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Link Layer Discovery Protocol

12-12

Web – Click LLDP, Device Statistics.

Figure 12-9 LLDP Device Statistics

CLI – This example displays LLDP statistics received from all LLDP-enabled remote

devices connected directly to this switch.

switch#show lldp info statistics 32-18

LLDP Device Statistics

Neighbor Entries List Last Updated : 2450279 seconds

New Neighbor Entries Count : 1

Neighbor Entries Deleted Count : 0

Neighbor Entries Dropped Count : 0

Neighbor Entries Ageout Count : 0

Interface | NumFramesRecvd NumFramesSent NumFramesDiscarded

--------- + -------------- ------------- ------------------

Eth 1/1 | 10 11 0

Eth 1/2 | 0 0 0

Eth 1/3 | 0 0 0

Eth 1/4 | 0 0 0

Eth 1/5 | 0 0 0

Main Page

Default Chapter5
- About this Guide5
- Related Publications5
- Revision History5
- Table of Contents7
Section I: Getting Started33
Chapter 1: Introduction35
- Key Features35
- Table 1-1 Key Features35
- Description of Software Features36
- System Defaults41
- Table 1-2 System Defaults41
Chapter 2: Initial Configuration45
- Connecting to the Switch45
- Stack Operations47
- Basic Configuration50
- Managing System Files59
  - Saving Configuration Settings60
Section II: Switch Management63
Chapter 3: Configuring the Switch65
- Using the Web Interface65
- Navigating the Web Browser Interface66
Chapter 4: Basic Management Tasks77
- Displaying System Information77
- Figure 4-1 System Information78
- Displaying Switch Hardware/Software Versions79
- Figure 4-2 Switch Information79
- Displaying Bridge Extension Capabilities80
- Setting the Switch's IP Address (IP Version 4)81
- Setting the Switch's IP Address (IP Version 6)85
- Configuring Support for Jumbo Frames97
- Managing Firmware97
- Saving or Restoring Configuration Settings100
- Console Port Settings102
- Figure 4-16 Configuring the Console Port103
- Telnet Settings104
- Figure 4-17 Configuring the Telnet Interface105
- Configuring Event Logging106
- Renumbering the Stack111
- Resetting the System112
- Setting the System Clock112
Chapter 5: Simple Network Management Protocol119
- Enabling the SNMP Agent120
- Table 5-1 Snmpv3 Security Models and Levels120
- Figure 5-1 Enabling the SNMP Agent120
- Setting Community Access Strings121
- Figure 5-2 Configuring SNMP Community Strings121
- Specifying Trap Managers and Trap Types122
- Figure 5-3 Configuring SNMP Trap Managers124
- Configuring Snmpv3 Management Access125
Chapter 6: User Authentication137
- Configuring User Accounts137
- Configuring Local/Remote Logon Authentication138
- Figure 6-1 User Accounts138
- Figure 6-2 Authentication Server Settings140
- Configuring HTTPS141
- Configuring the Secure Shell144
- Configuring Port Security152
- Figure 6-8 Port Security153
- Configuring 802.1X Port Authentication154
- Filtering IP Addresses for Management Access162
- Figure 6-13 IP Filter163
Chapter 7: Access Control Lists165
- Configuring Access Control Lists165
- Binding a Port to an Access Control List175
- Figure 7-7 ACL Port Binding175
Chapter 8: Port Configuration177
- Displaying Connection Status177
- Figure 8-1 Port - Port Information177
- Configuring Interface Connections179
- Figure180
- Figure 8-2 Port - Port Configuration181
- Creating Trunk Groups182
- Setting Broadcast Storm Thresholds193
- Figure 8-9 Port Broadcast Control194
- Configuring Port Mirroring195
- Figure 8-10 Mirror Port Configuration195
- Configuring Rate Limits196
- Figure 8-11 Rate Limit Configuration197
- Showing Port Statistics198
- Table 8-4 Port Statistics198
- Figure 8-12 Port Statistics201
Chapter 9: Address Table Settings203
- Setting Static Addresses203
- Displaying the Address Table204
- Figure 9-1 Static Addresses204
- Figure 9-2 Dynamic Addresses205
- Changing the Aging Time206
- Figure 9-3 Address Aging206
Chapter 10: Spanning Tree Algorithm207
- Figure208
- Displaying Global Settings209
