![Qtech QSW-3200-24T [83/146] Enable disable stp remote loop detect](/img/pdf.png)
Qtech QSW-3200-24T [83/146] Enable disable stp remote loop detect
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71
The bridge is executing the IEEE Rapid Spanning Tree protocol
The bridge has priority 32768, MAC address: 000a.5a00.0001
Configured Hello Time 2 second(s), Max Age 20 second(s),
Forward Delay 15 second(s)
Root Bridge has priority 32768, MAC address 000a.5a00.0001
Path cost to root bridge is 0
Stp top change 42 times
Port 1 (Ethernet0/1) of bridge is disabled
Spanning tree protocol is enabled
remote loop detect is enabled
The port is a Designated
Port Port path cost 200000
Port priority 128
Designated bridge has priority 32768, MAC address 000a.5a00.0001
The Port is a non-edge port
Connected to a point-to-point LAN segment
Maximum transmission limit is 3 BPDUs per hello time
Times: Hello Time 2 second(s), Max Age 20 second(s)
Forward Delay 15 second(s), Packet Age 6
sent BPDU: 9
TCN: 0, RST: 9, Config BPDU: 0
received BPDU: 4040
TCN: 0, RST: 4040, Config BPDU: 0
9.2.16 Enable/disable STP remote-loop-detect
When multi-layer cascading, if switch in media layer shut down STP, the BPDU packet sent by
upper switch will be cut by switch in media layer. When there is loop in the network below the
media layer, upper switch cannot detect the loop. Remote loop detect is the complementary for
this situation.
Enable STP remote-loop-detect
In interface configuration mode
spanning-tree remote-loop-detect
In global configuration mode
spanning-tree remote-loop-detect interface
Use no command to disable this function.
For example:
! Enable spanning-tree remote-loop-detect interface of Ethernet 0/1
QTECH(config)#spanning-tree remote-loop-detect interface ethernet 0/1
! Disable remote-loop-detect of Ethernet 0/1
QTECH(config-if-ethernet-0/1)#no spanning-tree remote-loop-detect
9.3 Brief Introduction of MSTP
Multiple spanning tree(IEEE802.1S, MSTP) is the upgrade for SST(Simple spanning tree,
IEEE8021.D/8021,W). SST can realize link redundancy and loopback but cause the waste of
effective bandwidth and overload of some link but backup of others because all vlans share a
Содержание
- Qsw 3200 24ес 1
- Интеллектуальные коммутаторы уровня доступа и агрегации 1
- Техническое описание 1
- Chapter 1 accessing switch 1 2
- Chapter 2 port configuration 10 2
- Content 2
- Chapter 3 vlan configuration 25 3
- Chapter 4 arp configuration 34 4
- Chapter 5 multicast protocol configuration 35 5
- Chapter 6 dhcp configuration 47 6
- Chapter 7 acl configuration 50 6
- Chapter 8 qos configuration 58 6
- Chapter 9 stp configuration 66 7
- Chapter 10 802 x configuration command 76 8
- Chapter 11 sntp client configuration 82 8
- Chapter 12 syslog configiration 85 8
- Chapter 13 ssh configuration 90 9
- Chapter 14 switch manage and maintenance 92 9
- Chapter 15 lldp configuration 111 10
- Chapter 16 errp command configuration 114 10
- Chapter 17 pppoe plus configuration 118 10
- Chapter 18 cfm configuration 119 11
- Chapter 19 flex links configuration 125 11
- Chapter 20 efm configuration 128 11
- 4 show efm status 132 20 5 show efm info 133 20 6 show efm discovery 133 20 7 show clear efm statistics 133 20 8 show remote mib 134 12
- Configure response timeout 129 20 configure link monitoring 130 20 enable disable remote failure indication 131 12
- Enable disable link monitoring 131 20 0 enable disable remote mib variable obtaining 131 20 1 enable disable remote loopback 131 20 2 enable stop remote loopback 132 20 3 configure handling remote loopback querying packet 132 12
- Chapter 1 accessing switch 13
- Command line configuration mode 13
- Command line interface 13
- Command syntax comprehension 15
- Syntax help 15
- History command 16
- Symbols in command 16
- Add user 17
- Command parameter categories 17
- System default user name 17
- User management 17
- Modify password 18
- Modify privilege 18
- Remote authentication of administrator 19
- Remove user name 19
- Start radius tacacs remote authentication 19
- View system user information 19
- Display authentication configuration 20
- Manage switch by hyper terminal 20
- Show tacacs 20
- Tacacs remote server configuration 20
- Ways of managing switch 20
- Manage switch by telnet 21
- Chapter 2 port configuration 22
- Enable disable specified interface 22
- Enter interface configuration mode 22
- Port configuration 22
- Port configuration introduction 22
- Port related configuration 22
- Configure interface duplex mode and speed rate 23
