Enterasys Vertical Horizon VH-8G Programming manual

9033640
VERTICAL HORIZON
VH-8G
GIGABIT ETHERNET SWITCH
MANAGEMENT GUIDE

Notice
9033640 i
NOTICE
Enterasys Networks reserves the right to make changes in specifications and other information
contained in this document without prior notice. The reader should in all cases consult Enterasys
Networks to determine whether any such changes have been made.
The hardware, firmware, or software described in this manual is subject to change without notice.
IN NO EVENT SHALL ENTERASYS NETWORKS BE LIABLE FOR ANY INCIDENTAL,
INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT
NOT LIMITED TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR
THE INFORMATION CONTAINED IN IT, EVEN IF ENTERASYS NETWORKS HAS BEEN
ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH
DAMAGES.
2000 by Enterasys Networks, P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in Taiwan, R.O.C.
Order Number: 9033640 November 2000
Enterasys, Enterasys Networks, and Vertical Horizon are trademarks or registered trademarks of
Enterasys Networks, Inc.
Microsoft, Windows, Windows 95, Windows 98, and Windows NT are either trademarks or registered
trademarks of Microsoft Corporation.
Netscape and Netscape Navigator are trademarks of Netscape Communications Corporation.
All other product names mentioned in this manual may be trademarks or registered trademarks of
their respective companies.
Only qualified personnel should perform installation
procedures.

Notice
ii 9033640

9033640 Table of Contents iii
TABLE OF CONTENTS
1. MANAGEMENT OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Required Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Console Port (Out-of-Band) Connections . . . . . . . . . . . . . . . . . . . . 1
In-Band Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. VH-8G USER INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
User Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
System Information Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Displaying System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Displaying Switch Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Management Setup Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Changing the Network Configuration. . . . . . . . . . . . . . . . . . . . . . . 13
IP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
IP Connectivity Test (Ping) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
HTTP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Configuring the Serial Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Assigning SNMP Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Console Login Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Downloading System Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Saving the System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 23
Configuring Management Access . . . . . . . . . . . . . . . . . . . . . . . . . 24
Configuring the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Configuring Port Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Viewing the Current Port Configuration . . . . . . . . . . . . . . . . . . . . . 28
Using the Spanning Tree Algorithm. . . . . . . . . . . . . . . . . . . . . . . . 29
Viewing the Current Spanning Tree Configuration . . . . . . . . . . . . 32
Using a Mirror Port for Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Configuring Port Trunks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
IGMP Multicast Filtering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Configuring Broadcast Storm Control . . . . . . . . . . . . . . . . . . . . . . 41
Configuring Bridge MIB Extensions . . . . . . . . . . . . . . . . . . . . . . . . 42
Configuring Traffic Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Configuring Virtual LANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Multicast Router Port Information . . . . . . . . . . . . . . . . . . . . . . . . . 52
Static Multicast Router Port Configuration. . . . . . . . . . . . . . . . . . . 53
IGMP Member Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 54
Port Security Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Monitoring the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Displaying Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Displaying RMON Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Displaying the Unicast Address Table . . . . . . . . . . . . . . . . . . . . . . 60

