Cisco Sg3008 Manual

							Administration: Discovery
Configuring LLDP
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•Chassis ID Advertisement—Select one of the following options for 
advertisement in the LLDP messages:
-
MAC Address—Advertise the MAC address of the device.
-
Host Name—Advertise the host name of the device.
STEP  3In the Fast Start Repeat Count field, enter the number of times LLDP packets are 
sent when the LLDP-MED Fast Start mechanism is initialized. This occurs when a 
new endpoint device links to the device. For a description of LLDP MED, refer to 
the LLDP MED Network Policy section.
STEP  4Click Apply. The LLDP properties are added to the Running Configuration file.
Editing LLDP Port Settings
The Port Settings page enables activating LLDP and SNMP notification per port, 
and entering the TLVs that are sent in the LLDP PDU.
The LLDP-MED TLVs to be advertised can be selected in the LLDP MED Port 
Settings page, and the management address TLV of the device may be 
configured. 
To define the LLDP port settings:
STEP 1Click Administration > Discovery - LLDP > Port Settings.
This page contains the port LLDP information.
STEP  2Select a port and click Edit.
This page provides the following fields:
•Interface—Select the port to edit.
•Administrative Status—Select the LLDP publishing option for the port. The 
values are:
-Tx  O n l y—Publishes but does not discover.
-Rx Only—Discovers but does not publish.
-Tx  &  R x—Publishes and discovers.
-Disable—Indicates that LLDP is disabled on the port. 
						

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•SNMP Notification—Select Enable to send notifications to SNMP 
notification recipients; for example, an SNMP managing system, when there 
is a topology change. 
The time interval between notifications is entered in the Topology Change 
SNMP Notification Interval field in the LLDP Properties page. Define SNMP 
Notification Recipients by using the SNMP > Notification Recipient v1,2 
and/or SNMP > Notification Recipient v3 page.
•Available Optional TLVs—Select the information to be published by the 
device by moving the TLV to the Selected Optional TLVs list. The available 
TLVs contain the following information:
-Por t Description—Information about the port, including manufacturer, 
product name and hardware/software version.
-System Name—Systems assigned name (in alpha-numeric format). The 
value equals the sysName object.
-System Description—Description of the network entity (in alpha-
numeric format). This includes the systems name and versions of the 
hardware, operating system, and networking software supported by the 
device. The value equals the sysDescr object.
-System Capabilities—Primary functions of the device, and whether or 
not these functions are enabled in the device. The capabilities are 
indicated by two octets. Bits 0 through 7 indicate Other, Repeater, Bridge, 
WLAN AP, Router, Telephone, DOCSIS cable device, and station 
respectively. Bits 8 through 15 are reserved. 
-802.3 MAC-PHY—Duplex and bit rate capability and the current duplex 
and bit rate settings of the sending device. It also indicates whether the 
current settings are due to auto-negotiation or manual configuration.
-802.3 Link Aggregation—Whether the link (associated with the port on 
which the LLDP PDU is transmitted) can be aggregated. It also indicates 
whether the link is currently aggregated, and if so, provides the 
aggregated port identifier.
-802.3 Maximum Frame—Maximum frame size capability of the MAC/
PHY implementation.
The following fields relate to the Management Address:
•Advertisement Mode—Select one of the following ways to advertise the IP 
management address of the device: 
						

