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Configuring the Spanning Tree Protocol 737

Figure 22-9. Spanning Tree Global Settings

Table of Contents

Default Chapter1
- Series Switches1
- Table of Contents3
1 Introduction51
- About this Document51
- Audience52
- Document Conventions52
- Additional Documentation53
2 Switch Feature Overview55
- System Management Features56
- Stacking Features61
  - High Stack Count61
- Single IP Management61
- Master Failover with Transparent Transition62
- Nonstop Forwarding on the Stack62
- Hot Add/Delete and Firmware Synchronization62
- Security Features63
- Green Technology Features69
- Spanning Tree Protocol Features79
- Link Aggregation Features81
- Routing Features82
- Ipv6 Routing Features85
3 Hardware Overview91
- Dell Networking N2000 Series Switch Hardware91
4 Using Dell Openmanage Switch127
- Administrator127
5 Using the Command-Line Interface135
- Accessing the Switch through the CLI135
  - Console Connection135
  - Telnet Connection136
- Understanding Command Modes137
- Entering CLI Commands139
6 Default Settings143
7 Setting the IP Address and Other147
- Basic Network Information147
  - IP Address and Network Information Overview147
  - What Is Out-Of-Band Management and In-Band Management149
- Default Network Information151
- Configuring Basic Network Information (Web)152
- Configuring Basic Network Information (CLI)161
8 Managing QSFP Ports169
9 Managing a Switch Stack171
- Stacking Overview171
- Default Stacking Values182
- Managing and Monitoring the Stack (Web)184
10 Configuring Authentication207
- Authorization, and Accounting207
- Authorization Examples227
- Using RADIUS Servers to Control Management Access232
- Using TACACS+ Servers to Control Management Access237
  - Which TACACS+ Attributes Does the Switch Support238
- Default Configurations239
11 Monitoring and Logging System243
- Information243
- Monitoring System Information and Configuring Logging (CLI)267
- Logging Configuration Examples274
12 Managing General System Settings279
- System Settings Overview279
- Default General System Information286
- Configuring System Settings (CLI)307
- General System Settings Configuration Examples315
13 Configuring SNMP323
- SNMP Overview323
- Default SNMP Values325
- Configuring SNMP (Web)327
- Configuring SNMP (CLI)345
- SNMP Configuration Examples354
  - Configuring Snmpv1 and Snmpv2354
  - Configuring Snmpv3355
14 Managing Images and Files359
- Image and File Management Overview359
15 Automatically Updating the Image389
- And Configuration389
- Default Auto Configuration Values400
- Managing Auto Configuration (Web)401
  - Auto-Install Configuration401
- Managing Auto Configuration (CLI)402
  - Managing Auto Configuration402
- Auto Configuration Example403
16 Monitoring Switch Traffic407
- Traffic Monitoring Overview407
- Default Traffic Monitoring Values414
- Monitoring Switch Traffic (Web)414
- Monitoring Switch Traffic (CLI)439
- Traffic Monitoring Configuration Examples447
17 Configuring Iscsi Optimization459
- Iscsi Optimization Overview459
- Default Iscsi Optimization Values466
- Configuring Iscsi Optimization (Web)467
- Configuring Iscsi Optimization (CLI)471
- Iscsi Optimization Configuration Examples473
  - Configuring Iscsi Optimization between Servers and a Disk Array473
18 Configuring Port Characteristics477
- Port Overview477
19 Configuring Port and System503
- Security503
  - Port-Based Security-IEEE 802.1X and Port MAC Locking503
    - Ieee 802.1X504
  - Port Security (Port-MAC Locking)539
- Captive Portal543
- Authentication Manager578
- Denial of Service582
20 Configuring Access Control Lists583
- ACL Overview583
- ACL Configuration Details591
- Policy Based Routing594
- Configuring Acls (Web)599
- Configuring Acls (CLI)612
- ACL Configuration Examples628
21 Configuring Vlans645
- VLAN Overview645
- Default VLAN Behavior661
- Configuring Vlans (Web)663
- Configuring Vlans (CLI)682
- VLAN Configuration Examples698
22 Configuring the Spanning Tree Protocol715
- STP Overview715
- Rstp-Pv724
- Default STP Values735
- Configuring Spanning Tree (Web)736
- Configuring Spanning Tree (CLI)746
- STP Configuration Examples751
23 Discovering Network Devices761
- Device Discovery Overview761
- Default IDSP and LLDP Values763
- Configuring ISDP and LLDP (Web)765
- Configuring ISDP and LLDP (CLI)777
- Device Discovery Configuration Examples782
  - Configuring ISDP782
  - Configuring LLDP782
24 Configuring Port-Based Traffic Control787
- Port-Based Traffic Control Overview787
- Default Port-Based Traffic Control Values790
- Configuring Port-Based Traffic Control (Web)791
- Configuring Port-Based Traffic Control (CLI)798
- Port-Based Traffic Control Configuration Example801
25 Configuring L2 Multicast Features803
- L2 Multicast Overview803
- Snooping Switch Restrictions812
- Default L2 Multicast Values814
- Configuring L2 Multicast Features (Web)816
- Configuring L2 Multicast Features (CLI)846
- Case Study on a Real-World Network Topology854
  - Multicast Snooping Case Study854
