PACKET DATA UNIT (PDU) STRUCTURE FOR SUPPORTING DISTRIBUTED RELAY CONTROL PROTOCOL (DRCP)

摘要

A method supporting distributed resilient network interconnect (DRNI) in a link aggregation group at a network device is disclosed. The method starts with encapsulating a distributed relay control protocol data unit (DRCPDU) in a frame, wherein the DRCPDU includes a protocol data unit (PDU) structure. The PDU structure includes a type field indicating that the DRCPDU is for DRCP, a version field indicating a version number of the DRCP, and a set of type/length/values (TLVs) including: a terminator TLV indicating an end of the PDU structure, a portal information TLV indicating characteristics of the first portal, a portal configuration information TLV indicating configuration information of the first portal, a DRCP state TLV indicating variables associated with an intra-portal link (IPP), a home ports information TLV and a neighbor ports information TLV. The method continues with transmitting the frame encapsulating the DRCPDU from the network device to a neighbor network device.

主权项

1. A method supporting a distributed resilient network interconnect (DRNI) at a network device, wherein the network device and a neighbor network device are included in a portal of a link aggregation group (LAG), wherein the network device is coupled to the neighbor network device via an intra-portal port (IPP), the method comprising:
encapsulating a distributed relay control protocol data unit (DRCPDU) in a frame, wherein the DRCPDU includes a protocol data unit (PDU) structure, including:
a type field indicating that the DRCPDU is for DRCP,a version field indicating a version number of the DRCP, anda set of type/length/values (TLVs) including:
a terminator TLV indicating an end of the PDU structure,a portal information TLV indicating characteristics of the portal,a portal configuration information TLV indicating configuration information of the portal,a DRCP state TLV indicating variables associated with the IPP,a home ports information TLV indicating a current status of the network device, anda neighbor ports information TLV indicating a current status of the neighbor network device; and transmitting the frame encapsulating the DRCPDU from the network device to the neighbor network device via the IPP.