iv Table of Contents VH-8G
Displaying the IP Multicast Registration Table . . . . . . . . . . . . . . . 61
Configuring Static Unicast Addresses. . . . . . . . . . . . . . . . . . . . . . 62
Resetting the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Logging Off the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
3. CONFIGURING & MONITORING THE SWITCH . . . . . . . . . . . . . . . . . . . . . 65
Common Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Setting Password Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Assigning an IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Checking Network Configuration Status. . . . . . . . . . . . . . . . . . . . . . . . 67
Connecting via Telnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Setting SNMP Management Access . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Viewing Switch Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Configuring Port Mirroring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Downloading a Software Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Downloading Via the Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Downloading Via TFTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Configuring Spanning Tree Parameters. . . . . . . . . . . . . . . . . . . . . . . . 72
Configuring VLANs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Configuring Class of Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Configuring Port Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Configuring the Unicast Address Table . . . . . . . . . . . . . . . . . . . . . . . . 75
Setting a Default Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Configuring BootP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Configuring Port Trunks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
4. SNMP MANAGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
The SNMP Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
MIB Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
RFC 1213 (MIB-II). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
RFC 1573 (Interfaces Evolution MIB) . . . . . . . . . . . . . . . . . . . . . . 81
RFC 1643 (Ethernet-Like MIB) . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
RFC 1493 (Bridge MIB). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
RFC 1757 (RMON MIB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
IEEE 802.1Q (Q-MIB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Enterasys Proprietary MIB Extensions . . . . . . . . . . . . . . . . . . . . . 82
Compiling MIB Extensions: Enterasys Website . . . . . . . . . . . . . . . . . . 82
APPENDIX A. SPANNING TREE CONCEPTS . . . . . . . . . . . . . . . . . . . . . . . . 83
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Spanning Tree Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Spanning Tree Protocol in a Network. . . . . . . . . . . . . . . . . . . . . . . . . . 84
Spanning Tree Protocol Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Spanning Tree Protocol Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Communicating Between Bridges. . . . . . . . . . . . . . . . . . . . . . . . . 86
Selecting a Root Bridge and Designated Bridges. . . . . . . . . . . . . 86
Selecting Designated Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Handling Duplicate Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Remapping Network Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

9033640 Table of Contents v
APPENDIX B. VIRTUAL LANS (VLANS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
VLANs and Frame Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
VH-8G VLAN Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Assigning Ports to VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Forwarding Tagged/Untagged Frames . . . . . . . . . . . . . . . . . . . . . . . . . 91
Automatic VLAN Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Forwarding Traffic with Unknown VLAN Tags . . . . . . . . . . . . . . . . 92
APPENDIX C. CLASS OF SERVICE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
APPENDIX D. IP MULTICAST FILTERING . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
IGMP Snooping and IP Multicast Filtering . . . . . . . . . . . . . . . . . . . . . . 95
INDEX

vi Table of Contents VH-8G

9033640 Management Overview 1
1. MANAGEMENT OVERVIEW
Configuration Options
For advanced management capability, the Enterasys Networks’ Vertical
Horizon VH-8G provides a menu-driven system configuration program.
This program can be accessed by a direct connection to the serial port on
the switch’s rear panel (out-of-band), or by a Telnet connection over the
network (in-band).
The switch’s management is based on SNMP (Simple Network
Management Protocol). SNMP permits a switch to be managed from any
PC in the network using in-band management software.
The switch’s internal management also includes an embedded HTTP
Web server. This Web server can be accessed using a standard Web
browser from any computer attached to the network. Refer to the VH-8G
Web Management Guide for more information.
The system configuration program and SNMP support management
functions such as:
•Enable/disable any port
•Set the communication mode for any port
•Configure SNMP parameters
•Select RMON options
•Display system information or statistics
•Configure the switch to join a Spanning Tree
•Download system firmware
•Restart the system
Required Connections
Console Port (Out-of-Band) Connections
Attach a VT100 compatible terminal or a PC running a terminal emulation
program to the serial port on the switch’s rear panel. Use the null-modem
cable provided with this package, or use a null-modem connection that is
compatible with the console port pin assignments shown in Appendix A of
the VH-8G User Guide.
When attaching to a PC, set terminal emulation type to VT100, specify the
port used by your PC (i.e., COM 1~4), and then set communications to 8
data bits, 1 stop bit, no parity, and 19200 bps (for initial configuration).
Also be sure to set flow control to “none.” (Refer to “Configuring the Serial
Port” on page 17 for a complete description of configuration options.)

2 Management Overview VH-8G
In-Band Connections
Prior to accessing the switch via a network connection, you must first
configure it with a valid IP address, subnet mask, and default gateway
using an out-of-band connection or the BootP protocol.
Telnet Connection
Prior to accessing the switch via an in-band Telnet connection, you must
first configure it with a valid IP address, subnet mask, and default gateway
using an out-of-band connection or BootP protocol. After configuring the
switch’s IP parameters, you can access the on-board configuration
program from anywhere within the attached network.
In-Band Network Connection
The on-board configuration program can be accessed using Telnet from
any computer attached to the network. The switch can also be managed
by any computer using a Web browser (Internet Explorer 4.0 or above, or
Netscape Navigator 4.0 or above), or from a network computer using
network management software.
Use the Network Configuration menu to specify the
maximum number of simultaneous Telnet sessions that
are supported by the system.