26 Configuring Connectivity Fault Management859
- Dot1Ag Overview859
- Default Dot1Ag Values864
- Configuring Dot1Ag (Web)865
- Configuring Dot1Ag (CLI)873
- Dot1Ag Configuration Example876
27 Snooping and Inspecting Traffic879
- Traffic Snooping and Inspection Overview879
- Default Traffic Snooping and Inspection Values885
- Configuring Traffic Snooping and Inspection (Web)887
- Configuring Traffic Snooping and Inspection (CLI)904
- Traffic Snooping and Inspection Configuration Examples910
  - Configuring DHCP Snooping910
  - Configuring IPSG912
28 Configuring Link Aggregation913
- Link Aggregation913
- Multi-Switch LAG (MLAG)932
29 Configuring Data Center Bridging Features983
- Data Center Bridging Technology Overview983
  - Default DCB Values984
- Priority Flow Control985
- DCB Capability Exchange992
- Enhanced Transmission Selection999
30 Managing the MAC Address Table1015
- MAC Address Table Overview1015
- Default MAC Address Table Values1016
- Managing the MAC Address Table (Web)1017
  - Static Address Table1017
  - Global Address Table1019
- Managing the MAC Address Table (CLI)1020
  - Managing the MAC Address Table1020
31 Configuring Routing Interfaces1021
- Routing Interface Overview1021
- Default Routing Interface Values1026
- Configuring Routing Interfaces (Web)1027
- Configuring Routing Interfaces (CLI)1033
32 Configuring DHCP Server and Relay Settings1037
- DHCP Overview1037
- Default DHCP Server Values1042
- Configuring the DHCP Server (Web)1043
- Configuring the DHCP Server (CLI)1054
- DHCP Server Configuration Examples1058
  - Configuring a Dynamic Address Pool1058
  - Configuring a Static Address Pool1060
33 Configuring IP Routing1063
- IP Routing Overview1063
- Default IP Routing Values1065
- ARP Table1066
- Configuring IP Routing Features (Web)1067
- Configuring IP Routing Features (CLI)1079
- IP Routing Configuration Example1084
  - Configuring Dell Networking Switch a1085
  - Configuring Dell Networking Switch B1086
34 Configuring L2 and L3 Relay Features1087
- L2 and L3 Relay Overview1087
- Default L2/L3 Relay Values1093
- Configuring L2 and L3 Relay Features (Web)1094
- Configuring L2 and L3 Relay Features (CLI)1105
  - Configuring L2 DHCP Relay1105
  - Configuring L3 Relay (IP Helper) Settings1107
- Relay Agent Configuration Example1109
35 Configuring OSPF and Ospfv31111
- OSPF Overview1112
- OSPF Feature Details1114
- Default OSPF Values1120
- Configuring OSPF Features (Web)1122
- Configuring Ospfv3 Features (Web)1138
- Configuring OSPF Features (CLI)1155
- Configuring Ospfv3 Features (CLI)1167
- OSPF Configuration Examples1177
36 Configuring RIP1201
- RIP Overview1201
- Default RIP Values1203
- Configuring RIP Features (Web)1204
- Configuring RIP Features (CLI)1209
- RIP Configuration Example1213
37 Configuring VRRP1217
- VRRP Overview1217
- Default VRRP Values1221
- Configuring VRRP Features (Web)1222
- Configuring VRRP Features (CLI)1230
  - Configuring VRRP Settings1230
- VRRP Configuration Example1232
38 Configuring Ipv6 Routing1241
- Ipv6 Routing Overview1241
  - How Does Ipv6 Compare with Ipv41242
  - How Are Ipv6 Interfaces Configured1242
- Default Ipv6 Routing Values1243
- Configuring Ipv6 Routing Features (Web)1245
- Configuring Ipv6 Routing Features (CLI)1256
- Ipv6 Static Reject and Discard Routes1263
39 Configuring Dhcpv6 Server and Relay Settings1265
- Dhcpv6 Overview1265
- Default Dhcpv6 Server and Relay Values1267
- Configuring the Dhcpv6 Server and Relay (Web)1268
- Configuring the Dhcpv6 Server and Relay (CLI)1277
- Dhcpv6 Configuration Examples1281
40 Configuring Differentiated Services1285
- Diffserv Overview1285
  - How Does Diffserv Functionality Vary Based on the Role of the Switch1286
  - What Are the Elements of Diffserv Configuration1286
- Default Diffserv Values1287
- Configuring Diffserv (Web)1288
- Configuring Diffserv (CLI)1300
- Diffserv Configuration Examples1307
  - Providing Subnets Equal Access to External Network1307
  - Diffserv for Voip1310
41 Configuring Class-Of-Service1313
- Cos Overview1313
- Default Cos Values1316
- Configuring Cos (Web)1318
- Configuring Cos (CLI)1324
- Cos Configuration Example1328
42 Configuring Auto Voip1331
- Auto Voip Overview1331
  - How Does Auto-Voip Use Acls1332
- Default Auto Voip Values1332
- Configuring Auto Voip (Web)1333
  - Auto Voip Global Configuration1333
  - Auto Voip Interface Configuration1333
- Configuring Auto Voip (CLI)1335
43 Managing Ipv4 and Ipv6 Multicast1337
- L3 Multicast Overview1337
- Default L3 Multicast Values1355
- Configuring General Ipv4 Multicast Features (Web)1357
- Configuring Ipv6 Multicast Features (Web)1363
  - Ipv6 Multicast Route Table1363
- Configuring IGMP and IGMP Proxy (Web)1364
- Configuring MLD and MLD Proxy (Web)1373
- Configuring PIM for Ipv4 and Ipv6 (Web)1382
- Configuring DVMRP (Web)1394
- Configuring L3 Multicast Features (CLI)1399
A Feature Limitations and Platform Constants1423
B System Process Definitions1433
Index1441

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