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20 Ethernet1/0/3 ALTE DISCARDING NONE

30 Ethernet1/0/1 ROOT FORWARDING NONE

30 Ethernet1/0/2 ALTE DISCARDING NONE

40 Ethernet1/0/3 ROOT FORWARDING NONE

Based on the output, you can draw the spanning tree mapped to each VLAN, as shown

in Figure 27.

Figure 27

Spanning trees mapped to different VLANs

Default Chapter1
- Configuration Guide1
- Table of Contents3
Configuring Ethernet Interfaces10
- Ethernet Interface Naming Conventions10
- Configuring a Combo Interface10
  - Configuration Prerequisites10
  - Changing the Active Port of a Combo Interface10
- Configuring Basic Settings of an Ethernet Interface10
- Shutting down an Ethernet Interface11
- Setting Speed Options for Auto Negotiation on an Ethernet Interface12
  - Configuration Restrictions and Guidelines12
  - Configuration Procedure13
- Configuring Flow Control on an Ethernet Interface13
- Configuring Link State Change Suppression on an Ethernet Interface14
  - Configuring Link-Down Event Suppression14
  - Configuring Link-Up Event Suppression15
- Configuring Loopback Testing on an Ethernet Interface15
  - Configuration Restrictions and Guidelines15
  - Configuration Procedure15
- Configuring Jumbo Frame Support16
- Configuring a Port Group16
- Configuring Storm Suppression17
- Setting the Statistics Polling Interval17
- Enabling Loopback Detection on an Ethernet Interface18
  - Configuration Restrictions and Guidelines19
  - Configuration Procedure19
- Setting the MDI Mode of an Ethernet Interface20
- Testing the Cable Connection of an Ethernet Interface21
- Configuring Storm Control on an Ethernet Interface21
  - Configuration Restrictions and Guidelines22
  - Configuration Procedure22
- Displaying and Maintaining an Ethernet Interface23
Configuring Loopback and Null Interfaces24
- Configuring a Loopback Interface24
  - Introduction to the Loopback Interface24
  - Configuration Procedure24
- Configuring a Null Interface25
  - Introduction to the Null Interface25
  - Configuration Procedure25
- Displaying and Maintaining Loopback and Null Interfaces25
Bulk Configuring Interfaces27
- Configuration Guidelines27
- Configuration Procedure27
Configuring the MAC Address Table28
- Overview28
- Configuring Static, Dynamic, and Blackhole MAC Address Table Entries29
- Disabling MAC Address Learning30
  - Disabling MAC Address Learning on Ports30
  - Disabling MAC Address Learning on a VLAN (Available Only on the HPE 3100 V2 EI)31
- Configuring the Aging Timer for Dynamic MAC Address Entries31
- Configuring the MAC Learning Limit on Ports32
- Enabling MAC Address Migration Log Notifying32
- Displaying and Maintaining MAC Address Tables33
- MAC Address Table Configuration Example33
  - Network Requirements33
  - Configuration Procedure34
Configuring MAC Information35
- Overview35
  - Introduction to MAC Information35
  - How MAC Information Works35
- Enabling MAC Information Globally35
- Enabling MAC Information on an Interface35
- Configuring MAC Information Mode36
- Configuring the Interval for Sending Syslog or Trap Messages36
- Configuring the MAC Information Queue Length36
- MAC Information Configuration Example37
  - Network Requirements37
  - Configuration Procedure37
Configuring Ethernet Link Aggregation38
- Overview38
- Configuration Restrictions and Guidelines44
- Ethernet Link Aggregation Configuration Task List44
- Configuring an Aggregation Group44
- Configuring an Aggregate Interface47
- Configuring Load Sharing for Link Aggregation Groups49
  - Configuring Load-Sharing Criteria for Link Aggregation Groups49
- Displaying and Maintaining Ethernet Link Aggregation49
- Ethernet Link Aggregation Configuration Examples50
  - Layer 2 Static Aggregation Configuration Example50
  - Layer 2 Dynamic Aggregation Configuration Example52
Configuring Port Isolation55
- Assigning a Port to the Isolation Group55
- Displaying and Maintaining the Isolation Group55