- Configure port control mode 23
- Interface prioruty configuration 23
- Enable disable vlan filtration of receiving packet of interface 24
- Ingress egress bandwidth control configuration 24
- Interface description configuration 24
- Interface ingress acceptable frame configuration 24
- Enable disable interface flow control 25
- Port mode configuration 25
- The default vlan id of port configuration 25
- Add port to specified vlan 26
- Display clear interface statistics information 26
- Display interface information 26
- Brief introduction of interface mirror 27
- Interface mirror 27
- Interface mirror configuration 27
- Brief introduction of port convergence 28
- Port lacp convergent configuration 28
- Interface convergent configuration 29
- Brief introduction of interface car 31
- Interface car configuration 31
- Configure the reopen time of the port shutdown by port car 32
- Enable disable interface car on a port 32
- Enable disable interface globally 32
- Port car configuration command list 32
- Brief introduction of port alarm configuration 33
- Configure the port car rate 33
- Display port car information 33
- Enable disable port alarm globally 33
- Port alarm configuration 33
- Port alarm configuration list 33
- Configure the exceed threshold and normal threshold of port alarm 34
- Display port alarm 34
- Enable disable port alarm on the port 34
- Brief introduction of shutdown control 35
- Configure shutdown control open time 35
- Display shutdown control 35
- Interface shutdown control configuration 35
- Interface shutdown control configuration list 35
- Shutdown control configuration 35
- Recover shutdown control 36
- Brief introduction of vlan 37
- Chapter 3 vlan configuration 37
- Default vlan 37
- Vlan configuration 37
- Vlan configuration list 37
- Vlan interface type 37
- Add delete vlan interface 38
- Create delete vlan 38
- Configure interface default vlan id 39
- Configure interface type 39
- Configure tag vlan 39
- Specify restore vlan description 39
- Brief introduction of gvrp 40
- Display vlan information 40
- Gvrp configuration 40
- Gvrp configuration list 40
- Add delete vlan that can be dynamic learnt by gvrp 41
- Display gvrp 41
- Enable disable global gvrp 41
- Enable disable gvrp on a port 41
- Brief introduction of qinq 42
- Configure global qinq 42
- Configure qinq mode of interface 42
- Display vlan that can be learnt by gvrp 42
- Examples for gvrp configuration 42
- Qinq configuration 42
- Qinq configuration list 42
- Brief introduction of l2 tunnel 43
- Configure cancel l2 tunnel drop threshold 43
- Enable disable l2 tunnel 43
- L2 tunnel 43
- L2 tunnel configuration list 43
- Show port l2 tunnel status 43
- Brief introduction of vprb 44
- Configure delete vprb port backup 44
- Show l2 tunnel drop threshold 44
- Vprb configuration list 44
- Show vprb 45
- Arp configuration 46
- Arp configuration list 46
- Brief introduction of arp 46
- Chapter 4 arp configuration 46
- Delete arp table item 46
- Display arp table item 46
- Brief introduction of gmrp 47
- Chapter 5 multicast protocol 47
- Chapter 5 multicast protocol configuration 47
- Configuration 47
- Enable disable global gmrp 47
- Enable disable gmrp on a port 47
- Gmrp configuration 47
- Gmrp configuration list 47
- Add delete multicast that can be dynamic learnt by gmrp 48
- Brief introduction of igmp snooping 48
- Display gmrp 48
- Display multicast that can be learnt by gmrp 48
- Igmp snooping configuration 48
- Igmp snooping configuration 49
- Igmp snooping interface fast leave configuration 49
- Igmp snooping max response time configuration 49
- Igmp snooping multicast interface aging time configuration 49
- Configure the number of the multicast group allowed learning 50
- Enable disable igmp snooping querier 50
- Igmp snooping permit deny group configuration 50
- Igmp snooping route port forward configuration 50
- Configure igmp snooping querier vlan 51
- Configure igmp snooping query interval 51
- Configure igmp snooping query max response 51
- Configure igmp snooping query source ip 51
- Add igmp snooping route port 52
- Configure igmp snooping multicast vlan 52
- Configure igmp snooping route port aging 52
- Enable disable igmp snooping preview 52
- Display igmp snooping multicast preview 53
- Igmp snooping multicast preview group configuration 53
- Igmp snooping preview parameter 53
- Igmp snooping profile 54
- Igmp snooping profile configuration 54
- Igmp snooping drop query 55
- Igmp snooping profile refer configuration 55
- Igmp snooping record host 55
- Show igmp snooping profile 55
