Enterasys C3G124-24 - Page 348

Enterasys C3G124-24

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clear spantree debug

13-36 Spanning Tree Configuration

Defaults

None.

Mode

Switch command, read-write.

Example

This example clears the Spanning Tree debug counters.

C3(su)->clear spantree debug

Table of Contents

Default Chapter7
- Table of Contents7
About this Guide37
- Using this Guide37
- Structure of this Guide37
- Related Documents39
- Conventions Used in this Guide40
- Getting Help41
Chapter 1: Introduction43
- Enterasys C3 CLI Overview43
- Switch Management Methods43
- Factory Default Settings44
- Default Settings for Basic Switch Operation44
- Default Settings for Router Operation46
- Using the Command Line Interface48
  - Starting a CLI Session48
- Enterasys C3 Startup Screen48
  - Logging in49
  - Navigating the Command Line Interface50
- Sample CLI Defaults Description50
- Performing a Keyword Lookup50
- Performing a Partial Keyword Lookup51
- Scrolling Screen Output51
- Abbreviating a Command52
- Basic Line Editing Commands52
Chapter 2 : Configuring Switches in a Stack53
- About Enterasys C3 Switch Operation in a Stack53
- Installing a New Stackable System of up to Eight Units54
- Installing Previously-Configured Systems in a Stack55
- Adding a New Unit to an Existing Stack55
- Creating a Virtual Switch Configuration55
- Considerations about Using Clear Config in a Stack56
- Issues Related to Mixed Type Stacks56
  - Feature Support56
  - Configuration56
- Stacking Configuration and Management Commands57
  - Purpose57
  - Commands57
Chapter 3: Basic Configuration67
- Quick Start Setup Commands67
- Required CLI Setup Commands67
- Setting Basic Switch Properties68
  - Purpose68
  - Commands68
- Optional CLI Setup Commands68
- Show System Output Details74
- Show Version Output Details87
- Downloading a Firmware Image93
- Reviewing and Selecting a Boot Firmware Image97
  - Purpose97
  - Commands97
    - Set Boot System97
    - Show Boot System97
- Starting and Configuring Telnet98
  - Purpose98
  - Commands99
- Managing Switch Configuration and Files100
- Clearing and Closing the CLI111
  - Purpose111
  - Commands111
    - Cls (Clear Screen)111
    - Exit112
- Resetting the Switch112
  - Purpose112
  - Commands112
- Using and Configuring Webview116
  - Purpose116
  - Commands116
- Gathering Technical Support Information119
  - Purpose119
  - Command119
    - Show Support119
- Configuring Hostprotect120
  - Purpose120
  - Commands120
Chapter 4: Activating Licensed Features123
- License Key Field Descriptions123
- Licensing Procedure in a Stack Environment123
  - Adding a New Member to a Licensed Stack124
- Clearing, Showing, and Applying Licenses124
  - Commands124
Chapter 5: Setting User Accounts and Passwords129
- User Account and Password Management129
  - Features129
  - Defaults132
- User Account and Password Parameter Defaults by Security Mode132
- Commands133
- Show System Password Output Details139
- Show System Lockout Output Details145
  - Set System Lockout146
Chapter 6: Management Authentication Notification MIB Commands149
- Show Mgmt-Auth-Notify149
- Set Mgmt-Auth-Notify150
- Clear Mgmt-Auth-Notify151
Chapter 7: Setting the Security Mode153
- About the Security Mode153
- Additional Security Feature Information154
- Commands154
Chapter 8 : Configuring System Power and Poe157
- Show Inlinepower157
- Commands157
- Set Inlinepower Threshold158
- Show Inlinepower Output Details158
- Show Port Inlinepower Output Details161
Chapter 9 : Transmit Queue Monitoring Configuration163
- Transmit Queue Monitoring Overview163
