Control method of virtual link discovery and system for fibre channel over ethernet protocol

摘要

A control method of virtual link discovery and a system for Fiber Channel over Ethernet (FCoE) protocol allocates some Ethernet Nodes (ENodes) and FCoE Forwarders (FCFs) to different virtual networks during networking, and provides a Virtual Node (VN) port of each ENode and a Virtual Fiber Channel (VFC) port of each FCF with a Virtual Network Identification (VN ID) of a virtual network to which they belong. In this way, a VN port of an ENode may establish a virtual link with a VFC port that belongs to the same virtual network in preference, so that some ENodes are made to access FCFs that belong to the same virtual networks as the ENodes.

主权项

1. A control method of virtual link discovery in a Fibre Channel over Ethernet (FCoE) protocol system, the method being applied between Ethernet Nodes (E Nodes) and FCoE Forwarders (FCFs), wherein some of the ENodes and the FCFs are allocated to different virtual networks, the control method comprising:
a1: an ENode sending, via a Virtual Node (VN) port of the ENode, an FCoE Initialization Protocol (FIP) Discovery Solicitation message to Virtual Fiber Channel (VFC) ports of the FCFs, the FIP Discovery Solicitation message carrying a virtual network ID (VN ID) of the VN port indicating which virtual network the VN port belongs to; a2: the ENode receiving, via the Virtual Node(VN) port, FIP Discovery Advertisement messages replied by the VFC ports of the FCFs, the FIP Discovery Advertisement messages carrying Virtual Network IDs (VN IDs) of the VFC ports indicating which Virtual Networks the VFC ports respectively belong to; a3: the ENode comparing the Virtual Network (VN ID) of the Virtual Node(VN) port with the VN IDs carried in the FIP Discovery Advertisement messages, and logging the VN node to a VFC port which has the same Virtual Network ID (VN ID) in preference to other VFC ports having different VN IDs, wherein the VN port establishes a virtual link with the VFC port belonging to the same Virtual Network in preference to the other VFC ports belonging to different Virtual Networks.