9033640 VH-8G User Interface 3
2. VH-8G USER INTERFACE
Overview
Access is gained to the console menus by directly connecting a terminal
to the console port with a null-modem cable connection, or using Telnet
to access the switch over the network. These menus allow you to
reconfigure the switch, as well as to monitor the status and performance
of the switch. The menus have a layout similar to the sample Main Menu
shown in Figure 2-1. The information is divided into the following parts:
•Menu Name (includes access privileges)
•Selectable Items
•Screen Prompt for menu selections and entry of field parameters,
and Message Area for display of parameters or error messages.
Figure 2-1. Sample Main Menu
Menu name
Selectable
Items
Screen prompt
and message
area
Vertical Horizon Local Management -- VH-8G
Main Menu
System Information Menu...
Management Setup Menu...
Device Control Menu...
Network Monitor Menu...
System Restart Menu...
Exit
Use <TAB> or arrow keys to move. <Enter> to select.

4 VH-8G User Interface VH-8G
User Access
Once a direct connection to the console port or a Telnet connection is
established, the login screen for the on-board configuration program
appears. You may need to press Enter a few times to display the screen.
The default user names are “admin” and “guest,” with no passwords. The
administrator has Read/Write access, which allows you to read and
modify switch information. The guest has Read Only access to the
management program, which allows you to view switch information, but
not modify any operating parameters.
You should define a new administrator password, record it and put it in a
safe place. From the Main Menu, select Management Setup Menu /
Console Login Configuration, and enter a new password for the
administrator. Passwords can consist of up to 11 alphanumeric
characters and are not case sensitive.
To use the console menus, do the following:
1. Use the cursor keys to highlight the desired option.
If the selected item is a submenu title, the submenu is displayed
when you press the Enter key.
2. Follow the screen prompts to specify the parameter requested.
If the selected item is a parameter, the system displays a prompt for
you to enter a new value. If the value entered is invalid, a message
displays, requesting you to enter a valid value.
A user is allowed three attempts to enter the correct
password; on the third failed attempt the current
connection is terminated.

9033640 VH-8G User Interface 5
Factory Defaults
Table 2-1 lists the default settings for switch configuration parameters.
Each parameter can be changed via the console menus or Telnet.
Table 2-1. Factory Default Settings
Parameter Default Value
Multicast Filtering
GMRP Disabled
IGMP Multicast Filtering Disabled
Port Configuration
Flow Control Disabled
Speed and Duplex Auto
Admin Enabled
Broadcast Storm Control Enabled - 500 pps
Port Priority
Default Ingress User Priority 0
Spanning Tree Algorithm
Active Aging Time 300
Bridge Priority 32768
Forward Delay 15
Hello Time 2
Max Age 20
Path Cost 4 - 1000Mbps ports
Port Priority 128
Spanning Tree Protocol Enabled
System Configuration
Management VLAN All
BootP Enable Disabled
Password <none>
Screen Timeout 10 min
Send Authentication Fail Traps Enabled
SNMP Community Name public, private
Terminal Baud Rate Auto
User Names admin, guest

6 VH-8G User Interface VH-8G
Virtual LANs
Acceptable VLAN Frame Type All
Configurable PVID Tagging Yes
GVRP Disabled
Untagged VLAN Group Assignment 1
VLAN Ingress Filtering False
VLAN Learning SVL
Parameter Default Value