- Commands163
Chapter 10 : Discovery Protocol Configuration171
- Configuring CDP171
  - Purpose171
  - Commands171
    - Show Cdp172
- Show Cdp Output Details172
- Configuring Cisco Discovery Protocol177
  - Commands177
    - Show Ciscodp177
    - Show Ciscodp Port Info178
- Show Ciscodp Output Details178
  - Set Ciscodp Status179
  - Set Ciscodp Timer179
- Show Ciscodp Port Info Output Details179
- Configuring Link Layer Discovery Protocol and LLDP-MED183
- Show Lldp Port Local-Info Output Details189
  - Show Lldp Port Remote-Info191
  - Show Lldp Port Network-Policy192
- Show Lldp Port Remote-Info Output Display192
Chapter 11 : Port Configuration207
- Port Configuration Summary207
  - Port String Syntax Used in the CLI207
- Reviewing Port Status208
  - Purpose208
  - Commands208
- Show Port Status Output Details210
  - Clear Port Counters211
- Show Port Counters Output Details211
  - Show Port Cablestatus212
- Disabling / Enabling and Naming Ports213
  - Purpose213
  - Commands213
    - Set Port Disable213
- Show Port Cablestatus Output Details213
- Setting Speed and Duplex Mode216
  - Purpose216
  - Commands216
- Enabling / Disabling Jumbo Frame Support219
  - Purpose219
  - Commands219
- Setting Auto-Negotiation and Advertised Ability221
  - Purpose221
- Setting Flow Control227
  - Purpose227
  - Commands227
    - Set Flowcontrol227
    - Show Flowcontrol227
- Setting Port Link Traps and Link Flap Detection229
  - Purpose229
- Show Linkflap Parameters Output Details232
  - Set Linkflap Globalstate233
  - Set Linkflap Portstate233
- Show Linkflap Metrics Output Details233
- LACP Terms and Definitions251
  - Enterasys C3 Usage Considerations252
  - Commands253
    - Show Lacp253
- Show Lacp Output Details254
Chapter 12 : SNMP Configuration271
- SNMP Configuration Summary271
- Reviewing SNMP Statistics273
  - Purpose273
- SNMP Security Levels273
  - Show Snmp Counters274
  - Commands274
- Show Snmp Counters Output Details275
  - Configuring SNMP Users, Groups, and Communities277
- Show Snmp User Output Details278
- Show Snmp Group Output Details281
- Show Snmp Access Output Details286
- Show Snmp View Output Details290
- Show Snmp Targetparams Output Details293
- Show Snmp Targetaddr Output Details296
  - Clear Snmp Targetaddr298
  - Configuring SNMP Notification Parameters298
- Show Snmp Notify Output Details300
- Basic SNMP Trap Configuration306
  - Configuring the SNMP Management Interface307
  - Configuring the SNMP Engine ID309
    - Set Snmp Engineid310
    - Show Snmp Engineid310
- Show Snmp Engineid Output Details310
  - Clear Snmp Engineid311
Chapter 13: Spanning Tree Configuration313
- Spanning Tree Configuration Summary313
- Configuring Spanning Tree Bridge Parameters316
  - Show Spantree Stats318
- Show Spantree Output Details319
Chapter 14 : 802.1Q VLAN Configuration371
- VLAN Configuration Summary371
  - Port String Syntax Used in the CLI371
  - Creating a Secure Management VLAN372
- Command Set for Creating a Secure Management VLAN372
  - Viewing Vlans373
- Show Vlan Output Details374
- Show Gvrp Configuration Output Details393
Chapter 15: Policy Classification Configuration401
- Policy Classification Configuration Summary401
- Configuring Policy Profiles402
- Show Policy Profile Output Details403
  - Clear Policy Profile405
  - Configuring Classification Rules406
- Show Policy Rule Output Details408
  - Set Policy Rule410
- Valid Values for Policy Classification Rules412
Chapter 16: Port Priority Configuration439
- Port Priority Configuration Summary439
- Configuring Port Priority440
- Configuring Priority to Transmit Queue Mapping442
