Which interfaces on the AR router support LLDP

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For V200R002C00 and later versions, only Layer 2 Ethernet interfaces on the AR series router support LLDP.
For V200R002C01 and later versions, Layer 2 and Layer 3 Ethernet interfaces on the AR series router support LLDP.

Other related questions:
Which interfaces of the AR router support PPPoE dialup
1. A VT interface must be bound to an interface so that the PPPoE server can be implemented. The PPPoE server can be configured on a physical Ethernet interface, a PON interface, a VLANIF interface, or a virtual Ethernet interface. 2. The dialer interface must be bound to an interface so that the PPPoE client can be implemented. The PPPoE client can be configured on a physical Ethernet interface, a PON interface, or a virtual Ethernet interface. The physical Ethernet interfaces refer to WAN-side Ethernet interfaces. LAN-side Ethernet interfaces do not support PPPoE.

Which interfaces can be configured with MPLS
MPLS can be configured on the following interfaces: - GE interface - GE sub-interface - XGE interface (V200R005C10 and later versions) - XGE sub-interface (V200R005C10 and later versions) - Ethernet interface - Ethernet sub-interface - Eth-Trunk - Eth-trunk sub-interface - Serial interface - POS interface - MP-Group - IP-Trunk (V200R005C10 and later versions)

Functions of LLDP on an AR router
The Link Layer Discovery Protocol (LLDP) is a standard Layer 2 topology discovery protocol defined in IEEE 802.1ab. It can identify the interfaces on a network device and provide detailed information about connections between devices. It can also display paths between clients, switches, routers, application servers, and network servers.

Which types of interfaces support VRRP on the AR router
Interfaces that support VRRP are as follows: Layer 3 Ethernet interfaces, VLANIF interfaces, Layer 3 Eth-Trunks, Ethernet sub-interfaces, and Eth-Trunk sub-interfaces.

Which types of active interfaces and standby interfaces are supported by the AR router
Types of active interfaces supported by the AR routers: Layer 3 Ethernet interfaces and their sub-interfaces, dialer interfaces, ATM interfaces, ISDN BRI interfaces, asynchronous interfaces, cellular interfaces, PON interfaces, MP-group interfaces, MFR interfaces, FR sub-interfaces, and serial interfaces and their sub-interfaces Types of standby interfaces supported by the AR routers: Layer 3 Ethernet interfaces and their sub-interfaces, dialer interfaces, ATM interfaces, BRI interfaces, asynchronous interfaces, cellular interfaces, MP-group interfaces, MFR interfaces, FR sub-interfaces, and serial interfaces and their sub-interfaces. ISDN BRI interfaces, PON interfaces, and asynchronous interfaces cannot be used as active or standby interfaces on AR120&AR150&AR160&AR200 series.

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