Host route convergence based on sequence values

摘要

In an example embodiment, a method is provided that assigns a sequence value to a host. The host is identified by a host network layer address. After the assignment, the host network layer address and the sequence value are included in an advertisement for transmission. In another example embodiment, another method is provided. Here, a first sequence value associated with the host network layer address is received from a network device. In addition, a second sequence value associated with the same host network layer address is received from a different network device. The first sequence value is ranked relative to the second sequence value and data is transmitted to the network device based on the ranking.

主权项

1. A method at a network device, the method comprising:
at a network switch:
receiving a previous advertisement including a host network layer address of a host and an existing sequence value associated with the host network layer address;after the receiving, detecting that the host is associated with the network switch, the host being a device or a program application that provides a service;generating a sequence value at the network switch based on the detecting, the generating including changing the received existing sequence value to a next sequential value that represents the sequence value;associating the sequence value with the host network layer address of the host; andtransmitting an advertisement to a different network switch, the advertisement including the host network layer address and the sequence value.