  - Purpose442
  - Commands442
- Configuring Quality of Service (Qos)445
  - Purpose445
  - Commands445
Chapter 17: IGMP Configuration449
- IGMP Overview449
  - About IP Multicast Group Management449
  - About Multicasting450
- Configuring IGMP at Layer 2450
- Configuring IGMP on Routing Interfaces458
Chapter 18: Network Management467
- Monitoring Network Events and Status467
  - Purpose467
  - Commands467
- Show Netstat Output Details472
  - Managing Switch Network Addresses and Routes473
  - Purpose473
- Show Arp Output Details474
- Show Mac Output Details477
- Show Nodealias Config Output Details484
  - Clear Nodealias Config485
Chapter 19: Configuring System Logging487
- About Security Audit Logging487
- Show Logging Server Output Details490
- Show Logging Application Output Details494
  - Set Logging Application495
- Mnemonic Values for Logging Applications495
Chapter 20: Configuring SNTP503
- About SNTP Authentication503
- General SNTP Commands503
  - Show Sntp504
- Show Sntp Output Details505
Chapter 21: RMON Configuration519
- RMON Monitoring Group Functions and Commands519
- Show Rmon Alarm Output Details528
- Show Rmon Event Output Details532
Chapter 22: DHCP Server Configuration543
- DHCP Overview543
- Configuring General DHCP Server Parameters545
- Configuring IP Address Pools554
  - Manual Pool Configuration Considerations554
Chapter 23: DHCP Snooping and Dynamic ARP Inspection573
- DHCP Snooping Overview573
- DHCP Snooping Commands576
- Dynamic ARP Inspection Overview587
- Dynamic ARP Inspection Commands590
Chapter 24: Preparing for Router Mode603
- Pre-Routing Configuration Tasks603
  - Example604
- Enabling Router Configuration Modes604
- Enabling the Switch for Routing604
- Router CLI Configuration Modes604
Chapter 25 : IP Configuration607
- Configuring Routing Interface Settings607
  - Purpose607
  - Commands607
- Show Ip Interface Output Details611
- Show Ip Arp Output Details619
Chapter 26: Ipv4 Basic Routing Protocol Configuration631
- Configuring RIP631
- Configuring IRDP641
  - Purpose641
  - Commands641
Chapter 27: Ipv4 Advanced Routing Protocol Configuration647
- Activating Advanced Routing Features647
- Configuring OSPF648
  - Purpose648
  - OSPF Configuration Task List and Commands648
- Show Ip Ospf Database Output Details666
  - Show Ip Ospf Interface667
- Show Ip Ospf Interface Output Details667
  - Show Ip Ospf Neighbor668
  - Show Ip Ospf Virtual-Links669
- Show Ip Ospf Neighbor Output Details669
- Show Ip Ospf Virtual Links Output Details669
  - Clear Ip Ospf Process670
  - Configuring DVMRP671
- Commands to Enable DVMRP on an Interface671
- Show Ip Pimsm Output Details687
  - Show Ip Pimsm Interface688
- Show Ip Pimsm Componenettable Output Details688
  - Show Ip Pimsm Neighbor689
- Show Ip Pimsm Interface Vlan Output Details689
- Show Ip Pimsm Interface Stats Output Details689
  - Show Ip Pimsm Rp690
- Show Ip Pimsm Neighbor Output Details690
  - Show Ip Pimsm Rphash691
- Show Ip Pimsm Rp Output Details691
  - Show Ip Pimsm Staticrp692
  - Show Ip Mroute693
- Show Ip Pimsm Staticrp Output Details693
Chapter 28: Ipv6 Management696
- Set Ipv6696
- Set Ipv6 Address697
- Show Ipv6 Address698
- Clear Ipv6 Address698
- Set Ipv6 Gateway699
- Clear Ipv6 Gateway700
- Show Ipv6 Neighbors701
- Show Ipv6 Netstat701
- Show Ipv6 Netstat Output Display702
  - Ping Ipv6703
  - Traceroute Ipv6704
Chapter 29: Ipv6 Configuration705
- Overview705
- Overview706
  - Default Conditions706
- General Configuration Commands707
- Interface Configuration Commands714
- Neighbor Cache and Neighbor Discovery Commands718
