Method and system for transmitting connectivity fault management messages in ethernet, and a node device
First Claim
1. A method for implementing connectivity fault management (CFM) in a Provider Backbone Transport (PBT) network, comprising:
- receiving, by a receiving node, a connectivity fault management message transmitted from a source node, wherein the connectivity fault management message carries a path identifier and a connection maintenance target address, wherein the path identifier consists of a destination media access control (MAC) address and a virtual local area network identifier (VLAN ID), and wherein the connection maintenance target address is contained in a protocol data unit of the connectivity fault management message;
determining, by a maintenance domain intermediate point (MIP), whether the connection maintenance target address matches an address of the receiving node;
if the connection maintenance target address matches the address of the receiving node, transmitting a connectivity fault management reply message; and
if the connection maintenance target address does not match the address of the receiving node, forwarding the connectivity fault management message to a next hop based on the VLAN ID and the destination MAC address in the path identifier.
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Accused Products
Abstract
A method for transmitting a Connectivity Fault Management (CFM) message of Ethernet includes: receiving a CFM message transmitted from a source node, the CFM message including identifier of a path and a connection maintenance target address; determining whether the connection maintenance target address matches address of a receiving node, and if yes, terminating the CFM message; otherwise forwarding the CFM message to a next hop based upon the path identifier of the path. Another method and a system for transmitting a CFM message of Ethernet, a node for transmitting a CFM message of Ethernet, and a node for receiving a CFM message of Ethernet are also disclosed. With the invention, a CFM message may be forwarded according to information of a Medium Access Control (MAC) address and a Virtual Local Area Network Identifier (VLAN ID) of a path identifier where a monitored service is located, and thus may be forwarded correctly in a Provider Backbone Bridge Traffic Engineering (PBB-TE) network.
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Citations
18 Claims
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1. A method for implementing connectivity fault management (CFM) in a Provider Backbone Transport (PBT) network, comprising:
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receiving, by a receiving node, a connectivity fault management message transmitted from a source node, wherein the connectivity fault management message carries a path identifier and a connection maintenance target address, wherein the path identifier consists of a destination media access control (MAC) address and a virtual local area network identifier (VLAN ID), and wherein the connection maintenance target address is contained in a protocol data unit of the connectivity fault management message; determining, by a maintenance domain intermediate point (MIP), whether the connection maintenance target address matches an address of the receiving node; if the connection maintenance target address matches the address of the receiving node, transmitting a connectivity fault management reply message; and if the connection maintenance target address does not match the address of the receiving node, forwarding the connectivity fault management message to a next hop based on the VLAN ID and the destination MAC address in the path identifier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A receiving node device used in a Provider Backbone Transport (PBT) network, wherein the receiving node device is a maintenance domain intermediate point (MIP), and wherein the MIP comprises:
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a message transceiver, configured to receive a connectivity fault management message transmitted from a source node device; a hardware-implemented address determiner, configured to determine whether a connection maintenance target address in the connectivity fault management message matches an address of the MIP, wherein the connection maintenance target address is contained in a protocol data unit of the connectivity fault management message; and a hardware-implemented connectivity fault management processor, configured to transmit a connectivity fault management reply message if the connection maintenance target address matches the address of the MIP, and to forward the connectivity fault management message received via the message transceiver to a next hop based on a virtual local area network identifier (VLAN ID) and a destination media access control (MAC) address in a path identifier carried in the connectivity fault management message if the connection maintenance target address does not match the address of the MIP. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification