Black Box LEV2525A User Manual (English)

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Default Chapter7
- Table of Contents7
1 Getting Started12
- Getting Started with Switch Configuration12
- Software Upgrade12
- Recommended Minimal Configuration12
- Using the Console Setup Screen12
- To Recover from a Lost Manager Password13
2 Console Management Interface14
- Understanding Management Interfaces14
- Console Port Connection14
- Advantages of Using the CLI15
- CLI Usage15
3 Using the Command Line Interface (Cli)16
- Accessing the CLI16
- Using the CLI16
- Privilege Levels at Logon16
  - Operator Privileges17
  - Manager Privileges17
- User Management17
- CLI Commands17
- Listing Commands and Command Options18
4 Web Interface21
- Overview21
- General Features21
- Session with the Switch22
- User Management23
  - To Set the Passwords23
- Status Reporting Features24
5 Configuring Ip Addressing, Interface Access, and System Information28
- Overview28
- IP Configuration28
- Dhcp/Bootp Operation28
- A Quick Start30
- Interface Access: Console/Serial Link, Telnet Features30
  - Serial Port (Console)31
  - Telnet31
- Listing the Current System Information31
- Configure the Date and Time32
- CLI: Configuration Commands33
- Web: Configuring IP Addressing34
- How IP Addressing Affects Switch Operation34
6 Security Features35
- Manager and Operator Passwords35
- Console Access Interface and the CLI35
  - Manager35
  - Operator35
- To Use Password Security35
- CLI: Setting Manager and Operator Passwords35
  - Configuring Manager and Operator Passwords35
- Access Levels35
- Configuring and Monitoring Port Security35
- CLI: Port Security Command Options and Operation36
- Reading Intrusion Alerts and Resetting Alert Flags38
  - Notice of Security Violations38
  - How the Intrusion Log Operates38
- Web: Viewing and Configuring Port Security39
- SSL (Secure Sockets Layer)39
7 Using Authorized Ip Managers to Protect against Unauthorized Access43
- Authorized IP Manager Features43
- Access Levels43
  - Authorizing Single Stations43
  - Authorizing Multiple Stations43
- Overview of IP Mask Operation43
- CLI: Viewing and Configuring Authorized IP Managers44
- Building IP Masks44
  - Configuring One Station Per Authorized Manager IP Entry45
  - Configuring Multiple Stations Per Authorized Manager IP45
- Operating and Troubleshooting Notes46
- Web: Viewing and Configuring Global Access Information46
  - Web: Viewing and Configuring System Information46
8 Snmp: Configuration for Network Management Applications47
- Overview47
- SNMP V1, V2 and V347
- Bitview and Hubview47
- SNMP Management Features48
- Configuring for SNMP Access to the Switch48
- CLI: Viewing and Configuring Community Names49
  - Listing Community Names49
- Configuring Community Names and Values49
- Using the CLI to List Current SNMP Trap Receivers50
- SNMP Version 3 (Snmpv3)50
- Rmon58
  - Adding RMON Communities in the Switch58
- Web: Viewing and Configuring SNMP Parameters58
9 Monitoring and Analyzing Switch Operation59
- Overview59
- Port Monitoring (Mirroring) Features59
  - CLI: Configuring Port Monitoring59
- Limitation60
- Web: Viewing Port Monitor Status60
10 Optimizing Port Usage61
- Overview61
- CLI: Viewing Port Status and Configuring Port Parameters61
- Web: Viewing Port Status and Configuring Port Parameters64
- Broadcast Storm Protection64
11 Qos (Quality of Service)66
- Overview66
- Qos Concepts66
- IP Precedence: Differentiated Qos66
- Diffserv66
- PQ: Priority Queuing67
- Qos Management67
- Qos on Ethernet68
- Cli68
  - To Set the Qos Type on the Switch68
  - Functions of Qos Settings68
- To Tag Untagged Packets70
- Web: Configure Qos71
12 Igmp71
- Overview71
- Purpose72
- IGMP Operating Features72
- Benefit72
- How IGMP Operates73
- IGMP Data73
- Role of the Switch73
- IP Multicast Filters75
- Reserved Addresses Excluded from IP Multicast (IGMP) Filtering75
- IGMP Support75
- Cli75
- Setting the Host Membership Query Interval77
- Setting the Query Response Interval78