- Brief introduction of static multicast 56
- Igmp snooping drop report 56
- Show igmp snooping record host 56
- Show multicast interface 56
- Static multicast configuration 56
- Brief introduction of cross vlan multicast 58
- Cross vlan multicast configuration 58
- Brief introduction of dhcp 59
- Chapter 6 dhcp configuration 59
- Configre dhcp servers for each vlan 59
- Dhcp configuration 59
- Dhcp configuration list 59
- Enable dhcp relay 59
- Configure ip source guard 60
- Configure max host number 60
- Configure trust ports 60
- Dhcp snooping 60
- Enable dhcp snooping 60
- Dhcp sooping configuraton of vlans can be displayed by this command show dhcp snooping configuration of vlans 61
- Dhcp sooping of ports configuraton can be displayed by this command show dhcp snooping configuration of ports 61
- Show clients information of ip address mac address and port number show information of clients 61
- Show dhcp snooping clients 61
- Show dhcp snooping configuration of ports 61
- Show dhcp snooping configuration of vlans 61
- Show dhcp snooping interface interface num 61
- Show dhcp snooping vlan 61
- Show information of clients 61
- Acl support 62
- Brief introduction of acl 62
- Chapter 7 acl configuration 62
- Introduction of acl 62
- Matching order configuration 62
- Acl configuration 63
- Configuration list 63
- Configure time range 63
- Define acl 64
- Activate acl 69
- Monitor and maintanence of acl 69
- Brief introduction of qos 70
- Chapter 8 qos configuration 70
- Priority configuration 72
- Qos configuration 72
- Qos configuration list 72
- Flow mirror configuration 73
- Queue scheduler configuration 73
- The cos map relationship of hardware priority queue and priority of ieee802 p protocol 73
- Flow statistic configuration 74
- Traffic insert vlan configuration 74
- Traffic rewrite vlan configuration 74
- Brief introduction of port isolation 75
- Monitor and maintenance of qos 75
- Port isolation 75
- Brief introduction of strom control 76
- Port isolation configuration 76
- Strom control 76
- Strom control configuration 76
- Brief introduction of stp configuration 78
- Chapter 9 stp configuration 78
- Enable disable stp 78
- Stp configuration 78
- Stp configuration list 78
- Configure stp priority 79
- Configure switch forward delay 79
- Enable disable interface stp 79
- Configure hello time 80
- Configure max age 80
- Configure path cost of specified interfaces 80
- Configure interface to force to send rstp packet 81
- Configure link type of specified interface 81
- Configure spanning tree root guard 81
- Configure stp priority od specified port 81
- Configure the current port as an edge port 82
- Configure the speed limit of sending bpdu of specified interface 82
- Stp monitor and maintainenance 82
- Brief introduction of mstp 83
- Enable disable stp remote loop detect 83
- Configure mstp configuration mark 84
- Configure mstp timer parameter 84
- Mstp configuration 84
- Mstp configuration list 84
- Configure mstp interface edge interface status 85
- Configure mstp interface link type 85
- Configure mstp interface path cost 85
- Configure mstp netbridge priority 85
- Configure mstp interface priority 86
- Configure spanning tree mst root guard 86
- Display mstp configuration information 86
- Configure ignore of vlan 87
- Enable disable digest snooping 87
- 802 x configuration 88
- Aaa configuration mode 88
- Brief introduction of 802 x configuration 88
- Chapter 10 802 x configuration 88
- Chapter 10 802 x configuration command 88
- Command 88
- Radius server configuration 88
- Domain configuration 90
- 802 x configuration 92
- Brief introduction of sntp protocol 94
- Chapter 11 sntp client configuration 94
- Enable disable sntp client 94
- Sntp client configuration 94
- Sntp client working mode configuration 94
- Sntp client broadcast delay configuration 95
- Sntp client multicast ttl configuration 95
- Sntp client poll interval configuration 95
- Sntp client unicast server configuration 95
- Sntp client md5 authentication configuration 96
- Sntp client retransmit configuration 96
- Sntp client valid server configuration 96
- Brief introduction of syslog 97
- Chapter 12 syslog configiration 97
- Syslog configiration 97
- Enable disable syslog 98
- Syslog sequence number configuration 98
- Syslog terminal outputting configuration 98
- Syslog time stamps configuration 98
- Syslog flash storage outputting configuration 99
- Syslog logging buffered outputting configuration 99
- Syslog logging host outputting configuration 100
- Module debug configuration 101
