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Если выключить loopback-detection, порт продолжит работать, несмотря на то, что STP включен.
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SW1(config-if-ethernet1/0/1)#no loopback-detection specified-vlan 13 Jan 10 02:51:29:667 2001 SW1 MODULE_PORT/5/:%LINK-5-CHANGED: Interface Ethernet1/0/1, changed state to UP Jan 10 02:51:29:668 2001 SW1 MODULE_PORT/5/:%LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet1/0/1, changed state to DOWN Jan 10 02:51:29:003 2001 SW1 MODULE_PORT/5/:%LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet1/0/1, changed state to UP Jan 10 02:51:29:006 2001 SW1 MODULE_L2_MSTP/5/:MSTP set port = 1, mst = 0, process = 0 to DISCARDING! Jan 10 02:51:44:893 2001 SW1 MODULE_L2_MSTP/5/:MSTP set port = 1, mst = 0, process = 0 to LEARNING! Jan 10 02:51:59:893 2001 SW1 MODULE_L2_MSTP/5/:MSTP set port = 1, mst = 0, process = 0 to FORWARDING! SW1(config-if-ethernet1/0/1)# SW1(config-if-ethernet1/0/1)# SW1#show spanning-tree *********************************** Process 0 *********************************** -- MSTP Bridge Config Info -- Standard : IEEE 802.1s Bridge MAC : 18:c3:f4:b3:01:14 Bridge Times : Max Age 20, Hello Time 2, Forward Delay 15 Force Version: 3 ########################### Instance 0 ########################### Self Bridge Id : 32768.18:c3:f4:b3:01:14 Root Id : this switch Ext.RootPathCost : 0 Region Root Id : this switch Int.RootPathCost : 0 Root Port ID : 0 Current port list in Instance 0: Ethernet1/0/1 (Total 1) PortName ID ExtRPC IntRPC State Role DsgBridge DsgPort -------------- -------- --------- --------- --- ---- ------------------ -------- Ethernet1/0/1 128.004 0 0 FWD DSGN 32768.18c3f4b30114 128.004 |
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