TP-LINK TL-SL2210 Specifications Page 81
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Global configuration Procedure for Spanning Tree function:
Step Operation Description
1 Make clear roles the switches
play in spanning tree
instances: root bridge or
designated bridge
Preparation.
2 Globally configure MSTP
parameters
Required. Enable Spanning Tree function on the switch
and configure MSTP parameters on Spanning
Tree→STP Config→STP Config page.
3 Configure MSTP parameters
for ports
Required. Configure MSTP parameters for ports on
Spanning Tree→Port Config→Port Config page.
4 Configure the MST region Required. Create MST region and configure the role the
switch plays in the MST region on Spanning
Tree→MSTP Instance→Region Config and Instance
Config page.
5 Configure MSTP parameters
for instance ports
Optional. Configure different instances in the MST region
and configure MSTP parameters for instance ports on
Spanning Tree→MSTP Instance→Instance Port
Config page.
7.4 STP Security
Configuring protection function for devices can prevent devices from any malicious attack against
STP features. The STP Security function can be implemented on Port Protect and TC Protect
pages.
Port Protect function is to prevent the devices from any malicious attack against STP features.
7.4.1 Port Protect
On this page you can configure loop protect feature, root protect feature, TC protect feature,
BPDU protect feature and BPDU filter feature for ports. You are suggested to enable
corresponding protection feature for the qualified ports.
Loop Protect
In a stable network, a switch maintains the states of ports by receiving and processing BPDU
packets from the upstream switch. However, when link congestions or link failures occurred to the
network, a down stream switch does not receive BPDU packets for certain period, which results in
spanning trees being regenerated and roles of ports being reselected, and causes the blocked
ports to transit to forwarding state. Therefore, loops may be incurred in the network.
The loop protect function can suppresses loops. With this function enabled, a port, regardless of
the role it plays in instances, is always set to blocking state, when the port does not receive BPDU
packets from the upstream switch and spanning trees are regenerated, and thereby loops can be
prevented.
Root Protect
A CIST and its secondary root bridges are usually located in the high-bandwidth core region.
Wrong configuration or malicious attacks may result in configuration BPDU packets with higher
priorities being received by the legal root bridge, which causes the current legal root bridge to lose
its position and network topology jitter to occur. In this case, flows that should travel along
74
- Smart Switch 1
- COPYRIGHT & TRADEMARKS 2
- FCC STATEMENT 2
- CE Mark Warning 2
- Safety Information 3
- Package Contents 8
- Chapter 1 About this Guide 9
- Chapter 2 Introduction 12
- 2.3.2 Rear Panel 14
- 3.1 Login 16
- 3.2 Configuration 16
- Chapter 4 System 18
- Port Info 19
- Bandwidth Utilization 19
- 4.1.2 Device Description 20
- 4.1.3 System Time 20
- 4.1.4 Daylight Saving Time 21
- 4.1.5 System IP 23
- 4.2 User Management 24
- User Info 25
- User Table 25
- 4.3 System Tools 26
- 4.3.3 Firmware Upgrade 27
- 4.4 Access Security 28
- 4.4.2 SSL Config 30
- 4.4.3 SSH Config 31
- Figure 4-17 SSH Config 32