- Syslog snmp agent outputting configuration 101
- Brief introduction of ssh 102
- Chapter 13 ssh configuration 102
- Enable disable ssh function of the device 102
- Ssh configuration 102
- Ssh key configuration 102
- Others 103
- Chapter 14 switch manage and 104
- Chapter 14 switch manage and maintenance 104
- Configuration files management 104
- Display saved configuration 104
- Edit configuration files 104
- Erase configuration 104
- Execute saved configuration 104
- Maintenance 104
- Modify and save current configuration 104
- Configure file executing mode shift 105
- Display current configuration 105
- Online loading upgrade program 105
- Upload and download files by tftp 105
- Upload and download files by ftp 106
- Download files by xmodem 107
- Facility management 107
- Mac address table management 107
- Basic configuration and management 110
- Reboot 110
- System maintenance 110
- Use show command to check system information 110
- Loopback test command 111
- Network connecting test command 111
- Administration ip address restriction 112
- The number of telnet user restriction 112
- Brief introduction of snmp 113
- Cpu car command 113
- Monitor system by snmp 113
- Routing tracert command 113
- Configuration 114
- Configure and manage vlan 119
- System ip configuration 119
- Configuration ip address by manual operation 120
- Display ip address 120
- Examples for ip address configuration 120
- Brief introduction of cpu alarm 121
- Cpu alarm configuration 121
- Cpu alarm configuration list 121
- Enable disable cpu alarm 121
- Enable disable dlf forword packet 121
- Anti dos attack 122
- Configure cpu busy or unbusy threshold 122
- Display cpu alarm information 122
- Ip segment anti attack 122
- Brief introduction of lldp protocol 123
- Chapter 15 lldp configuration 123
- Configure lldp hello time 123
- Enable disable global lldp 123
- Lldp configuration 123
- Lldp configuration list 123
- Configure lldp hold time 124
- Display lldp information 124
- Interface lldp packet receiving sending mode configuration 124
- Neighbor 1 ttl 119 s chassis id 00 1f ce 10 26 66 port id port 7 system name qtech system description qtech port description e0 7 port duplex auto port speed full 100 port link aggregation support in aggregation aggregated port id is 7 125
- Brief introduction of errp 126
- Chapter 16 errp command configuration 126
- Configure errp timer 126
- Errp configuration 126
- Errp configuration list 126
- Configure control vlan of errp domain 127
- Configure errp domain working mode 127
- Enter errp configuration mode 127
- Create errp ring 128
- Enable disable errp ring 128
- 0 errp query solicitation 129
- Display errp domain and ring information 129
- Brief introduction of pppoe plus 130
- Chapter 17 pppoe plus configuration 130
- Configure pppoe plus type 130
- Enable disable pppoe plus 130
- Pppoe plus configuration 130
- Pppoe plus configuration list 130
- Brief introduction of cfm 131
- Cfm configuration 131
- Cfm configuration list 131
- Chapter 18 cfm configuration 131
- Configure md parameter 131
- Create delete md 131
- Configure ma parameter 132
- Create delete ma 132
- Create delete mep 133
- Create delete mip 133
- Create delete rmep 133
- 0 linktrace 134
- Loopback 134
- 1 show md 135
- 2 show ma 135
- 3 show mp mep mip rmep 135
- 4 show clear ccm statistics 135
- 5 show clear ccm database 136
- 6 show cfm error 136
- Brief introduction of flex links 137
- Chapter 19 flex links configuration 137
- Configure flex links preemption mode 137
- Enable or disable flex links of interface or convergent interface 137
- Flex links configuration 137
- Flex links configuration list 137
- Configure flex links preemption mode delay 138
- Configure macmoveupdate of flex links 138
- Disaply flex links information 138
- Chapter 20 efm configuration 140
- Configure efm working mode 140
- Efm configuration 140
- Efm configuration list 140
- Efm overview 140
- Enable disable efm 140
- Configure efm pdu timeout 141
- Configure link timeout 141
- Configure response timeout 141
- Configure link monitoring 142
- 0 enable disable remote mib variable obtaining 143
- 1 enable disable remote loopback 143
- Enable disable link monitoring 143
- Enable disable remote failure indication 143
- 2 enable stop remote loopback 144
- 3 configure handling remote loopback querying packet 144
- 4 show efm status 144
- 5 show efm info 145
- 6 show efm discovery 145
- 7 show clear efm statistics 145
- 8 show remote mib 146
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