Bandwidth advertisement model for shared mesh protection

摘要

Methods and nodes are disclosed. In the methods, circuitry of a first node generates a link state advertising message including bandwidth information indicative of unreserved aggregate bandwidth for multiple priority connections where aggregate bandwidth is greater than available bandwidth. The link state advertising message is transmitted from the first node to a plurality of second nodes within a mesh network. Node bandwidth constraints may be established that contain some designated allocated bandwidth which is not shared with any other Class Types (CT); however, the bandwidth constraints may also allow segregation of other CTs so that within those CTs allocation of designated bandwidth is guaranteed for high priority traffic and low priority traffic is left with the remaining bandwidth in the CT's allocation.

主权项

1. A method comprising the steps of:
generating, by circuitry of a first node, a link state advertising message including bandwidth information indicative of unreserved bandwidth for a protecting connection supported by an interface of the first node, wherein the bandwidth information of the link state advertising message includes an aggregate bandwidth of a link available for the protecting connection, the aggregate bandwidth being based on an available bandwidth of the link and an over-subscription factor such that the aggregate bandwidth exceeds the available bandwidth, the over-subscription factor being based on a number of users sharing a unit of the available bandwidth; and transmitting the link state advertising message from the first node to second nodes within a mesh network.