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-Auto Adver tise—Specifies that the software would automatically 
choose a management address to advertise from all the IP addresses of 
the product. In case of multiple IP addresses the software chooses the 
lowest IP address among the dynamic IP addresses. If there are no 
dynamic addresses, the software chooses the lowest IP address among 
the static IP addresses.
-None—Do not advertise the management IP address.
-Manual Adver tise—Select this option and the management IP address to 
be advertised. We recommend you select this option when the device is 
in Layer 3 system mode and the device is configured with multiple IP 
addresses (this is always true on SG500X/ESW2-550X devices).
•IP Address—If Manual Advertise was selected, select the Management IP 
address from the addresses provided.
STEP  3Enter the relevant information, and click Apply. The port settings are written to the 
Running Configuration file.
LLDP MED Network Policy
LLDP Media Endpoint Discovery (LLDP-MED) is an extension of LLDP that provides 
the following additional capabilities to support media endpoint devices. Some of 
the features of the LLDP Med Network Policy are:
•Enables the advertisement and discovery of network polices for real-time 
applications such as voice and/or video.
•Device location discovery to allow creation of location databases and, in the 
case of Voice over Internet Protocol (VoIP), Emergency Call Service (E-911) 
by using IP Phone location information.
•Troubleshooting information. LLDP MED sends alerts to network managers 
upon: 
-Port speed and duplex mode conflicts
-QoS policy misconfigurations  
						

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Setting LLDP MED Network Policy
An LLDP-MED network policy is a related set of configuration settings for a 
specific real-time application such as voice, or video. A network policy, if 
configured, can be included in the outgoing LLDP packets to the attached LLDP 
media endpoint device. The media endpoint device must send its traffic as 
specified in the network policy it receives. For example, a policy can be created 
for VoIP traffic that instructs VoIP phone to:
•Send voice traffic on VLAN 10 as tagged packet and with 802.1p priority 5.
•Send voice traffic with DSCP 46.
Network policies are associated with ports by using the LLDP MED Port Settings 
page. An administrator can manually configure one or more network policies and 
the interfaces where the policies are to be sent. It is the administrators 
responsibility to manually create the VLANs and their port memberships 
according to the network policies and their associated interfaces.
In addition, an administrator can instruct the device to automatically generate and 
advertise a network policy for voice application based on the voice VLAN 
maintained by the device. Refer the Auto Voice VLAN section for details on how 
the device maintains its voice VLAN.
To define an LLDP MED network policy:
STEP 1Click Administration > Discovery - LLDP > LLDP MED Network Policy.
This page contains previously-created network policies.
STEP  2Select Auto for LLDP-MED Network Policy for Voice Application if the device is to 
automatically generate and advertise a network policy for voice application based 
on the voice VLAN maintained by the device. 
NOTEWhen this box is checked, you may not manually configure a voice 
network policy.
STEP  3Click Apply to add this setting to the Running Configuration file.
STEP  4To define a new policy, click Add.
STEP  5Enter the values:
•Network Policy Number—Select the number of the policy to be created.
•Application—Select the type of application (type of traffic) for which the 
network policy is being defined.
•VLAN ID—Enter the VLAN ID to which the traffic must be sent. 
						

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•VLAN Tag—Select whether the traffic is Tagged or Untagged.
•User Priority—Select the traffic priority applied to traffic defined by this 
network policy. This is the CoS value.
•DSCP Value—Select the DSCP value to associate with application data 
sent by neighbors. This informs them how they must mark the application 
traffic they send to the device. 
STEP  6Click Apply. The network policy is defined. 
NOTEYou must manually configure the interfaces to include the desired 
manually-defined network policies for the outgoing LLDP packets using the 
LLDP MED Port Settings. 
Configuring LLDP MED Port Settings
The LLDP MED Port Settings page enables the selection of the LLDP-MED TLVs 
and/or the network policies to be included in the outgoing LLDP advertisement for 
the desired interfaces. Network Policies are configured using the LLDP MED 
Network Policy page. 
NOTEIf LLDP-MED Network Policy for Voice Application (LLDP-MED Network Policy 
Page) is Auto and Auto Voice VLAN is in operation, then the device automatically 
generates an LLDP-MED Network Policy for Voice Application for all the ports that 
are LLDP-MED enabled and are members of the voice VLAN.
To configure LLDP MED on each port:
STEP 1Click Administration > Discovery - LLDP > LLDP MED Port Settings.
This page contains LLDP MED settings, including enabled TLVs, for all ports. 
STEP  2The message at the top of the page indicates whether the generation of the LLDP 
MED Network Policy for the voice application is automatic or not (see LLDP 
Overview). Click on the link to change the mode.
STEP  3To associate additional LLDP MED TLV and/or one or more user-defined LLDP 
MED Network Policies to a port, select it, and click Edit.
STEP  4Enter the parameters:
•Interface—Select the interface to configure. 
•LLDP MED Status—Enable/disable LLDP MED on this port. 
						