- Figure 10-1 STA Information210
- Configuring Global Settings212
- Figure213
- Figure 10-2 STA Global Configuration215
- Displaying Interface Settings216
- Figure 10-3 STA Port Information218
- Configuring Interface Settings219
- Table 10-4 Recommended STA Path Cost Range220
- Table 10-5 Default STA Path Costs220
- Figure 10-6 STA Port Configuration221
- Configuring Multiple Spanning Trees222
- Figure 10-7 MSTP VLAN Configuration223
- Displaying Interface Settings for MSTP225
- Figure 10-8 MSTP Port Information225
- Configuring Interface Settings for MSTP226
- Figure 10-11 MSTP Port Configuration227
- Table 10-10 Default STA Path Costs227
- Table 10-9 Recommended STA Path Cost Range227
Chapter 11: VLAN Configuration229
- IEEE 802.1Q Vlans229
- Configuring IEEE 802.1Q Tunneling240
- Configuring Private Vlans246
- Configuring Protocol-Based Vlans248
Chapter 12: Link Layer Discovery Protocol251
- Setting Basic LLDP Timing Attributes251
- Figure 12-4 LLDP Configuration252
- Configuring LLDP Interface Attributes253
- Figure 12-5 LLDP Port Configuration254
- Displaying LLDP Local Device Information255
- Figure 12-6 LLDP Local Device Information257
- Displaying LLDP Remote Port Information258
- Figure 12-7 LLDP Remote Port Information258
- Displaying LLDP Remote Information Details259
- Figure 12-8 LLDP Remote Information Details260
- Displaying Device Statistics261
- Figure 12-9 LLDP Device Statistics262
- Displaying Detailed Device Statistics263
- Figure 12-10 LLDP Device Statistics Details263
Chapter 13: Class of Service265
- Layer 2 Queue Settings265
- Layer 3/4 Priority Settings271
Chapter 14: Quality of Service277
- Configuring Quality of Service Parameters277
Chapter 15: Multicast Filtering285
- Layer 2 IGMP (Snooping and Query)286
Chapter 16: Domain Name Service295
- Configuring General DNS Service Parameters295
- Figure 16-1 DNS General Configuration296
- Configuring Static DNS Host to Address Entries297
- Figure 16-2 DNS Static Host Table298
- Displaying the DNS Cache299
- Figure 16-3 DNS Cache299
Chapter 17: Dynamic Host Configuration Protocol301
- Configuring DHCP Relay Service301
- Configuring the DHCP Server302
Chapter 18: Configuring Router Redundancy311
- Virtual Router Redundancy Protocol312
- Configuring Router Redundancy312
Chapter 19: IP Routing321
- Overview321
  - Initial Configuration321
- IP Switching322
  - Routing Path Management323
  - Routing Protocols324
- Basic IP Interface Configuration324
- Configuring IP Routing Interfaces325
- Figure 19-1 IP Global Settings325
- Figure 19-2 IP Routing Interface327
- Address Resolution Protocol328
- Displaying Statistics for IP Protocols336
- Configuring Static Routes341
- Displaying the Routing Table342
- Figure 19-12 IP Static Routes342
- Figure 19-13 IP Routing Table343
Chapter 20: Unicast Routing345
- Configuring the Routing Information Protocol346
- Configuring the Open Shortest Path First Protocol358
Section III:command Line Interface387
Chapter 21: Overview of the Command Line Interface389
- Using the Command Line Interface389
- Entering Commands391
- Command Groups398
- Table 21-4 Command Group Index398
Chapter 22: General Commands401
- Enable401
- Table 22-1 General Commands401
- Default Setting401
- Disable402
- Configure402
- Related Commands403
- Show History403
- Reload404
- Prompt404
- End404
- Exit405
- Quit405
Chapter 23: System Management Commands407
- Device Designation Commands407
- System Status Commands409
- Frame Size Commands415
  - Jumbo Frame415
  - Table 23-4 Frame Size Commands415
- File Management Commands416
- Line Commands423
- Event Logging Commands432
- SMTP Alert Commands438
- Time Commands441
Chapter 24: SNMP Commands451
- Table 24-1 SNMP Commands451
Chapter 25: User Authentication Commands467
- User Account Commands467
- Authentication Sequence470
- RADIUS Client472
- TACACS+ Client475
- Web Server Commands477
- Telnet Server Commands480
