Dell 5324 - PowerConnect Switch Instrucciones de instalación y funcionamiento

DellTM PowerConnectTM 5324 Systems

User’s Guide Addendum

www.dell.com | support.dell.com

Notes, Notices, and Cautions

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NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the

problem.

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September 2006

New Features

This document in an addendum to the PowerConnect 5324 user guide and includes the following topics:

• Configuring LLDP

• Defining SNMP Parameters

• HTTP/HTTPS Upload/Download

• Defining STP Root Guard

• Configuring Multiple Spanning Tree

• Configuring QinQ

• Configuring Load Balancing

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Configuring LLDP

The

Link Layer Discovery Protocol

(LLDP) allows network managers to troubleshoot and enhance network

management by discovering and maintaining network topologies over multi-vendor environments. LLDP

discovers network neighbors by standardizing methods for network devices to advertise themselves to other

system, and to store discovered information. Device discovery information includes:

• Device Identification

• Device Capabilities

• Device Configuration

The advertising device transmits multiple advertisement message sets in a single LAN packet. The multiple

advertisement sets are sent in the packet

Type Length Value

(TLV) field. LLDP devices must support chassis and

port ID advertisement, as well as system name, system ID, system description, and system capability

advertisements.

The

LLDP Properties

page contains fields for configuring LLDP.

To open the

LLDP Properties

Page, click

Security

→

LLDP

→

LLDP Properties

in the tree view

Figure 1-1. LLDP Properties

Enable LLDP

—

Indicates if LLDP is enabled on the device. The possible field values are:

Checked

— Indicates that LLDP is enabled on the device.

Unchecked

— Indicates that LLDP is disabled on the device. This is the default value.

Updates Interval (5-32768) —

Indicates that rate at which LLDP advertisement updates are sent. The

possible field range is 5 - 32768 seconds. The default value is 30 seconds.

Hold Time (2-10) —

Indicates the amount of time that LLDP packets are held before the packets are dis-

carded. The possible field range is 2 - 10 seconds. The field default is 4 seconds.

Reinitializing Delay (1-10) — Indicates the amount of time that passes between disabling LLDP and when

reinitializing begins. The possible field range is 1 - 10 seconds. The field default is 2 seconds.

Transmit Delay (1-8192) — Indicates the amount of time that passes between successive LLDP frame trans-

missions due to changes in the LLDP local systems MIB. The possible field value is

1 – 8192 seconds. The field default is 2 seconds.

Configuring LLDP Using CLI Commands

The following is an example of the CLI commands:

Table 1-1. LLDP Properties CLI Commands

CLI Command Description

lldp enable (global) Enables enable Link Layer Discovery

Protocol.

lldp hold-multiplier

number

Specifies the time that the receiving

device should hold a Link Layer

Discovery Protocol (LLDP) packet

before discarding it.

lldp reinit-delay

Seconds

Specifies the minimum time an LLDP

port will wait before reinitializing.

lldp tx-delay

Seconds

Specifies the delay between successive

LLDP frame tr.ansmissions.

Console(config)# interface ethernet g5

Console(config-if)# lldp enable

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Defining LLDP Port Settings

The LLDP

Port Settings

page allows network administrators to define LLDP port settings, including the port

number, the LLDP port number, and the type of port information advertised.

The

Port Settings

page contains fields for configuring LLDP. To open the

Port Settings

page, click

Security

→

LLDP

→

Port Settings

in the tree view

Figure 1-2. Port Settings

Port

— Contains a list of ports on which LLDP is enabled.

State

— Indicates the port type on which LLDP is enabled. The possible field values are:

Tx Only

— Enables transmitting LLDP packets only.

Rx Only

— Enables receiving LLDP packets only.

Tx & Rx

— Enables transmitting and receiving LLDP packets. This is the default value.

Disable

— Indicates that LLDP is disabled on the port.

Use Default

— Indicates that information included in the TLVs is per the device defaults. The possible field

values are:

Checked

— Enables sending the device default LLDP advertisements.

Unchecked

— Indicates that the device LLDP advertisement settings are disabled, and LLDP

advertisement settings are user defined. This is the default value.

Optional TLVs

— Contains a list of optional TLVs advertised by the port. For the complete list, see the

Available TLVs

field.

Available TLVs

— Contains a list of available TLVs that can be advertised by the port. The possible field values

are:

Port Description

— Advertises the port description.

System Name

— Advertises the system name.

System Description

— Advertises the system description.

System Capabilities

— Advertises the system capabilities.

Management IP Address

— Indicates the management IP address that is advertised from the interface.

The

LLDP Port Table

page displays the LLDP Port Configuration. To open the

LLDP Port Table

, click

Security

→

LLDP

→

Port Settings

→

how All

in the tree view

Figure 1-3. LLDP Port Table

Table 1-2. LLDP Port settings CLI Commands

The following is an example of the CLI commands:

CLI Command Description

clear lldp rx

interface

Restarts the LLDP RX state machine

and clearing the neighbors table

lldp optional-tlv

tlv1 [tlv2

… tlv5]

Specifies which optional TLVs from the

basic set should be transmitted

lldp enable [rx | tx | both] To enable Link Layer Discovery

Protocol (LLDP) on an interface.

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Console(config)# interface ethernet g5

Console(config-if)# lldp enable

Viewing Advertised Information

The LLDP

Advertised Information

page displays the information advertised by specific ports when advertising

LLDP information. To open the

Advertised Information

page, click

Security

→

LLDP

→

Advertised

Information

in the tree view.

Figure 1-4. Advertised Information

Port

— Displays the port number from which the advertised information is sent.

Device ID

— Displays the advertised device ID.

Capabilities

— Displays the advertised device capabilities.

System Name

— Displays the advertised system name.

System Description

— Displays the advertised system description.

Port Description

— Displays the advertised port description.

Management Address

— Displays the advertised management address.

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Displaying the Advertised Information Table

To open the

Advertised Information Table

, click

Security

→

LLDP

→

Advertised Information

→

Show All

the tree view

Figure 1-5. Advertised Information Table

Table 1-3. LLDP Advertised Information CLI Commands

CLI Command Description

show lldp local

ethernet

interface

Displays LLDP information

advertised from a specific port.

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