- Port Isolation Configuration Example55
Configuring Spanning Tree Protocols57
- Stp57
  - STP Protocol Packets57
  - Basic Concepts in STP58
  - Calculation Process of the STP Algorithm59
- Rstp64
- Pvst64
- Mstp64
  - STP, RSTP, and PVST Limitations64
  - MSTP Features64
  - MSTP Basic Concepts65
  - How MSTP Works69
  - Implementation of MSTP on Devices69
- Protocols and Standards69
- Spanning Tree Configuration Task List70
  - Configuration Restrictions and Guidelines70
  - STP Configuration Task List70
  - RSTP Configuration Task List71
  - PVST Configuration Task List72
  - MSTP Configuration Task List73
- Setting the Spanning Tree Mode74
- Configuring an MST Region74
  - Configuration Restrictions and Guidelines75
  - Configuration Procedure75
- Configuring the Root Bridge or a Secondary Root Bridge75
  - Configuration Restrictions and Guidelines76
  - Configuring the Current Device as the Root Bridge of a Specific Spanning Tree76
  - Configuring the Current Device as a Secondary Root Bridge of a Specific Spanning Tree76
- Configuring the Device Priority77
- Configuring the Maximum Hops of an MST Region77
- Configuring the Network Diameter of a Switched Network78
- Configuring Spanning Tree Timers78
  - Configuration Restrictions and Guidelines79
  - Configuration Procedure79
- Configuring the Timeout Factor79
- Configuring the Maximum Port Rate80
- Configuring Edge Ports80
  - Configuration Restrictions and Guidelines81
  - Configuration Procedure81
- Configuring Path Costs of Ports81
  - Specifying a Standard for the Device to Use When It Calculates the Default Path Cost81
  - Configuring Path Costs of Ports83
  - Configuration Example83
- Configuring the Port Priority84
- Configuring the Port Link Type84
  - Configuration Restrictions and Guidelines84
  - Configuration Procedure85
- Configuring the Mode a Port Uses to Recognize/Send MSTP Packets85
- Enabling Outputting Port State Transition Information86
- Enabling the Spanning Tree Feature86
  - Configuration Restrictions and Guidelines86
  - Enabling the Spanning Tree Feature (in STP/RSTP/MSTP Mode)87
  - Enabling the Spanning Tree Feature (in PVST Mode)87
- Performing Mcheck88
  - Performing Mcheck Globally88
  - Performing Mcheck in Interface View88
- Configuring Digest Snooping88
  - Configuration Restrictions and Guidelines89
  - Configuration Procedure89
  - Digest Snooping Configuration Example89
- Configuring no Agreement Check90
  - Configuration Prerequisites91
  - Configuration Procedure91
  - No Agreement Check Configuration Example92
- Configuring TC Snooping92
  - Configuration Restrictions and Guidelines93
  - Configuration Procedure93
- Configuring Protection Functions93
  - Configuration Prerequisites94
  - Enabling BPDU Guard94
  - Enabling Root Guard95
  - Enabling Loop Guard96
  - Enabling TC-BPDU Guard96
  - Enabling BPDU Drop97
- Disabling the Device to Reactivate Edge Ports Shut down by BPDU Guard97
- Enabling SNMP Notifications for PVST Topology Changes98
- Displaying and Maintaining the Spanning Tree98
- Spanning Tree Configuration Examples99
  - MSTP Configuration Example99
  - PVST Configuration Example102
Configuring BPDU Tunneling (Available Only on the HPE 3100 V2 EI)106
- Overview106
  - Background106
  - BPDU Tunneling Implementation107
- Enabling BPDU Tunneling108
- Configuring Destination Multicast MAC Address for Bpdus109
- BPDU Tunneling Configuration Examples109
  - BPDU Tunneling for STP Configuration Example109
  - BPDU Tunneling for PVST Configuration Example111
Configuring Vlans113
- Overview113
- Configuring Basic VLAN Settings115
  - Configuration Restrictions and Guidelines115
  - Configuration Procedure115
- Configuring Basic Settings of a VLAN Interface115
  - Configuration Procedure116
- Configuring Port-Based Vlans116
- Configuring MAC-Based Vlans123
- Configuring Protocol-Based Vlans (Available Only on the HPE 3100 V2 EI)127
- Displaying and Maintaining Vlans131
