Dell 5324 - PowerConnect Switch Istruzioni per l'installazione e il funzionamento
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DellTM PowerConnectTM 5324 Systems
User’s Guide Addendum
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Notes, Notices, and Cautions
NOTE: A NOTE indicates important information that helps you make better use of your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.
____________________
Information in this document is subject to change without notice.
© 2006 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, Dell OpenManage, the DELL logo, and PowerConnect are trademarks of Dell Inc. Microsoft and Windows
are registered trademarks of Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products.
Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
September 2006
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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.
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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.
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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
→
S
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
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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
in
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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