Address ageing method and device

Abstract

The invention provides an address ageing method and device applied to member equipment used as a stack system of a virtual extensible local area network VXLAN tunnel terminal. In the device, a switchchip determines that a port is the MAC address entry ageing of a local port, and generates a local MAC address ageing notification message to send to a processor; the processor generates a MAC addressquery message according to the local MAC address ageing notification message and sends the same to the switch chip; the switch chip sends the generated MAC address query message to other member equipment through a stacking port, and receives a MAC address query response message through the stacking port and sends the same to the processor; the processor determines this equipment as the last service processing equipment according to the MAC address query response message received from other member equipment, and then generates a remote MAC address ageing message and sends the same to the switch chip; the switch chip ensures that the aged MAC addresses of all member equipment of the stack system are notified to other opposite ends by connecting the each opposite end to send the remote MAC address ageing message.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to an address aging method and device. Background technique [0002] Ethernet Virtual Private Network (EVPN) is a Layer 2 Virtual Private Network (Virtual Private Network, VPN) technology. The control plane uses MP-BGP to advertise EVPN routing information, and the data plane can use Layer 2 virtual private network (Virtual Private Network, VPN) protocol messages such as virtual extended local area network (Virtual Extensible Local Area Network, VXLAN). [0003] In the EVPN network, the MAC address learning of the service provider network edge device is divided into local learning (local learning) mode and remote learning (remote learning). [0004] For example, when a VXLAN tunnel endpoint (VXLAN Tunnel EndPoint, VTEP) as an edge device of a service provider network receives a data packet or an ARP packet, it learns based on the source MAC address as a local learning mode. ...

AI Technical Summary

Problems solved by technology

However, there are problems in the existing technology. When the stack system is used as a VTEP, the master device of the stack system performs the processing of the control plane of the stack system. When there is no data flow on the master device, a certain MAC address is When aging, the master device will actively age the MAC address learned remotely by other VTEPs

In order to reduce flooding, the EVPN network prohibits traffic flooding at the VXLAN tunnel port. In this way, the peer VTEP fails to forward such falsely reported aging MAC addresses, resulting in traffic discarding failures.

Images