- Query Commands726
  - Show Ipv6 Interface726
  - Show Ipv6 Neighbors727
- Show Ipv6 Neighbor Output Details728
  - Show Ipv6 Route729
  - Show Ipv6 Route Preferences730
- Show Ipv6 Route Output Details730
  - Show Ipv6 Route Summary731
- Show Ipv6 Route Preferences Output Details731
  - Show Ipv6 Traffic732
- Show Ipv6 Summary Output Details732
- Show Ipv6 Traffic Output Details734
  - Clear Ipv6 Statistics737
Chapter 30: Dhcpv6 Configuration739
- Overview739
  - Default Conditions740
- Global Configuration Commands740
  - Purpose740
  - Commands740
- Address Pool Configuration Commands744
  - Purpose744
  - Commands744
- Interface Configuration Commands748
  - Purpose748
  - Commands748
    - Ipv6 Dhcp Server748
    - Ipv6 Dhcp Relay749
- Dhcpv6 Show Commands751
  - Purpose751
  - Commands751
    - Show Ipv6 Dhcp751
    - Show Ipv6 Dhcp Interface752
- Output of Show Ipv6 Dhcp Interface Command753
  - Show Ipv6 Dhcp Statistics754
- Output of Show Ipv6 Dhcp Statistics Command754
Chapter 31: Ospfv3 Configuration759
- Overview759
  - Default Conditions760
- Global Ospfv3 Configuration Commands761
  - Purpose761
  - Commands761
- Area Configuration Commands768
  - Purpose768
  - Commands768
- Interface Configuration Commands780
  - Purpose780
  - Commands780
- Ospfv3 Show Commands788
  - Purpose788
  - Commands788
    - Show Ipv6 Ospf788
- Show Ipv6 Ospf Output Details789
  - Show Ipv6 Ospf Area790
- Show Ipv6 Ospf Area Output Details790
  - Show Ipv6 Ospf Abr791
- Show Ipv6 Ospf Abr Output Details791
  - Show Ipv6 Ospf Asbr792
- Show Ipv6 Ospf Asbr Output Details792
  - Show Ipv6 Ospf Database793
- Show Ipv6 Ospf Database Output Details795
- Show Ipv6 Ospf Database Database-Summary Output Details796
  - Show Ipv6 Ospf Interface797
- Show Ipv6 Ospf Interface Command Output Details798
  - Show Ipv6 Ospf Interface Stats799
- Show Ipv6 Ospf Interface Stats Output Details800
  - Show Ipv6 Ospf Neighbor801
- Show Ipv6 Ospf Neighbor Output Details802
  - Show Ipv6 Ospf Range803
- Show Ipv6 Ospf Neighbor Routerid Output Details803
  - Show Ipv6 Ospf Stub Table804
- Show Ipv6 Ospf Range Output Details804
- Show Ipv6 Ospf Stub Table Output Details804
  - Show Ipv6 Ospf Virtual-Link805
- Show Ipv6 Ospf Virtual-Link Output Details805
Chapter 32: Authentication and Authorization Configuration807
- Overview of Authentication and Authorization Methods807
  - RADIUS Filter-ID Attribute and Dynamic Policy Profile Assignment809
- Setting the Authentication Login Method810
  - Purpose810
  - Commands810
- Configuring RADIUS812
  - Purpose812
  - Commands812
    - Show Radius812
- Show Radius Output Details813
- Show Eapol Output Details832
- Show Macauthentication Output Details836
  - Show Macauthentication Session837
- Show Macauthentication Session Output Details837
- Show Vlanauthorization Output Details862
- Show Maclock Output Details869
  - Show Maclock Stations870
- Show Maclock Stations Output Details870
- Show Pwa Output Details884
Chapter 33: Configuring Ipsec897
- About Ipsec897
  - Implementation Defaults898
- Commands898
Chapter 34: Configuring Access Control Lists903
- About Access Control Lists903
  - Ipv6 and MAC ACL Considerations903
  - Rule Actions904
- Commands904
Chapter 35: Configuring Service Access Control Lists917
- Restricting Management Access to the Console Port918
- Commands918
Chapter 36: TACACS+ Configuration923
- Show Tacacs924
- Show Tacacs Output Details924
Chapter 37: Sflow Configuration937
- Overview937
- Sflow Definitions938
- Show Sflow Receivers Output Descriptions942

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