Method and device for transmitting service quality information in QinQ Metro Ethernet

A service quality information, Ethernet technology, applied in the QinQ metro Ethernet field, can solve the problem that the service quality of the message cannot be unified and guaranteed.

Active Publication Date: 2009-12-30
ZTE CORP
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  • Application Information

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Problems solved by technology

If there is no clear definition of PCP generation rules, there is no way to

Method used

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  • Method and device for transmitting service quality information in QinQ Metro Ethernet
  • Method and device for transmitting service quality information in QinQ Metro Ethernet
  • Method and device for transmitting service quality information in QinQ Metro Ethernet

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Embodiment Construction

[0027] Below, refer to the attached Figure 1~4 The method and device for transmitting QoS information in QinQ Metro Ethernet of the present invention are described in detail.

[0028] Step 100: In the NNI egress direction of the PE node, generate the priority code point (Priority Code Point, PCP) domain and DE domain of S-VLAN:

[0029] Wherein, in step 100, when the operator trusts the priority of the information entering from the UNI port, the User Priority domain (User Priority) and the Canonical Format Indicator (Canonical Format Indicator, CFI) The domain is copied to the PCP domain and DE domain of the S-VLAN to generate the PCP domain and DE domain of the S-VLAN. Among them, S-VLAN and CE-VLAN transmit the same Qos information.

[0030] In addition, in step 100, when the operator does not trust the priority of the information entering from the UNI port, according to the pre-configured Qos information and the pre-configured Qos level and PCP mapping relationship (see ...

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Abstract

The invention provides a method and a device for transmitting service quality information in a QinQ Metro Ethernet. The method comprises the following steps: A, creating a PCP domain and a DE domain of a S-VLAN in the direction of an NNI output port of a PE node, acquiring the VLAN_ID of S-VLAN according to the mapping relationship between a flow domain and S-VLAN tag, generating S-VLAN information according to the created PCP domain and the created DE domain at last, and adding the S-VLAN information to the position of an outer layer VLAN of a message; and B, acquiring information on the flow domain in the direction of the NNI input port of a P node or the PE node according to the mapping relationship between the flow domain and the S-VLAN tag, determining a Qos grade and color mark of a service flow by using the PCP domain and the DE domain of the S-VLAN, sending the message to a designated scheduling queue and forwarding the message at the PE node. The method and the device can allow the message to ensure uniform Qos information during transmission.

Description

technical field [0001] The invention relates to the technical field of QinQ metropolitan Ethernet, in particular to a method and device for transmitting quality of service information in QinQ metropolitan Ethernet. Background technique [0002] At present, Metro Ethernet is widely deployed in carrier networks, and there are great limitations in identifying customer services using traditional 802.1Q virtual local area network (Virtual Local Area Network, VLAN). There are only 12 VLAN tag domains defined in IEEE 802.3. One bit can only identify 4096 customer services at most, which is far from enough for Metro Ethernet applications. In this case, QinQ technology emerges as the times require. [0003] QinQ technology expands the number of original 802.1Q VLANs, and adds another layer of VLANs on the basis of the original layer of 802.1Q VLANs. The two layers of VLAN tags can reach a 24-bit tag domain, which can fully meet market demand. ; At the same time, with the development...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/46H04L12/56H04L12/863
Inventor 王庆东
Owner ZTE CORP
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