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•SNMP Notification—Select whether SNMP notification is sent on a per-port 
basis when an end station that supports MED is discovered; for example a 
SNMP managing system, when there is a topology change. 
•Available Optional TLVs—Select the TLVs that can be published by the 
device by moving them to the Selected Optional TLVs list.
•Available Net work Policie s—Select the LLDP MED policies to be published 
by LLDP by moving them to the Selected Network Policies list. These were 
created in the LLDP MED Network Policy page
. To include one or more user-
defined network polices in the advertisement, you must also select 
Network 
Policy
 from the Available Optional TLVs. 
NOTEThe following fields must be entered in hexadecimal characters in the 
exact data format that is defined in the LLDP-MED standard (ANSI-TIA-
1057_final_for_publication.pdf):
-Location Coordinate—Enter the coordinate location to be published by 
LLDP.
-Location Civic Address—Enter the civic address to be published by 
LLDP.
-Location (ECS) ELIN—Enter the Emergency Call Service (ECS) ELIN 
location to be published by LLDP.
STEP  5Click Apply. The LLDP MED port settings are written to the Running Configuration 
file.
Displaying LLDP Port Status
The LLDP Port Status Table page contains the LLDP global information for every 
port.
STEP 1To view the LLDP port status, click Administration > Discovery - LLDP > LLDP 
Port Status.
STEP  2Click LLDP Local Information Detail to see the details of the LLDP and LLDP-MED 
TLVs sent to the neighbor.
STEP  3Click LLDP Neighbor Information Detail to see the details of the LLDP and LLDP-
MED TLVs received from the neighbor.  
						

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LLDP Por t Status Global Information
•Chassis ID Subtype—Type of chassis ID (for example, MAC address).
•Chassis ID—Identifier of chassis. Where the chassis ID subtype is a MAC 
address, the MAC address of the device appears.
•System Name—Name of device.
•System Description—Description of the device (in alpha-numeric format). 
•Supported System Capabilities—Primary functions of the device, such as 
Bridge, WLAN AP, or Router. 
•Enabled System Capabilities—Primary enabled function(s) of the device.
•Port ID Subtype—Type of the port identifier that is shown.
LLDP Port Status Table
•Interface—Port identifier.
•LLDP Status—LLDP publishing option.
•LLDP MED Status—Enabled or disabled.
•Local PoE—Local PoE information advertised.
•Remote PoE—PoE information advertised by the neighbor.
•# of neighbors—Number of neighbors discovered.
•Neighbor Capability of 1st Device—Displays the primary functions of the 
neighbor; for example: Bridge or Router.
Displaying LLDP Local Information
To view the LLDP local port status advertised on a port:
STEP 1Click Administration > Discovery - LLDP > LLDP Local Information.
STEP  2On the bottom of the page, click LLDP Port Status Table. 
						