- Configure IGMP Port Mode78
  - 12.14.1 Showing Port Configuration78
- Web: Configure and View79
13 Spanning Tree Protocol (Stp)80
- STP Features80
- Feature Default80
- Viewing the Current STP Configuration80
  - Explaining Parameters in Detail81
  - Showing STP Configuration by Port81
- Enabling or Disabling STP82
- Reconfiguring General STP Operation on the Switch83
- Globally Enabling or Disabling STP83
- Changing STP Bridge Parameter Values85
- Changing STP Port Parameter Values86
- How STP Operates86
- Web: View and Configure STP Parameters86
14 Rapid Spanning Tree Protocol (Rstp)87
- How Spanning Tree Operates87
- RSTP Concepts87
- Spanning Tree Options: RSTP (802.1W) and STP (802.1D)88
  - RSTP (802.1W)88
  - Stp (802.1D)88
- Transitioning from STP to RSTP88
- Configuring Rapid Reconfiguration Spanning Tree (RSTP)88
  - Optimizing the RSTP Configuration88
- Cli89
  - Main Context Commands89
  - RSTP Context Commands89
- Reconfiguring Per-Port Spanning Tree Values91
  - Per-Port RSTP Parameters Parameter Default Description91
15 Port-Based Virtual Lans (Static Vlans)93
- General Use and Operation93
- VLAN Support and the Default VLAN93
- General Steps for Using Vlans93
- CLI: Configuring VLAN Parameters94
- Creating a New Static VLAN95
  - Changing the VLAN Context Level95
- Effect of Vlans on Other Switch Features96
  - VLAN Restrictions96
- Web: Viewing and Configuring VLAN Parameters96
  - To Configure Static VLAN Port Parameters96
16 Tag Based Vlan97
- Introduction97
- VLAN Tagging Information98
- Rules of Tag Vlan Operation99
  - Ingress Rules99
  - Egress Rules99
- Cli100
- New CLI101
- Web: View and Configure Tag-Vlan Parameters102
17 Gvrp103
- GVRP (GARP VLAN Registration Protocol)103
- General Operation104
- Per-Port Options for Handling GVRP "Unknown Vlans106
- Per-Port Options for Dynamic VLAN Advertising and Joining106
  - Enabling a Static VLAN for Dynamic Joins106
  - Parameters for Controlling VLAN Propagation Behavior106
- GVRP and VLAN Access Control107
- Port-Leave from a Dynamic VLAN107
- Planning for GVRP Operation108
- Configuring GVRP on a Switch108
- Enabling and Disabling GVRP on the Switch108
- Displaying the Static and Dynamic Vlans Active on the Switch109
- GVRP Operating Notes109
- Web: View and Configure GVRP Parameters110
- 18 Link-Loss Learn Feature111
  - Cli111
  - Web: View and Configure Link Loss Learn111
19 Alarm Relay System112
- Cli112
- Web: View and Configure Alarms113
20 Smtp (Simple Mail Transfer Protocol)114
- Email Alert Features114
- Cli114
- Web: View and Configure SMTP Relay116
21 Port Based Network Access Control117
- Introduction117
- Overview117
- Protocol Operation118
- Cli119
- Web: View and Configure 802.1X127
22 Tacacs+ (Terminal Access Controller Access Control System)128
- Introduction128
- History128
- Overview128
- Le2425A / Lev2525A Tacacs128
- Packet Encryption131
- Cli131
- Web: View and Configure 802.1X132
23 Troubleshooting133
- Overview133
- Troubleshooting Approaches133
- Console Access Problems133
- Unusual Network Activity133
- General Problems134
  - Duplicate IP Addresses134
  - SNTP or Gateway Problems134
- Using the Event Log to Identify Problem Sources134
- Web: Viewing the Event Log137
  - Events Severity (Color Scheme)137
- Diagnostic Tools137
  - Ping Test137
  - CLI: Ping Test138
- CLI Administrative and Troubleshooting Commands138
- Daylight Savings Time on LE2425A and LEV2525A Switches139
- List of Valid Country Codes to Set Daylight Settings139
Appendix B139
- How to Upgrade139
Appendix A139
- Upgrade over the Network142
- Boot Code Upgrade142

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Black Box LEV2525A Specifications

General

Product Type	Managed Switch
Jumbo Frame Support	9KB
Humidity	10% to 90% non-condensing
Power Input	100-240 VAC, 50-60 Hz
Operating Temperature	0°C to 50°C
Dimensions	440 x 210 x 44 mm
Mounting	Rackmount
Storage Temperature	-40°C to 70°C

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