- Network Requirements 33
- Chapter 5 Switching 37
- 5.1.2 Port Mirror 38
- Mirror Group List 39
- Mirror Group 39
- Mirroring Port 39
- 5.1.3 Port Security 40
- Figure 5-4 Port Security 41
- 5.1.4 Port Isolation 42
- 5.1.5 Loopback Detection 43
- 5.2 LAG 44
- 5.2.1 LAG Table 45
- 5.2.2 Static LAG 46
- 5.2.3 LACP Config 47
- Figure 5-10 LACP Config 48
- 5.3 Traffic Monitor 49
- 5.3.2 Traffic Statistics 50
- Auto Refresh 51
- Statistics 51
- 5.4 MAC Address 52
- 5.4.1 Address Table 53
- 5.4.2 Static Address 54
- 5.4.3 Dynamic Address 55
- Figure 5-15 Dynamic Address 56
- 5.4.4 Filtering Address 57
- 5.5 DHCP Filtering 58
- DHCP Cheating Attack 60
- Figure 5-20 DHCP Filtering 61
- Chapter 6 VLAN 62
- 6.1 802.1Q VLAN 63
- 6.1.1 VLAN Config 64
- VLAN Create 65
- VLAN Table 65
- VLAN Membership 65
- Configure Switch B 67
- Chapter 7 Spanning Tree 68
- STP Timers 69
- STP Generation 69
- In the beginning 69
- Comparing BPDUs 70
- Selecting the root bridge 70
- MSTP 72
- Port States 72
- Port Roles 72
- 7.1 STP Config 73
- Global Config 74
- Parameters Config 74
- 7.2 Port Config 75
- Port Config 76
- 7.3 MSTP Instance 77
- 7.3.2 Instance Config 78
- 7.3.3 Instance Port Config 79
- 7.4 STP Security 81
- TC Protect 82
- BPDU Protect 82
- BPDU Filter 82
- Port Protect 83
- 7.4.2 TC Protect 84
- Configure Switch A: 85
- Configure Switch B: 85
- Configure Switch C: 86
- Configure Switch D: 86
- Chapter 8 Multicast 88
- Multicast Address 89
- Multicast Address Table 89
- 8.1 IGMP Snooping 90
- 8.1.1 Snooping Config 91
- 8.1.2 Port Config 92
- 8.1.3 VLAN Config 93
- VLAN Config 94
- 8.1.4 Multicast VLAN 95
- Configuration procedure: 96
- 8.2 Multicast IP 98
- 8.2.2 Static Multicast IP 99
- 8.3 Multicast Filter 100
- 8.3.1 IP-Range 101
- 8.3.2 Port Filter 101
- Port Filter Config 102
- 8.4 Packet Statistics 103
- Chapter 9 QoS 105
- Figure 9-2 802.1Q frame 106
- Figure 9-3 IP datagram 106
- Figure 9-4 SP-Mode 107
- Figure 9-5 WRR-Mode 107
- 9.1 DiffServ 108
- 9.1.2 802.1P/CoS Mapping 109
- 9.1.3 DSCP Priority 110
- 9.1.4 Schedule Mode 111
- 9.2 Bandwidth Control 112
- Figure 9-10 Rate Limit 113
- 9.2.2 Storm Control 114
- 9.3 Voice VLAN 115
- Port Voice VLAN Mode 116
- 9.3.1 Global Config 117
- 9.3.2 Port Config 117
- 9.3.3 OUI Config 118
- Create OUI 119
- OUI Table 119
- Chapter 10 ACL 121
- 10.1.3 MAC ACL 122
- 10.1.4 Standard-IP ACL 123
- 10.1.5 Extend-IP ACL 123
- 10.2 Policy Config 124
- 10.2.1 Policy Summary 125
- 10.2.2 Policy Create 125
- 10.3 Policy Binding 126
- 10.3.2 Port Binding 127
- 10.3.3 VLAN Binding 127
- Configuration Procedure: 128
- Configuration Procedure 129
- Chapter 11 SNMP 131
- MIB Introduction 132
- 11.1 SNMP Config 133
- 11.1.2 SNMP View 134
- 11.1.3 SNMP Group 134
- Group Config 135
- 11.1.4 SNMP User 136
- 11.1.5 SNMP Community 137
- Community Config 138
- Community Table 138
- 11.2 Notification 140
- 11.3 RMON 141
- 11.3.1 History Control 142
- 11.3.2 Event Config 143
- 11.3.3 Alarm Config 143
- Alarm Table 144
- Chapter 12 Maintenance 146
- 12.2 Log 147
- 12.2.1 Log Table 148
- 12.2.2 Local Log 149
- 12.2.3 Remote Log 149
- 12.2.4 Backup Log 150
- 12.3 Device Diagnostics 151
- 12.4 Network Diagnostics 152
- 12.4.2 Tracert 153
- Tracert Config 154
- Appendix A: Specifications 155
- Figure B-1 156
- Appendix C: Glossary 158
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