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LLDP兼容CDP功能配置
2022-07-06 17:21:00 【微思xmws】
配置需求
Device A通过接口GigabitEthernet1/0/1和GigabitEthernet1/0/2分别与两部Cisco的IP电话相连,这两部IP电话发送的Tagged语音数据。
在Device A上配置VLAN ID为2的Voice VLAN,通过在Device A上配置LLDP兼容CDP功能使IP电话完成Voice VLAN的自动配置,以使语音数据流被限制在Voice VLAN内,与其他数据流区分开来。
组网图
图1-6 LLDP兼容CDP功能配置组网图
配置步骤
(1) 在Device A上配置Voice VLAN
# 创建VLAN 2。
<DeviceA> system-view
[DeviceA] vlan 2
[DeviceA-vlan2] quit
# 分别将接口GigabitEthernet1/0/1和GigabitEthernet1/0/2配置为Trunk端口,并开启Voice VLAN功能。
[DeviceA] interface gigabitethernet 1/0/1
[DeviceA-GigabitEthernet1/0/1] port link-type trunk
[DeviceA-GigabitEthernet1/0/1] voice-vlan 2 enable
[DeviceA-GigabitEthernet1/0/1] quit
[DeviceA] interface gigabitethernet 1/0/2
[DeviceA-GigabitEthernet1/0/2] port link-type trunk
[DeviceA-GigabitEthernet1/0/2] voice-vlan 2 enable
[DeviceA-GigabitEthernet1/0/2] qui
(2) 在Device A上配置LLDP兼容CDP功能
# 全局开启LLDP功能以及LLDP兼容CDP功能。
[DeviceA] lldp global enable
[DeviceA] lldp compliance cdp
# 在接口GigabitEthernet1/0/1和GigabitEthernet1/0/2上分别开启LLDP功能(此步骤可省略,LLDP功能在接口上缺省开启),配置LLDP工作模式为TxRx,并配置LLDP兼容CDP功能的工作模式为TxRx。
[DeviceA] interface gigabitethernet 1/0/1
[DeviceA-GigabitEthernet1/0/1] lldp enable
[DeviceA-GigabitEthernet1/0/1] lldp admin-status txrx
[DeviceA-GigabitEthernet1/0/1] lldp compliance admin-status cdp txrx
[DeviceA-GigabitEthernet1/0/1] quit
[DeviceA] interface gigabitethernet 1/0/2
[DeviceA-GigabitEthernet1/0/2] lldp enable
[DeviceA-GigabitEthernet1/0/2] lldp admin-status txrx
[DeviceA-GigabitEthernet1/0/2] lldp compliance admin-status cdp txrx
[DeviceA-GigabitEthernet1/0/2] quit
# 显示Device A上的邻居信息。
[DeviceA] display lldp neighbor-information
CDP neighbor-information of port 1[GigabitEthernet1/0/1]:
LLDP agent nearest-bridge:
CDP neighbor index : 1
Chassis ID : SEP00141CBCDBFE
Port ID : Port 1
CDP neighbor-information of port 2[GigabitEthernet1/0/2]:
LLDP agent nearest-bridge:
CDP neighbor index : 2
Chassis ID : SEP00141CBCDBFF
Port ID : Port
由此可见,Device A已发现了分别连接在接口GigabitEthernet1/0/1和GigabitEthernet1/0/2上的IP电话,并获取到了相关的设备信息。
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