Name: Hewlett Packard Enterprise Aruba 2920
Brand: Hewlett Packard Enterprise
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Aruba 2920 Management and

Configuration Guide for ArubaOS-

Switch 16.05

Part Number: 5200-4205a

Published: April 2018

Edition: 2

Default Chapter3
- Table of Contents3
Chapter 1 About this Guide24
- Applicable Products24
- Switch Prompts Used in this Guide24
Chapter 2 Time Protocols25
- General Steps for Running a Time Protocol on the Switch25
- Selecting a Time Synchronization Protocol26
- Disabling Time Synchronization27
- SNTP: Selecting and Configuring27
- Timep: Selecting and Configuring43
  - Viewing, Enabling, and Modifying the Timep Protocol (Menu)44
  - Viewing the Current Timep Configuration (CLI)45
    - Configuring (Enabling or Disabling) the Timep Mode46
- SNTP Unicast Time Polling with Multiple SNTP Servers49
  - Displaying All SNTP Server Addresses Configured on the Switch (CLI)50
  - Adding and Deleting SNTP Server Addresses50
    - Adding Addresses50
    - Deleting Addresses50
- Operating with Multiple SNTP Server Addresses Configured (Menu)51
- SNTP Messages in the Event Log51
- Network Time Protocol (NTP)51
  - Commands51
- Monitoring Resources65
Chapter 3 Port Status and Configuration69
- Viewing Port Status and Configuring Port Parameters69
- Using Friendly (Optional) Port Names87
- Uni-Directional Link Detection (UDLD)91
  - Configuring UDLD92
  - Viewing UDLD Information (CLI)94
- Uplink Failure Detection96
Chapter 4 Power over Ethernet (Poe/Poe+) Operation101
- Introduction to Poe101
  - Poe Terminology101
- Planning and Implementing a Poe Configuration101
- Poe Operation102
- Configuring Poe Operation104
- Poe/Poe+ Allocation Using LLDP Information109
  - LLDP with Poe109
    - Enabling or Disabling Ports for Allocating Power Using LLDP110
    - Enabling Poe Detection Via LLDP TLV Advertisement110
  - LLDP with Poe110
- Viewing the Global Poe Power Status of the Switch113
  - Viewing Poe Status on All Ports114
  - Viewing the Poe Status on Specific Ports116
- Using the HPE 2920 Switch with an External Power Supply118
- Poe Event Log Messages137
Chapter 5 Port Trunking138
- Overview of Port Trunking138
  - Port Connections and Configuration138
- Port Trunk Features and Operation139
  - Fault Tolerance139
- Trunk Configuration Methods139
  - Dynamic LACP Trunk139
    - Using Keys to Control Dynamic LACP Trunk Configuration140
  - Static Trunk140
- Viewing and Configuring a Static Trunk Group (Menu)144
- Viewing and Configuring Port Trunk Groups (CLI)146
- Viewing Existing Port Trunk Groups (Webagent)150
- Trunk Group Operation Using LACP150
  - Default Port Operation152
  - LACP Notes and Restrictions153
- Trunk Group Operation Using the "Trunk" Option156
- How the Switch Lists Trunk Data156
- Outbound Traffic Distribution Across Trunked Links157
- Trunk Load Balancing Using Port Layers158
  - Enabling Trunk Load Balancing159
Chapter 6 Port Traffic Controls161
- Rate-Limiting161
  - All Traffic Rate-Limiting161
- ICMP Rate-Limiting165
- Configuring Egress Per-Queue Rate-Limiting (2920 and 5400R Switches Only)173
- Rate-Limiting Unknown Unicast Traffic179
- Guaranteed Minimum Bandwidth (GMB)182
  - GMB Operation182
  - GMB Operating Notes187
    - Impact of Qos Queue Configuration on GMB Commands187
- Jumbo Frames187
Chapter 7 Fault-Finder Port-Level Link-Flap194
- Overview194
- Fault-Finder Link-Flap194
- Show Fault-Finder Link-Flap196
- Event Log197
- Restrictions197
Chapter 8 Configuring for Network Management Applications198
- Using SNMP Tools to Manage the Switch198
- Configuring UDLD Verify before Forwarding227
- Lldp229
- Dhcpv4 Server272
- LLDP Management TLV Transmission Disablement286
Chapter 9 Captive Portal for Clearpass289
- Requirements289
- Best Practices290
- Limitations290
- Features290
  - High Availability290
  - Load Balancing and Redundancy290
- Captive Portal When Disabled291
  - Disabling Captive Portal291
- Configuring Captive Portal on CPPM291