  - Ip Telnet Server480
  - Table 25-9 Telnet Server Commands480
- Secure Shell Commands481
- Port Security Commands490
  - Table 25-12 Port Security Commands490
  - Port Security491
- 802.1X Port Authentication492
- Management IP Filter Commands501
Chapter 26: Access Control List Commands503
- Ipv4 Acls503
- Ipv6 Acls509
- MAC Acls514
- ACL Information518
Chapter 27: Interface Commands521
- Interface521
- Table 27-1 Interface Commands521
- Description522
- Speed-Duplex523
- Negotiation524
- Capabilities524
- Flowcontrol525
- Media-Type526
- Shutdown527
- Switchport Broadcast Packet-Rate527
- Clear Counters528
- Show Interfaces Status529
- Show Interfaces Counters530
- Show Interfaces Switchport531
- Table 27-2 Show Interfaces Switchport - Display Description531
Chapter 28: Link Aggregation Commands533
- Table 28-1 Link Aggregation Commands533
Chapter 29: Mirror Port Commands543
- Port Monitor543
- Table 29-1 Mirror Port Commands543
- Show Port Monitor544
Chapter 30: Rate Limit Commands545
- Rate-Limit545
- Table 30-1 Rate Limit Commands545
Chapter 31: Address Table Commands547
- Mac-Address-Table Static547
- Table 31-1 Address Table Commands547
- Clear Mac-Address-Table Dynamic548
- Show Mac-Address-Table549
- Mac-Address-Table Aging-Time550
- Show Mac-Address-Table Aging-Time550
Chapter 32: LLDP Commands551
- Lldp552
- Lldp Holdtime-Multiplier553
- Lldp Notification-Interval553
- Lldp Refresh-Interval554
- Lldp Reinit-Delay555
- Lldp Tx-Delay555
- Lldp Admin-Status556
- Lldp Notification556
- Lldp Basic-Tlv Management-Ip-Address557
- Lldp Basic-Tlv Port-Description558
- Lldp Basic-Tlv System-Capabilities558
- Lldp Basic-Tlv System-Description559
- Lldp Basic-Tlv System-Name559
- Lldp Dot1-Tlv Proto-Ident560
- Lldp Dot1-Tlv Proto-VID560
- Lldp Dot1-Tlv Pvid561
- Lldp Dot1-Tlv Vlan-Name561
- Lldp Dot3-Tlv Mac-Phy562
- Lldp Dot3-Tlv Link-Agg562
- Lldp Dot3-Tlv Max-Frame563
- Lldp Dot3-Tlv Poe563
- Show Lldp Config564
- Show Lldp Info Local-Device565
- Show Lldp Info Remote-Device566
- Show Lldp Info Statistics568
Chapter 33: Spanning Tree Commands569
- Table 33-1 Spanning Tree Commands569
Chapter 34: VLAN Commands589
- GVRP and Bridge Extension Commands589
- Editing VLAN Groups593
- Configuring VLAN Interfaces595
- Displaying VLAN Information600
  - Table 34-5 Commands for Displaying VLAN Information600
  - Show Vlan601
- Configuring IEEE 802.1Q Tunneling602
- Configuring Private Vlans606
- Configuring Protocol-Based Vlans608
Chapter 35: Class of Service Commands613
- Priority Commands (Layer 2)613
- Priority Commands (Layer 3 and 4)619
Chapter 36: Quality of Service Commands627
- Table 36-1 Quality of Service Commands627
Chapter 37: Multicast Filtering Commands637
- IGMP Snooping Commands637
- IGMP Query Commands641
- Static Multicast Routing Commands645
Chapter 38: Domain Name Service Commands647
- Ip Host647
- Table 38-1 DNS Commands647
- Clear Host648
- Ip Domain-Name649
- Ip Domain-List649
- Ip Name-Server650
- Ip Domain-Lookup651
- Show Hosts652
- Show Dns653
- Show Dns Cache653
- Table 38-2 Show Dns Cache - Display Description653
- Clear Dns Cache654
Chapter 39: DHCP Commands655
- DHCP Client655
- DHCP Relay657
- DHCP Server659
Chapter 40: Router Redundancy Commands671
- Virtual Router Redundancy Protocol Commands671
Chapter 41: IP Interface Commands681
- Basic IP Configuration681
- Address Resolution Protocol (ARP)712
Chapter 42: IP Routing Commands717
- Global Routing Configuration717
- Routing Information Protocol (RIP)721
- Open Shortest Path First (OSPF)734
Appendix A: Software Specifications771
- Software Features771
- Management Features772
- Standards772
- Management Information Bases773
Appendix B: Troubleshooting775
- Problems Accessing the Management Interface775
- Table B-1 Troubleshooting Chart775
  - Using System Logs776
Glossary777
Index785

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