Network Requirement
- Configure the LLDP function on Device1, Device2 and Device3, realizing the link- layer neighbor discovery.
Network Topology
Figure 7-1 Networking of configuring the LLDP basic functions
Configuration Steps
Step 1: Enable the LLDP function on Device.
# Enable the LLDP function on Device1.
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Device1#configure terminal
Device1(config)#lldp run
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#Enable the LLDP function on Device2.
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Device2#configure terminal
Device2(config)#lldp run
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#Enable the LLDP function on Device3.
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Device3#configure terminal
Device3(config)#lldp run
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Step 2: Configure the LLDP function on the port.
#Enable the LLDP function on port gigabitethernet0/1 of Device1.
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Device1(config)#interface gigabitethernet 0/1
Device1(config-if-gigabitethernet0/1)#lldp enable
Device1(config-if-gigabitethernet0/1)#exit
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#Enable the LLDP function on port gigabitethernet0/1 and gigabitethernet0/2 of Device2.
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Device2(config)#interface gigabitethernet 0/1
Device2(config-if-gigabitethernet0/1)#lldp enable
Device2(config-if-gigabitethernet0/1)#exit
Device2(config)#interface gigabitethernet 0/2
Device2(config-if-gigabitethernet0/2)#lldp enable
Device2(config-if-gigabitethernet0/2)#exit
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#Enable the LLDP function on port gigabitethernet0/1 of Device3.
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Device3(config)#interface gigabitethernet 0/1
Device3(config-if-gigabitethernet0/1)#lldp enable
Device3(config-if-gigabitethernet0/1)#exit
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Step 3: Check the result.
#View the neighbor information on Device1.
Device1#show lldp neighbors
1 neighbor entries in system
Capability codes:
(R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
(W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other
Index Local Intf Hold-time Capability Peer Intf Device ID
1 gi0/1 120 P,R, gi0/1 Device2
Total entries displayed: 1
Device1 discovers neighbor Device2.
#View the details of Device1 neighbor.
Device1#show lldp neighbors detail
Neighbor 1:
1. Basic information
Chassis ID....................... 0001.7a54.5d0b
Interface ID : gi0/1
Interface Description : gigabitethernet0/1
System Name : Device2
System Description : MyPower (R) Operating System Software
Copyright (C) 2013 Maipu Communication Technology Co.,Ltd.All Rights Reserved.
Time Remaining : 111 seconds
System Capabilities : P,R,
Enabled Capabilities : P,R,
Management Addresses : IP,10.0.0.1
2. 802.1 organizationally information
Port VLAN ID : 1
Port And Protocol VLAN ID : 0
VLAN Name Of VLAN 1 : DEFAULT
3. 802.3 organizationally information
Auto Negotiation : Supported, Enabled
OperMau : Speed(1000)/Duplex(Full)
Port Class : PSE
PSE Power : Supported, Enabled
PSE Pairs Control Ability : No
Power Pairs : 1
Power Class : 1
Link Aggregation : Supported, Disabled
Link Aggregation ID : 0
Max Translate Unit : 1824
4. MED organizationally information
Capabilities : Not Supported
Class Type : Not Supported
Application Type : Not Supported
Policy : Not Supported
VLAN Tagged : Not Supported
VLAN ID : Not Supported
L2 Priority : Not Supported
DSCP Value : Not Supported
Location ID : Not Supported
Power Type : Not Supported
Power Source : Not Supported
Power Priority : Not Supported
Power Value : Not Supported
HardwareRev : Not Supported
FirmwareRev : Not Supported
SoftwareRev : Not Supported
SerialNum : Not Supported
Manufacturer Name : Not Supported
Model Name : Not Supported
Asset Tracking Identifier : Not Supported
Total entries displayed: 1
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For viewing the neighbor information of Device2 and Device3, refer to Device1.
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