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ODYflex lossless regulation capacity route flooding method, device and node

A capability and node technology, applied in the field of devices and nodes, ODUflex non-destructive adjustment capability routing flooding method

Active Publication Date: 2012-07-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the control plane or management plane cannot make non-destructive adjustment decisions

Method used

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  • ODYflex lossless regulation capacity route flooding method, device and node
  • ODYflex lossless regulation capacity route flooding method, device and node
  • ODYflex lossless regulation capacity route flooding method, device and node

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] figure 2 It is a specific schematic diagram of the sub-TLV in the case that the link port information is an IPv4 address identifier, and the definitions of each field in the sub-TLV are as follows:

[0048] Type (Type) field (16 bits): describes the sub-TLV type. By carrying a fixed type value in the Type field, it is used to indicate that the type of this sub-TLV is to identify whether the link supports the ODUflex lossless adjustment capability.

[0049] Length (Length) field (16 bits): information about the length of the Value field. This includes the sum of the lengths of all IPv4 addresses on the corresponding link ports, the length of the identification bit information indicating whether the link supports the ODUflex lossless adjustment capability, and the length of reserved bits.

[0050] Sub-type (Sub-Type) field (8 bits): used to distinguish different identifier types of link ports, such as IPv4 address, IPv6 address, or interface identifier. The sub-Type h...

Embodiment 2

[0056] image 3 It is a specific schematic diagram of the sub-TLV in the case that the link port information is an IPv6 address identifier, and the definitions of each field in the sub-TLV are as follows:

[0057] Type (Type) field (16 bits): describes the sub-TLV type. The function and assignment are the same as the Type field in Embodiment 1.

[0058] Length (Length) field (16 bits): information about the length of the Value field. This includes the sum of the lengths of all IPv6 addresses on the corresponding link ports, plus the length of the identification bit information indicating whether the link supports the ODUflex lossless adjustment capability and the length of reserved bits.

[0059] Sub-type (Sub-Type) field (8bits): used to distinguish different identifier types of link ports, which is the same as the sub-Type field in Embodiment 1, where the sub-Type identifies the chain by information carrying a fixed type value The road port has the address type of IPv6. ...

Embodiment 3

[0066] Figure 4 It is a specific schematic diagram of the sub-TLV in the case that the link port information is an interface identifier. At this time, a certain link is uniquely identified through the combination of the Router Address (routing address) TLV and the sub-TLV. Router Address TLV can describe the address information of the advertising router, and is usually used as a loopback address. The definition of each field in sub-TLV is as follows:

[0067] Type (Type) field (16 bits): describes the sub-TLV type. The function and assignment are the same as the Type field in Embodiment 1.

[0068] Length (Length) field (16 bits): information about the length of the Value field. This includes the length of the interface identifier on the corresponding link port, plus the length of the identification bit information identifying whether the link supports the ODUflex lossless adjustment capability and the length of the reserved bit.

[0069] Sub-type (Sub-Type) field (8bits...

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Abstract

The invention discloses an ODYflex lossless regulation capacity route flooding method, device and node, which are used for ensuring the realization of the lossless regulation. The method is suitable for an ODUflex encapsulated by adopting generic framing procedure (GFP), and comprises the step of: when operating a route protocol flooding link attribute, each node in a network carries support information of ODYflex lossless regulation capacity of a link in a region where the current node is in in the link attribute, wherein the support information of the ODYflex lossless regulation capacity of the link is used for determining whether bandwidth lossless regulation can be carried out on the link. By adopting the method, the device and the node, which link can be subjected to lossless regulation can be cleared when the node in the network calculates a path.

Description

technical field [0001] The invention relates to the communication field, in particular to an ODUflex (flexible rate optical digital unit) routing flooding method, device and node for lossless adjustment capability. Background technique [0002] The original OTN (Optical Transport Network, Optical Transport Network) standard only included ODU1 (Optical Data Unit 1, Optical Data Unit 1), ODU2, ODU3 and other three signal types with fixed rates, and the rates were about 2.5Gbps and 10Gbps respectively. and 40Gbps. When client signals are transmitted through the OTN network, a certain amount of bandwidth is wasted. For example: a client FC-400 fiber channel signal, with a rate of about 4Gbps, will occupy an ODU2 channel when it is transmitted through the OTN network, which will cause up to 6G bandwidth waste. Therefore, a new extended ODUflex of OTN signal type has emerged to meet the above requirements. [0003] The emergence of ODUflex is to enable the transmission of clien...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06
CPCH04J2203/0067H04J3/1652H04L12/56H04L29/06
Inventor 王其磊付锡华
Owner ZTE CORP
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