- Configuring the Switch294
  - Configure the URL Key295
- Configuring a Certificate for Captive Portal Usage295
- Display Captive Portal Configuration295
- Show Certificate Information296
- Troubleshooting296
Chapter 10 Zero Touch Provisioning with Airwave and Central300
- Zero Touch Provisioning300
- ZTP with Airwave300
- Ipsec for Airwave Connectivity318
- ZTP with Aruba Central324
Chapter 11 Auto Configuration Upon Aruba AP Detection331
- Auto Device Detection and Configuration331
- Rogue AP Isolation335
- Troubleshooting340
- Dynamic Configuration Not Displayed When Using "Show Running-Config340
Chapter 12 Device Profile for Custom Device Types344
- Procedure for Creating a Device Identity and Associating a Device Type344
Chapter 13 Dynamically Detecting LLDP Device Profiles345
- Device-Profile345
- Device-Profile Type-Device345
- Device-Profile Device-Type Enable346
- Associating a Profile with a Device347
  - Device-Profile Device-Type Associate347
- Show Device-Profile Status347
- Show Device-Profile Config348
- Show Device-Identity349
Chapter 14 LACP-MAD351
- LACP-MAD Commands351
- LACP-MAD Overview351
Chapter 15 Scalability IP Address VLAN and Routing Maximum Values353
Chapter 16 Static IP Visibility355
- IP Client-Tracker355
Chapter 17 File Transfers358
- Overview358
- Downloading Switch Software358
- Copying Software Images376
- Transferring Switch Configurations377
- Transferring ACL Command Files381
  - TFTP: Uploading an ACL Command File from a TFTP Server (CLI)381
  - Xmodem: Uploading an ACL Command File from a Serially Connected PC or UNIX Workstation (CLI)382
- Single Copy Command383
- USB: Uploading an ACL Command File from a USB Device (CLI)388
- Copying Diagnostic Data to a Remote Host, USB Device, PC or UNIX Workstation389
- Flight Data Recorder (FDR)392
Chapter 18 Monitoring and Analyzing Switch Operation393
- Overview393
- Accessing Port and Trunk Group Statistics393
- MAC Address Tables395
  - MAC Address Views and Searches395
  - Show Spanning-Tree400
- IP IGMP Status401
  - Show Ip Igmp401
- VLAN Information403
- Show Vlan403
- Configuring a Source Switch in a Local Mirroring Session404
- Selecting All Traffic on a Port Interface for Mirroring According to Traffic Direction405
- Viewing All Mirroring Sessions Configured on the Switch406
- Viewing the Mirroring Configuration for a Specific Session407
- Using the Menu to Configure Local Mirroring408
  - Menu and Webagent Limits408
- High-Level Overview of the Mirror Configuration Process408
  - Determine the Mirroring Session and Destination408
    - For a Local Mirroring Session408
    - Configure the Monitored Traffic in a Mirror Session408
- Classifier-Based Mirroring Configuration408
  - Classifier-Based Mirroring Restrictions410
  - Mirroring Configuration Examples411
- Maximum Supported Frame Size412
  - Enabling Jumbo Frames to Increase the Mirroring Path MTU412
- Effect of Downstream VLAN Tagging on Untagged, Mirrored Traffic413
  - Operating Notes for Traffic Mirroring414
- Troubleshooting Traffic Mirroring416
- Interface Monitoring Features416
  - Configuring Port and Static Trunk Monitoring (Menu)416
  - Configuring Port and Static Trunk Monitoring (CLI)417
Chapter 19 Fans420
- Show System420
- Show System Fans421
- Show System Power-Supply423
- Fan Failures and SNMP Traps427
Chapter 20 Troubleshooting428
- Overview428
- Troubleshooting Approaches428
- Browser or Telnet Access Problems429
  - Cannot Access the Webagent429
  - Cannot Telnet into the Switch Console from a Station on the Network429
- Unusual Network Activity430
- Viewing Transceiver Information450
- Using the Event Log for Troubleshooting Switch Problems458
- Debug/Syslog Operation475
- Diagnostic Tools498
- Viewing Switch Configuration and Operation504
- Restoring the Factory-Default Configuration513
  - Resetting to the Factory-Default Configuration513
    - Using the CLI513
    - Using Clear/Reset513
- Restoring a Flash Image514
