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148 Summit 300-48 Switch Software User Guide
Spanning Tree Protocol (STP)
Figure 16: Tag-based STP configuration
The tag-based network in Figure 16 has the following configuration:
• Switch 1 contains VLAN Marketing and VLAN Sales.
• Switch 2 contains VLAN Engineering and VLAN Sales.
• Switch 3 contains VLAN Marketing, VLAN Engineering, and VLAN Sales.
• The tagged trunk connections for three switches form a triangular loop that is not permitted in an
STP topology.
• All VLANs in each switch are members of the same STPD.
STP can block traffic between switch 1 and switch 3 by disabling the trunk ports for that connection on
each switch.
Switch 2 has no ports assigned to VLAN marketing. Therefore, if the trunk for VLAN marketing on
switches 1 and 3 is blocked, the traffic for VLAN marketing will not be able to traverse the switches.
Configuring STP on the Switch
To configure STP, follow these steps:
1 Create one or more STP domains using the following command:
create stpd <stpd_name>
NOTE
STPD, VLAN, and QoS profile names must all be unique. For example, a name used to identify a VLAN
cannot be used when you create an STPD or a QoS profile.
2 Add one or more VLANs to the STPD using the following command:
config stpd <stpd_name> add vlan <name>
LB48015
Marketing & Sales Marketing, Sales & Engineering
Switch 1
Switch 2
Sales & Engineering
Switch 3
- Summit 300-48 Switch 1
- Software User Guide 1
- Contents 3
- Chapter 3 Managing the Switch 4
- Chapter 6 Wireless Networking 5
- Chapter 8 Power Over Ethernet 6
- Chapter 10 Access Policies 7
- Chapter 14 IP Unicast Routing 8
- Appendix A Safety Information 9
- Appendix D Troubleshooting 9
- Index of Commands 10
- Ta bl es 14
- Introduction 15
- Conventions 15
- Related Publications 16
- 1 ExtremeWare Overview 17
- Unified Access 18
- Virtual LANs (VLANs) 18
- Spanning Tree Protocol 18
- Software Licensing 19
- Security Licensing 20
- Software Factory Defaults 20
- ExtremeWare Overview 22
- 2 Accessing the Switch 23
- Syntax Helper 24
- Command Shortcuts 24
- Line-Editing Keys 25
- Command History 26
- Common Commands 26
- Configuring Management Access 28
- User Account 29
- Administrator Account 29
- Default Accounts 29
- Creating a Management Account 30
- Viewing Accounts 31
- Deleting an Account 31
- Checking Basic Connectivity 32
- Accessing the Switch 34
- 3 Managing the Switch 35
- Using the Console Interface 36
- Using Telnet 36
- Managing the Switch 38
- Using Secure Shell 2 (SSH2) 39
- Using SNMP 40
- Supported MIBs 41
- Configuring SNMP Settings 41
- Displaying SNMP Settings 42
- Authenticating Users 43
- RADIUS RFC 2138 Attributes 44
- Using ExtremeWare Vista 47
- Accessing ExtremeWare Vista 48
- Navigating ExtremeWare Vista 48
- Task Frame 49
- Content Frame 49
- Saving Changes 50
- Filtering Information 50
- Configuring and Using SNTP 51
- (continued) 53
- SNTP Configuration Commands 54
- SNTP Example 54
- Configuring Ports on a Switch 55
- Switch Port Commands 56
- Load Sharing on the Switch 57
- Switch Port-Mirroring 59
- Port-Mirroring Commands 60
- Extreme Discovery Protocol 61
- 5 Virtual LANs (VLANs) 63
- Types of VLANs 64
- System 1 65
- System 2 65
- Tagged VLANs 66
- Uses of Tagged VLANs 67
- Assigning a VLAN Tag 67
- Marketing 68
- VLAN Names 69
- Renaming a VLAN 70
- VLAN Configuration Commands 70
- Displaying VLAN Settings 71
- 6 Wireless Networking 73
- Wireless Devices 74
- Bridging 75
- Managing Wireless Ports 75
- Configuring RF Properties 76
- Configuring Country Codes 78
- Configuring Wireless Ports 79
- Managing Wireless Clients 80
- Show Commands 80
- Event Logging and Reporting 81
- Wireless Networking 82
- 7 Unified Access Security 83
- User Access Security 84
- Cipher Suites 85
- WPA-Only Support 86
- Legacy and WPA 802.1x Support 86
- Network Security Policies 87
- Policy Examples 88
- Policies and RADIUS Support 88
- RADIUS Attributes 88
- Security Profile Commands 89
- Unified Access Security 90
- 8 Power Over Ethernet 95
- Port Power Management 96
- Port Power Events 97
- Per-Port LEDs 98
- Power Over Ethernet 100
- Table 37: PoE Show Commands 101
- 9 Forwarding Database (FDB) 103
- How FDB Entries Get Added 104
- Configuring FDB Entries 105
- Displaying FDB Entries 106
- 10 Access Policies 107
- Access Masks 108
- Access Lists 108
- Rate Limits 109
- How Access Control Lists Work 109
- Specifying a Default Rule 110
- Maximum Entries 111
- Access Control List Commands 112
- Using Access Control Lists 113
- Access Policies 114
- 10.10.10.1 116
- 10.10.10.100 10.10.20.100 116
- 10.10.20.1 116
- 11 Quality of Service (QoS) 121
- Applications and Types of QoS 122
- Web Browsing Applications 123
- File Server Applications 123
- Traffic Groupings 124
- MAC-Based Traffic Groupings 125
- Configuring 802.1p Priority 126
- Observing 802.1p Information 126
- 802.1p Commands 127
- Configuring DiffServ 128
- DiffServ Examples 130
- Source port 130
- QoS Monitor 131
- Modifying a QoS Configuration 132
- Traffic Rate-Limiting 132
- Status Monitoring 133
- Port Statistics 135
- Port Errors 136
- Port Monitoring Display Keys 137
- Local Logging 139
- Remote Logging 139
- Logging Configuration Changes 140
- Logging Commands 140
- About RMON 142
- RMON Features of the Switch 142
- Configuring RMON 143
- Event Actions 144
- Spanning Tree Protocol (STP) 145
- STP Configurations 146
- Sales, Personnel, Marketing 147
- Switch 1 148
- Switch 2 148
- Switch 3 148
- Configuring STP on the Switch 149
- Displaying STP Settings 151
- Disabling and Resetting STP 152
- 14 IP Unicast Routing 153
- Router Interfaces 154
- Populating the Routing Table 154
- Static Routes 155
- Multiple Routes 155
- IP Route Sharing 155
- Proxy ARP 156
- Relative Route Priorities 157
- IP Commands 158
- IP Unicast Routing 160
- Routing Configuration Example 162
- Displaying Router Settings 163
- Configuring DHCP/BOOTP Relay 164
- UDP-Forwarding 165
- UDP-Forwarding Example 166
- ICMP Packet Processing 166
- UDP-Forwarding Commands 166
- A Safety Information 169
- Power Cord 170
- Connections 170
- Lithium Battery 171
- Safety Information 172
- B Supported Standards 173
- Supported Standards 174
- Downloading a New Image 175
- Saving Configuration Changes 176
- Remember to Save 179
- Upgrading Bootloader 179
- Accessing the Bootstrap CLI 179
- Accessing the Bootloader CLI 180
- Boot Option Commands 181
- D Troubleshooting 183
- Troubleshooting 184
- Port Configuration 185
- Debug Tracing 187
- TOP Command 187
- • [email protected] 188
- Numerics 189
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