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Flow label encapsulating method and system

An encapsulation method and flow identification technology, which is applied in the field of communication, can solve problems such as the inability to realize flow identification encapsulation

Inactive Publication Date: 2015-05-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention provides a flow identification encapsulation method and system to at least solve the problem that the above-mentioned OpenFlow switch cannot implement flow identification encapsulation

Method used

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  • Flow label encapsulating method and system

Examples

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Embodiment 1

[0084] In this preferred embodiment, all packets belonging to VLAN 100 (VLAN_ID=100) need to be encapsulated with PW flow labels on Ethernet port 10 (In_Port=10) of the OpenFlow switch.

[0085] combine Figure 4 and Figure 11 As shown, in this preferred embodiment, the OpenFlow controller and the OpenFlow switch in the OpenFlow network will perform the following steps:

[0086] In step 1, the OF-Switch protocol is run between the OpenFlow controller and the OpenFlow switch, and the OpenFlow controller sends the flow table and the function computing function table to the OpenFlow switch.

[0087] Figure 14 is a schematic diagram of the contents of the flow table in the OpenFlow switch according to the preferred embodiment 1 of the present invention, such as Figure 14 As shown, there is only a single-level flow table in the OpenFlow switch, and the flow table contains a flow table entry. The matching field in the flow table entry contains "incoming port 10" and "belongs t...

Embodiment 2

[0091] In this preferred embodiment, it is necessary to complete the encapsulation of the LSP entropy label on all packets on the Ethernet port 20 (In_Port=20) of the OpenFlow switch, and complete the encapsulation of all packets on the Ethernet port 30 (In_Port=30) of the OpenFlow switch Encapsulation of PBB flow filtering tags.

[0092] combine Figure 4 and Figure 11 As shown, in this preferred embodiment, the OpenFlow controller and the OpenFlow switch in the OpenFlow network will perform the following steps:

[0093] In step 1, the OF-Switch protocol is run between the OpenFlow controller and the OpenFlow switch, and the OpenFlow controller sends the flow table and the function computing function table to the OpenFlow switch.

[0094] Figure 16 It is a schematic diagram of the content of the flow table in the OpenFlow switch according to the second preferred embodiment of the present invention, such as Figure 16 As shown, there is only a single-level flow table in ...

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Abstract

Disclosed are an encapsulation method and system for a flow identifier. The encapsulation method for a flow identifier comprises: in the case where flow table matching is successfully conducted on a packet, adding, by an openFlow switch, a flow identifier to the packet; and invoking, by the openFlow switch, a pre-saved function calculation function to assign the flow identifier, so as to complete the encapsulation of the flow identifier. The present invention achieves the effect of enabling an openFlow network node to take a Hash calculation result of some fields of an original packet before encapsulation as the assignment of a new encapsulated flow identifier, which is required by the encapsulation of the flow identifier.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and system for encapsulating a stream identifier. Background technique [0002] In a data communication network, in order to improve the utilization rate of network nodes and network links and reduce the impact of a single node or a single link failure on business traffic, the Equal Cost Multiple Paths (ECMP) technology It is more and more widely used. ECMP technology can divide the traffic of the same source and the same destination, and forward different streams along different transmission paths with equal cost. [0003] In order to implement ECMP, a routing protocol such as Intermediate System to Intermediate System (IS-IS for short) or Open Shortest Path First (OSPF for short) is usually used on the network nodes first. Calculate the forwarding table entry that contains multiple outgoing interfaces at the same time. After the network node receives the packet to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/947H04L12/951H04L47/43
CPCH04L12/4633H04L45/64H04L45/38H04L41/0686H04L41/0816H04L47/2483H04L2212/00
Inventor 肖敏张君辉吴波
Owner ZTE CORP
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