  - Recovering from an Empty or Corrupted Flash State514
- DNS Resolver516
- Locating a Switch (Locator LED)521
Chapter 21 Job Scheduler522
- Job Scheduler522
- Commands522
Chapter 22 Configuration Backup and Restore Without Reboot525
- Overview525
  - Benefits of Configuration Restore Without Reboot525
- Recommended Scenarios525
- Use Cases525
  - Switching to a New Configuration526
  - Rolling Back to a Stable Configuration Using Job Scheduler527
- Commands Used in Switch Configuration Restore Without Reboot528
- Configuration Backup528
  - Cfg-Backup529
  - Show Config Files529
- Configuration Restore Without Reboot531
- Show Commands to Show the SHA of a Configuration545
  - Show Hash545
- Scenarios that Block the Configuration Restoration Process546
- Limitations546
  - Blocking of Configuration from Other Sessions546
- Troubleshooting and Support547
  - Debug Cfg-Restore547
Chapter 23 Virtual Technician548
- Cisco Discovery Protocol (CDP)548
  - Show Cdp Traffic548
  - Clear Cdp Counters548
- Enable/Disable Debug Tracing for MOCANA Code549
  - Debug Security549
- User Diagnostic Crash Via Front Panel Security (FPS) Button549
- User Initiated Diagnostic Crash Via the Serial Console555
Chapter 24 IP Service Level Agreement557
- Overview557
- How IP SLA Works559
- Configuration Commands559
- Show Commands564
- Clear Ip-Sla Responder Statistics571
- Validation Rules572
- Event Log Messages574
- Interoperability575
- IP SLA UDP Jitter and Jitter for Voip575
Chapter 25 Easing Wired/Wireless Deployment Feature Integration579
- Overview579
- Configuration Commands579
- VXLAN Show Commands583
Chapter 26 Local User Roles586
- Overview586
- Captive-Portal Commands588
  - Overview588
  - [No] Aaa Authentication Captive-Portal Profile588
    - Validation Rules589
- Policy Commands590
- User Role Configuration592
- VLAN Range Commands596
- Applying a UDR597
  - Aaa Port-Access Local-Mac Apply User-Role597
- VXLAN Show Commands597
Chapter 27 Port Qos Trust Mode601
- Overview601
- Configuration Commands601
  - Qos Trust601
  - Qos Dscp-Map602
- Show Commands602
  - Show Qos Trust602
- Validation Rules604
Chapter 28 Tunneled Node605
- Overview605
  - Operating Notes605
  - Protocol Application Programming Interface (PAPI)606
- Configuration Commands606
- VLAN Show Commands611
- Interaction Table613
- Restrictions614
- PAPI Security615
- Preventing Double Tunneling of Aruba Access Points618
  - Preventing Double Tunneling Using Device Profile Parameter618
    - Device-Profile Name618
Chapter 29 Time Domain Reflectometry622
- Virtual Cable Testing622
- Test Cable-Diagnostics622
- Show Cable-Diagnostics625
- Clear Cable-Diagnostics625
- Limitations625
Chapter 30 Link Layer Discovery Protocol Bypass Authentication627
- Overview627
- Configuration Commands627
  - Aaa Port-Access Lldp-Bypass627
    - Validation Rules628
- Show Commands629
- Debug Log632
Chapter 31 Net-Destination and Net-Service633
- Net-Service Overview633
- Netservice [Tcp | Udp | Port]633
- Net-Destination Overview634
- Net-Destination Host |Position | Network635
- Show Net-Destination636
Chapter 32 Websites637
Chapter 33 Support and Other Resources638
- Accessing Hewlett Packard Enterprise Support638
- Accessing Updates638
- Customer Self Repair639
- Remote Support639
- Warranty Information639
- Regulatory Information640
- Documentation Feedback640
Remote Device Deployment (TR-069)641
- Introduction641
- CLI Commands646
- Event Logging651
  - System Logging651
  - Status/Control Commands652
Network Out-Of-Band Management (OOBM)654
- Concepts654
  - Example655
  - OOBM and Switch Applications656
- OOBM Configuration656
- Ipv6 Default Router Preferences660
  - Ipv6 Nd Ra Router-Preference660
- OOBM Show Commands661
- Application Server Commands664
- Application Client Commands665
Configuration Backup and Restore Without Reboot668
Glossary670

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Brand	Hewlett Packard Enterprise
Model	Aruba 2920
Category	Switch
Language	English