncontrolled state after a special time
when a loopback being detected by the port entry be controlled state.
Parameters: <0-3600> second is recovery time for be controlled state, 0 is not recovery
state.
Default: The recovery is not automatic by default.
Command Mode: Global Configuration Mode.
Usage Guide: When a port detects a loopback and works in control mode, the ports
always work in control mode and not recover. The port will not sent packet to detection
in shutdown mode, however, the port will sent loopback-detection packet to detection
whether have loopback in block or learning mode. If the recovery time is configured,
the ports will recovery normal state when the overtime is time-out. The recovery time
is a useful time for shutdown control mode, because the port can keep on detection
loopback in the other modes, so suggest not to use this command.
Examples: Enable automatic recovery of the loopback-detection control mode after
30s.
Switch(config)#loopback-detection control-recovery timeout 30
3.4 loopback-detection interval-time
Command: loopback-detection interval-time <loopback> <no-loopback>
no loopback-detection interval-time
Function: Set the loopback detection interval. The no operate closes the loopback
detection interval function.
Parameters: <loopback > the detection interval if any loopback is found, ranging from 5
to 300, in seconds.
<no-loopback > the detection interval if no loopback is found, ranging
from 1 to 30, in seconds.
Default: The default value is 5s with loopbacks existing and 3s otherwise.
Command Mode: Global Mode.
Usage Guide: When there is no loopback detection, the detection interval can be
relatively shorter, for too short a time would be a disaster for the whole network if
there is any loopback. So, a relatively longer interval is recommended when loopbacks
exist.
Example: Set the loopback diction interval as 35, 15.
Switch(config)#loopback-detection interval-time 35 15
Содержание
- Chapter 1 commands for network port configuration 7 p.2
- Show isolate port group 21 p.2
- Chapter 2 commands for port isolation function 20 p.2
- Loopback detection specified vlan 25 p.2
- Loopback detection interval time 24 p.2
- Loopback detection control recovery timeout 24 p.2
- Loopback detection control 23 p.2
- Isolate port group switchport interface 20 p.2
- Isolate port group 20 p.2
- Isolate port apply 21 p.2
- Debug loopback detection 23 p.2
- Content p.2
- Commands for ethernet port configuration 7 p.2
- Chapter 3 commands for port loopback detection function 23 p.2
- Show loopback detection 25 p.2
- Configuration p.7
- Commands for ethernet port configuration p.7
- Chapter 1 commands for network port p.7
- Isolate port group switchport interface p.20
- Isolate port group p.20
- Chapter 2 commands for port isolation function p.20
- Show isolate port group p.21
- Isolate port apply p.21
- Loopback detection control p.23
- Function p.23
- Debug loopback detection p.23
- Chapter 3 commands for port loopback detection p.23
- Loopback detection interval time p.24
- Loopback detection control recovery timeout p.24
- Show loopback detection p.25
- Loopback detection specified vlan p.25
- Debug uldp event p.26
- Debug uldp error p.26
- Debug uldp p.26
- Chapter 4 commands for uldp p.26
- Debug uldp packet p.27
- Debug uldp interface ethernet p.27
- Debug uldp fsm interface ethernet p.27
- Uldp enable p.28
- Uldp aggressive mode p.28
- Uldp manual shutdown p.29
- Uldp hello interval p.29
- Uldp disable p.29
- Uldp reset p.30
- Uldp recovery time p.30
- Show uldp p.30
- Debug lldp packets p.32
- Debug lldp p.32
- Clear lldp remote table p.32
- Chapter 5 commands for lldp function p.32
- Lldp mode p.33
- Lldp enable port p.33
- Lldp enable p.33
- Lldp notification interval p.34
- Lldp neighbors max num p.34
- Lldp msgtxhold p.34
- Lldp transmit optional tlv p.35
- Lldp transmit delay p.35
- Lldp toomanyneighbors p.35
- Lldp tx interval p.36
- Lldp trap p.36
- Show debugging lldp p.37
- Show lldp p.37
- Show lldp neighbors interface ethernet p.38
- Show lldp interface ethernet p.38
- Show lldp traffic p.39
- Interface port channel p.40
- Debug port channel p.40
- Chapter 6 commands for port channel p.40
- Lacp timeout p.41
- Lacp system priority p.41
- Lacp port priority p.41
- Port group mode p.42
- Port group p.42
- Load balance p.42
- Show port group p.43
- Chapter 7 commands for mtu p.45
- Chapter 8 commands for efm oam p.46
- Debug ethernet oam fsm p.46
- Debug ethernet oam error p.46
- Clear ethernet oam p.46
- Ethernet oam p.47
- Debug ethernet oam timer p.47
- Debug ethernet oam packet p.47
- Ethernet oam errored frame threshold low p.48
- Ethernet oam errored frame threshold high p.48
- Ethernet oam errored frame window p.49
- Ethernet oam errored frame period threshold low p.49
- Ethernet oam errored frame period threshold high p.49
- Ethernet oam errored frame seconds threshold high p.50
- Ethernet oam errored frame period window p.50
- Ethernet oam errored frame seconds window p.51
- Ethernet oam errored frame seconds threshold low p.51
- Ethernet oam errored symbol period threshold high p.52
- Ethernet oam errored symbol period threshold low p.52
- Ethernet oam link monitor p.53
- Ethernet oam errored symbol period window p.53
- Ethernet oam remote failure p.54
- Ethernet oam period p.54
- Ethernet oam mode p.54
- Ethernet oam remote loopback supported p.55
- Ethernet oam remote loopback p.55
- Show ethernet oam p.56
- Ethernet oam timeout p.56
- Show ethernet oam events p.61
- Show ethernet oam link events configuration p.64
- Show ethernet oam loopback status p.65
- Bpdu tunnel stp p.67
- Bpdu tunnel gvrp p.67
- Bpdu tunnel dmac p.67
- Chapter 9 commands for bpdu tunnel p.67
- Bpdu tunnel uldp p.68
- Bpdu tunnel lacp p.68
- Bpdu tunnel dot1x p.68
- Description language province state city county street locationnum location floor room postal otherinfo p.70
- Civic location p.70
- Chapter 10 commands for lldp med p.70
- Lldp med fast count p.71
- Ecs location p.71
- Lldp transmit med tlv capability p.72
- Lldp transmit med tlv all p.72
- Lldp med trap p.72
- Lldp transmit med tlv inventory p.73
- Lldp transmit med tlv extendpoe p.73
- Network policy p.74
- Lldp transmit med tlv networkpolicy p.74
- Show lldp p.75
- Show lldp neighbors p.77
- Clear port security p.78
- Switchport port security p.78
- Show port security p.78
- Chapter 11 commands for port security p.78
- Switchport port security mac address p.79
- Switchport port security aging p.79
- Switchport port security maximum p.80
- Switchport port security mac address sticky p.80
- Switchport port security violation p.81
- Show transceiver p.82
- Debug transceiver p.82
- Clear transceiver threshold violation p.82
- Chapter 12 commands for ddm p.82
- Show transceiver threshold violation p.83
- Transceiver monitoring p.83
- Transceiver threshold p.84
- Transceiver monitoring interval p.84
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