Configuring a Voice VLAN (Available Only on the HPE 3100 V2 EI)132
- Overview132
- Methods of Identifying IP Phones132
  - Identifying IP Phones through OUI Addresses132
- Automatically Identifying IP Phones through LLDP133
- Advertising the Voice VLAN Information to IP Phones133
- IP Phone Access Methods134
  - Connecting the Host and the IP Phone in Series134
  - Connecting the IP Phone to the Device134
- Configuring a Voice VLAN on a Port134
  - Voice VLAN Assignment Modes134
  - Security Mode and Normal Mode of Voice Vlans136
- Configuration Prerequisites137
- Configuring Qos Priority Settings for Voice Traffic on an Interface137
- Configuring a Port to Operate in Automatic Voice VLAN Assignment Mode138
  - Configuration Restrictions and Guidelines138
  - Configuration Procedure138
- Configuring a Port to Operate in Manual Voice VLAN Assignment Mode139
  - Configuration Restrictions and Guidelines139
  - Configuration Procedure139
- Enabling LLDP to Automatically Discover IP Phones140
- Configuring LLDP to Advertise a Specific Voice VLAN141
- Dynamically Advertising Server-Assigned Vlans through LLDP142
  - Overview142
  - Example of Using 802.1X to Authenticate IP Phones142
- Displaying and Maintaining Voice Vlans142
- Voice VLAN Configuration Examples143
  - Automatic Voice VLAN Mode Configuration Example143
  - Manual Voice VLAN Assignment Mode Configuration Example145
Configuring GVRP147
- Overview147
- GVRP Configuration Task List150
- Configuring GVRP Functions150
  - Configuration Restrictions and Guidelines151
  - Configuration Procedure151
- Configuring the GARP Timers151
- Displaying and Maintaining GVRP152
- GVRP Configuration Examples153
Configuring Qinq158
- Overview158
- Qinq Configuration Task List161
- Enabling Basic Qinq162
- Configuring Selective Qinq (Available Only on the HPE 3100 V2 EI)162
  - Configuring an Outer VLAN Tagging Policy in the Port-Based Approach162
  - Configuring an Outer VLAN Tagging Policy in the Qos Policy-Based Approach163
- Configuring the TPID Value in VLAN Tags164
- Qinq Configuration Examples164
Configuring VLAN Mapping (Available Only on the HPE 3100 V2 EI)172
- Overview172
- Configuring One-To-One VLAN Mapping with a Global Qos Policy175
- Configuring One-To-One VLAN Mapping with Port Qos Policies177
- Configuring Many-To-One VLAN Mapping179
- VLAN Mapping Configuration Examples180
  - One-To-One VLAN Mapping Configuration Example180
  - Many-To-One VLAN Mapping Configuration Example182
Configuring LLDP185
- Overview185
- LLDP Configuration Task List190
- Performing Basic LLDP Configuration190
- Configuring CDP Compatibility (Available Only on the HPE 3100 V2 EI)194
  - Configuration Prerequisites195
  - Configuration Procedure195
- Configuring LLDP Trapping196
- Displaying and Maintaining LLDP196
- LLDP Configuration Examples197
Configuring MVRP202
- Overview202
- MVRP Configuration Task List205
- Configuration Prerequisites205
- Enabling MVRP205
  - Configuration Restrictions and Guidelines205
  - Configuration Procedure205
- Configuring the MVRP Registration Mode206
- Configuring MRP Timers206
- Enabling GVRP Compatibility207
  - Configuration Restrictions and Guidelines208
  - Configuration Procedure208
- Displaying and Maintaining MVRP208
- Configuration Example for MVRP in Normal Registration Mode208
  - Network Requirements208
  - Configuration Procedure209
Document Conventions and Icons218
- Conventions218
- Network Topology Icons219
Support and Other Resources220
- Accessing Hewlett Packard Enterprise Support220
- Accessing Updates220
Index223

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HP 3100 Series Specifications

General

Layer	Layer 2
Jumbo Frame Support	Yes
Switching Capacity	8.8 Gbps
MAC Address Table Size	8000 entries
Management	Web interface, SNMP, CLI
Operating Temperature	0 to 45°C (32 to 113°F)
Operating Humidity	10% to 90% non-condensing
Dimensions	44(H) x 440(W) x 173(D) mm