9033640 VH-8G User Interface 7
Main Menu
The Main Menu is the first screen seen after successfully logging into the
system. Figure 2-2 shows the Main Menu and the accompanying table
describes the Main Menu.
Figure 2-2. Main Menu
Vertical Horizon Local Management -- VH-8G
Main Menu
System Information Menu...
Management Setup Menu...
Device Control Menu...
Network Monitor Menu...
System Restart Menu...
Exit
Use <TAB> or arrow keys to move. <Enter> to select.
Selection Description
System Information Menu
System Information Provides basic system description, including contact
information.
Switch Information Shows hardware/firmware version numbers and power
status of the switch.
Management Setup Menu
Network Configuration Includes IP setup, Ping facility, HTTP (Web server) setup,
Telnet configuration, and MAC address.
Serial Port
Configuration
Sets communication parameters for the serial port, including
management mode, baud rate, console time-out, and screen
data refresh interval.
SNMP Configuration Activates traps; and configures communities and trap
managers.
Console Login
Configuration
Sets user names and passwords for system access, as well
as the invalid password threshold and lockout time.
TFTP Download Downloads new version of firmware to update your system
(in-band).
Configuration Save &
Restore
Saves the switch configuration to a file on a TFTP server.
This file can be later downloaded to restore the configuration.
Management
Configuration
Specifies if management access to the switch is available
from all VLANs or restricted to one VLAN.

8 VH-8G User Interface VH-8G
Device Control Menu
Port Configuration Enables any port, enables/disables flow control, and sets
communication mode to auto-negotiation, full duplex or half
duplex.
Port Information Displays operational status, including link state, flow control
method, and duplex mode.
Spanning Tree
Configuration
Enables Spanning Tree Algorithm; also sets parameters for
hello time, maximum message age, switch priority, and
forward delay; as well as port priority and path cost.
Spanning Tree
Information
Displays full listing of parameters for the Spanning Tree
Algorithm.
Mirror Port
Configuration
Sets the source and target ports for mirroring.
Port Trunking
Configuration
Specifies ports to group into aggregate trunks.
BStorm Control
Configuration
Allows you to enable broadcast storm control and set the
packet-per-second threshold.
IGMP Configuration Configures IGMP multicast filtering.
Extented Bridge
Configuration
Displays/configures extended bridge capabilities provided by
this switch, including support for traffic classes, GMRP
multicast filtering, and VLAN extensions.
802.1P Configuration Configures default port priorities and queue assignments.
802.1Q VLAN
Base Information
Displays basic VLAN information, such as VLAN version
number and maximum VLANs supported.
802.1Q VLAN Current
Table Information
Displays VLAN groups and port members.
802.1Q VLAN Static
Table Configuration
Configures VLAN groups via static assignments, including
setting port members, or restricting ports from being
dynamically added to a port by the GVRP protocol.
Port Assignment
VLAN Configuration
Displays/configures port-specific VLAN settings, including
PVID, ingress filtering, and 802.1Q trunks.
Multicast Router Port
Information
Displays the ports on the switch attached to a neighboring
multicast router/switch for each VLAN ID.
Static Multicast Router
Port Cfg
Assigns ports that are attached to a neighboring multicast
router/switch.
IGMP Member Port
Configuration
Assigns ports that are attached to hosts who want to receive
a specific multicast service.
Port Security
Configuration
Allows you to enable and configure port security for the
switch.
Network Monitor Menu
Port Statistics Displays statistics on network traffic passing through the
selected port.
RMON Statistics Displays detailed statistical information for the selected port
such as packet type and frame size counters.
Unicast Address Table Provides full address listing, as well as search and clear
functions.
Selection Description

9033640 VH-8G User Interface 9
System Information Menu
Use the System Information Menu to display a basic description of the
switch, including contact information, and hardware/firmware versions.
Figure 2-3. System Information Menu
IP Multicast
Registration Table
Displays all the multicast groups active on this switch,
including multicast IP addresses and corresponding VLAN
IDs.
Static Unicast Address
Table Configuration
Used to manually configure host MAC addresses in the
unicast table.
System Restart Restarts system with options to use POST, or to retain
factory defaults, IP settings, or user authentication settings.
Exit Exits the configuration program.
Vertical Horizon Local Management -- VH-8G
System Information Menu
System Information ...
Switch Information ...
<OK>
Use <TAB> or arrow keys to move. <Enter> to select.
Selection Description
System Information Provides basic system description, including contact
information.
Switch Information Shows hardware/firmware version numbers and power status
of the switch.
Selection Description

