Which interfaces support BFD sessions on the AR router

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In V200R001C00, only Ethernet interfaces support BFD sessions. In V200R001C01 and later versions, the following interfaces support common BFD sessions: Physical interfaces: Layer 3 Ethernet interfaces, serial interfaces (including synchronous SA interfaces, E1/T1 interfaces, CE1/CT1/PRI interfaces, CE3 interfaces, and CPOS interfaces), POS interfaces, ATM interfaces (including ADSL interfaces, VDSL interfaces, E1-IMA interfaces, and G.SHDSL interfaces) Logical interfaces: dialer interfaces, VLANIF interfaces, Layer 3 Eth-Trunk interfaces, IP-Trunk interfaces, MP-Group interfaces, MFR interfaces, IMA-Group interfaces, serial sub-interfaces, channelized serial sub-interfaces, IMA-Group sub-interfaces, POS sub-interfaces, ATM sub-interfaces, MFR sub-interfaces, Ethernet sub-interfaces (including Dot1q sub-interfaces and QinQ sub-interfaces), and Eth-Trunk sub-interfaces (Dot1q sub-interfaces). Note: When a physical Ethernet interface consists of multiple sub-interfaces, a BFD session can be established on the physical Ethernet interface or each sub-interface. In V200R001C01 and later versions, the following interfaces support multicast BFD sessions: Physical interfaces: Layer 2 and Layer 3 Ethernet interfaces. Logical interfaces: Layer 2 and Layer 3 Eth-Trunks. Note: Multicast BFD sessions cannot be established on Layer 2 Ethernet interfaces, Layer 2 Eth-Trunks, or Layer 3 Eth-Trunks of AR120, AR150, AR160, AR200 and AR1200's SRUs. When a physical Ethernet interface consists of multiple sub-interfaces, a BFD session can be established on the physical Ethernet interface or each sub-interface.

Other related questions:
Which interfaces can be configured with BFD sessions
In V200R001C00, only Ethernet interfaces support BFD sessions. In V200R001C01 and later versions, the following interfaces support common BFD sessions: -Physical interfaces: Layer 3 Ethernet interfaces, serial interfaces (including synchronous SA interfaces, E1/T1 interfaces, CE1/CT1/PRI interfaces, CE3 interfaces, and CPOS interfaces), POS interfaces, ATM interfaces (including ADSL interfaces, VDSL interfaces, E1-IMA interfaces, and G.SHDSL interfaces). -Logical interfaces: Ethernet sub-interfaces (including Dot1q sub-interfaces and QinQ sub-interfaces), dialer interfaces, VLANIF interfaces, Layer 3 Eth-Trunk interfaces, IP-Trunk interfaces, MP-Group interfaces, MFR interfaces, IMA-group interfaces, serial sub-interfaces, channelized serial sub-interfaces, IMA-group sub-interfaces, POS sub-interfaces, ATM sub-interfaces, MFR sub-interfaces, and Eth-Trunk sub-interfaces (Dot1q sub-interfaces). NOTE: When a physical Ethernet interface consists of multiple sub-interfaces, a BFD session can be established on the physical Ethernet interface or each sub-interface. In V200R001C01 and later versions, the following interfaces support multicast BFD sessions: -Physical interfaces: Layer 2 and Layer 3 Ethernet interfaces -Logical interfaces: Layer 2 Eth-Trunk interfaces and Layer 3 Eth-Trunk interfaces NOTE: -Multicast BFD sessions cannot be established on Layer 2 Ethernet interfaces, Layer 2 Eth-Trunk interfaces, or Layer 3 Eth-Trunk interfaces of AR120&AR150&AR160&AR200 or AR1200's SRUs. -When a physical Ethernet interface consists of multiple sub-interfaces, a BFD session can be established on the physical Ethernet interface or each sub-interface.

Which interfaces on the AR router support LLDP
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.

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)

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.

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