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Example for Configuring LLDP on a Network with Link Aggregation Configured
Networking Requirements
As shown in Figure 3-13, SwitchA and SwitchB are connected through an Eth-Trunk; the NMS has reachable routes to SwitchA and SwitchB; SNMP is configured on devices and NMS.
A network administrator wants to obtain Layer 2 information about SwitchA and SwitchB to know details about network topology and configuration conflicts. The LLDP function can meet the network administrator's requirement.
Configuration Roadmap
The configuration
roadmap is as follows:
- Add physical interfaces on SwitchA and SwitchB to the Eth-Trunk.
- Enable global LLDP on SwitchA and SwitchB.
Procedure
- Add physical interfaces on SwitchA and SwitchB to the Eth-Trunk.
# Configure SwitchA.
<HUAWEI> system-view [HUAWEI] sysname SwitchA [SwitchA] vlan batch 100 [SwitchA] interface eth-trunk 1 [SwitchA-Eth-Trunk1] trunkport gigabitethernet 1/0/1 [SwitchA-Eth-Trunk1] trunkport gigabitethernet 1/0/2 [SwitchA-Eth-Trunk1] trunkport gigabitethernet 1/0/3 [SwitchA-Eth-Trunk1] port link-type trunk [SwitchA-Eth-Trunk1] port trunk allow-pass vlan 100 [SwitchA-Eth-Trunk1] quit
# Configure SwitchB.
<HUAWEI> system-view [HUAWEI] sysname SwitchB [SwitchB] vlan batch 100 [SwitchB] interface eth-trunk 1 [SwitchB-Eth-Trunk1] trunkport gigabitethernet 1/0/1 [SwitchB-Eth-Trunk1] trunkport gigabitethernet 1/0/2 [SwitchB-Eth-Trunk1] trunkport gigabitethernet 1/0/3 [SwitchB-Eth-Trunk1] port link-type trunk [SwitchB-Eth-Trunk1] port trunk allow-pass vlan 100 [SwitchB-Eth-Trunk1] quit
- Enable global LLDP on SwitchA and SwitchB.
# Configure SwitchA.
[SwitchA] lldp enable# Configure SwitchB.[SwitchB] lldp enable - Verify the configurations.
Check the SwitchA configuration.
# Check whether the physical interfaces have been added to Eth-Trunk1.
[SwitchA] display eth-trunk 1 Eth-Trunk1's state information is: WorkingMode: NORMAL Hash arithmetic: According to SIP-XOR-DIP Least Active-linknumber: 1 Max Bandwidth-affected-linknumber: 8 Operate status: up Number Of Up Port In Trunk: 3 -------------------------------------------------------------------------------- PortName Status Weight GigabitEthernet1/0/1 Up 1 GigabitEthernet1/0/2 Up 1 GigabitEthernet1/0/3 Up 1
# Check neighbor information for SwitchA.
[SwitchA] display lldp neighbor brief Local Intf Neighbor Dev Neighbor Intf Exptime(s) GE1/0/1 SwitchB GE1/0/1 115 GE1/0/2 SwitchB GE1/0/2 115 GE1/0/3 SwitchB GE1/0/3 115
Check the SwitchB configuration.
Refer to the steps for checking SwitchA.
Configuration Files
SwitchA configuration file
# sysname SwitchA # vlan batch 100 # lldp enable # interface Eth-Trunk1 port link-type trunk port trunk allow-pass vlan 100 # interface GigabitEthernet1/0/1 eth-trunk 1 # interface GigabitEthernet1/0/2 eth-trunk 1 # interface GigabitEthernet1/0/3 eth-trunk 1 # return
SwitchB configuration file
# sysname SwitchB # vlan batch 100 # lldp enable # interface Eth-Trunk1 port link-type trunk port trunk allow-pass vlan 100 # interface GigabitEthernet1/0/1 eth-trunk 1 # interface GigabitEthernet1/0/2 eth-trunk 1 # interface GigabitEthernet1/0/3 eth-trunk 1 # return