Which types of interfaces support VRRP on the AR router

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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.

Other related questions:
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.

AR router support for the VRRP feature
AR router support for the VRRP feature: All AR routers support VRRP. At present, there is no difference between AR router support for VRRP.

Which trunks does the AR router support
The AR router supports the following trunks: - A PRA trunk is connected to a VE1 interface and is usually used to connect two PBXs. - AT0 trunk: An AT0 trunk is connected to an FXO interface. It is an analog circuit trunk and uses the FXO interface of the AR to connect to the PSTN through a common telephone line. If PBX users in an enterprise need to make local calls to external users or to make toll calls, the AT0 trunk is configured. - SIP trunk: SIP trunk includes SIP AT0, SIP PRA and SIP IP trunks. A SIP trunk is established on an IP link and connects a PBX and an IMS. - E1R2 trunk: An E1R2 trunk is connected to a VE1 interface. The E1R2 trunk is usually used to connect two PBXs. If the remote device uses R2 signaling, use the E1R2 trunk to connect to the AR to the remote device. (Note: V200R002C00 and later versions support the E1R2 trunk.) - H323 trunk: An H323 trunk is established on an IP link and connects a PBX and an IMS or PBXs in different areas. (Note: V200R002C01 and later versions support the H323 trunk.) - BRA trunk: A BRA trunk is connected to a BRA interface. It can be used to connect a PBX to the ISDN. (Note: V200R002C02 and later versions support the BRA trunk.)

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.

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