10 VH-8G User Interface VH-8G
Displaying System Information
Use the System Information screen to display descriptive information
about the switch, or for quick system identification as shown in the
following figure and table.
Figure 2-4. System Information
Vertical Horizon Local Management -- VH-8G
System Information
System Description : Vertical Horizon VH-8G
System Object ID : 1.3.6.1.4.1.5624.2.1.9
System Up Time : 48067 (0 day, 1 hr, 2min, 34 sec)
System Name : DEFAULT SYSTEM NAME
System Contact : DEFAULT SYSTEM CONTACT
System Location : DEFAULT SYSTEM LOCATION
<APPLY> <OK> <CANCEL>
Use <TAB> or arrow keys to move, other keys to make changes.
Parameter Description
System Description System hardware description.
System Object ID MIB II object identifier for switch’s network management
subsystem.
System Up Time Length of time the current management agent has been
running. (Note that the first value is 1/100 seconds.)
System Name*Name assigned to the switch system.
System Contact*Contact person for the system.
System Location*Specifies the area or location where the system resides.
*Maximum string length is 255, but the screen only displays 45 characters. You
can use the arrow keys to browse the whole string.

9033640 VH-8G User Interface 11
Displaying Switch Version
Use the Switch Information screen to display hardware/firmware version
numbers for the switch, as well as the power status of the system.
Figure 2-5. Switch Information
Vertical Horizon Local Management -- VH-8G
Switch Information
Main Board
Hardware Version : V0.0 (860 CPU)
Firmware Version : 02.04.00.00
POST ROM Version : V1.02
Serial Number : 00-E0-63-76-F3-00
Port Number : 8
Internal Power Status : Active
Redundant Power Status : Inactive
<OK>
Use <TAB> or arrow keys to move. <Enter> to select
Parameter Description
Main Board
Hardware Version Hardware version of the main board.
Firmware Version System firmware version in ROM.
POST ROM Version Power-On Self-Test version number.
Serial Number MAC address associated with the main board.
Port Number Number of ports on the switch.
Internal Power Status Power status for the switch.
Redundant Power
Status
Redundant power status for the switch.

12 VH-8G User Interface VH-8G
Management Setup Menu
After initially logging onto the system, adjust the communication
parameters for your console to ensure a reliable connection (Serial Port
Configuration). Specify the IP addresses for the switch (Network
Configuration / IP Configuration), and then set the Administrator and User
passwords (Console Login Configuration). Remember to record them in a
safe place. Also set the community string which controls SNMP access to
the switch via in-band management software (SNMP Configuration). The
items provided by the Management Setup Menu are described in the
following sections.
Figure 2-6. Management Setup Menu
Vertical Horizon Local Management -- VH-8G
Management Setup Menu
Network Configuration ...
Serial Port Configuration ...
SNMP Configuration ...
Console Login Configuration ...
TFTP Download ...
Configuration Save & Restore ...
Management Configuration ...
<OK>
Use <TAB> or arrow keys to move. <Enter> to select.
Selection Description
Network
Configuration
Includes IP setup, Ping facility, HTTP (Web server) setup, Telnet
configuration, and MAC address.
Serial Port
Configuration
Sets communication parameters for the serial port, including
management mode, baud rate, console time-out, and screen
data refresh interval.
SNMP Configuration Activates traps; and configures communities and trap managers.
Console Login
Configuration
Sets user names and passwords for system access, as well as
the invalid password threshold and lockout time.
TFTP Download Downloads new version of firmware to update your system (in-
band).
Configuration Save &
Restore
Saves the switch configuration to a file on a TFTP server. This file
can be later downloaded to restore the configuration.
Management
Configuration
Specifies if management access to the switch is available from all
VLANs or restricted to one VLAN.