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Click LLDP Local Information Details to see the details of the LLDP and LLDP MED 
TLVs sent to the neighbor.
Click LLDP Neighbor Information Details to see the details of the LLDP and LLDP-
MED TLVs received from the neighbor.
STEP  3Select the desired port from the Port list.
This page displays the following fields:
Global
•Chassis ID Subtype—Type of chassis ID. (For example, the MAC address.)
•Chassis ID—Identifier of chassis. Where the chassis ID subtype is a MAC 
address, the MAC address of the device appears.
•System Name—Name of device.
•System Description—Description of the device (in alpha-numeric format). 
•Supported System Capabilities—Primary functions of the device, such as 
Bridge, WLAN AP, or Router. 
•Enabled System Capabilities—Primary enabled function(s) of the device.
•Port ID Subtype—Type of the port identifier that is shown.
•Port ID—Identifier of port.
•Port Description—Information about the port, including manufacturer, 
product name and hardware/software version.
Management Address
Displays the table of addresses of the local LLDP agent. Other remote managers 
can use this address to obtain information related to the local device. The address 
consists of the following elements:
•Address Subtype—Type of management IP address that is listed in the 
Management Address field; for example, IPv4.
•Address—Returned address most appropriate for management 
use,typically a Layer 3 address.
•Interface Subtype—Numbering method used for defining the interface 
number.
•Interface Number—Specific interface associated with this management 
address.  
						

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MAC/PHY Details
•Auto-Negotiation Supported—Port speed auto-negotiation support status.
•Auto-Negotiation Enabled—Port speed auto-negotiation active status.
•Auto-Negotiation Advertised Capabilities—Port speed auto-negotiation 
capabilities; for example, 1000BASE-T half duplex mode, 100BASE-TX full 
duplex mode.
•Operational MAU Type—Medium Attachment Unit (MAU) type. The MAU 
performs physical layer functions, including digital data conversion from the 
Ethernet interfaces collision detection and bit injection into the network; for 
example, 100BASE-TX full duplex mode.
802.3 Details
•802.3 Maximum Frame Size—The maximum supported IEEE 802.3 frame 
size.
802.3 Link Aggregation
•Aggregation Capability—Indicates whether the interface can be 
aggregated.
•Aggregation Status—Indicates whether the interface is aggregated.
•Aggregation Port ID—Advertised aggregated interface ID.
802.3 Energy Efficient Ethernet (EEE) (If device suppor ts EEE)
•Local Tx—Indicates the time (in micro seconds) that the transmitting link 
partner waits before it starts transmitting data after leaving Low Power Idle 
(LPI mode).
•Local Rx—Indicates the time (in micro seconds) that the receiving link 
partner requests that the transmitting link partner waits before transmis sion 
of data following Low Power Idle (LPI mode).
•Remote Tx Echo—Indicates the local link partner ’s reflection of the remote 
link partner ’s Tx value. 
•Remote Rx Echo—Indicates the local link partner ’s reflection of the remote 
link partner ’s Rx value.
MED Details
•Capabilities Supported—MED capabilities supported on the port. 
						

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•Current Capabilities—MED capabilities enabled on the port.
•Device Class—LLDP-MED endpoint device class. The possible device 
classes are:
-
Endpoint Class 1—Indicates a generic endpoint class, offering basic 
LLDP services.
-
Endpoint Class 2—Indicates a media endpoint class, offering media 
streaming capabilities, as well as all Class 1 features.
-
Endpoint Class 3—Indicates a communications device class, offering all 
Class 1 and Class 2 features plus location, 911, Layer 2 device support, 
and device information management capabilities.
•PoE Device Type—Port PoE type; for example, powered.
•PoE Power Source—Port power source.
•PoE Power Priority—Port power priority.
•PoE Power Value—Port power value.
•Hardware Revision—Hardware version.
•Firmware Revision—Firmware version.
•Software Revision—Software version.
•Serial Number—Device serial number.
•Manufacturer Name—Device manufacturer name.
•Model Name—Device model name.
•Asset ID—Asset ID.
Location Information
•Civic—Street address.
•Coordinates—Map coordinates: latitude, longitude, and altitude.
•ECS ELIN—Emergency Call Service (ECS) Emergency Location 
Identification Number (ELIN). 
Network Policy Table
•Application Type—Network policy application type; for example, Voice.
•VLAN ID—VLAN ID for which the network policy is defined.