Method for improving fair bandwidth utilization rate under single point blockage of elastic packet loop
A technology of elastic packet ring and utilization rate, which is applied in the field of network communication, can solve the problems of idle blocking degree, reduce double-ring bandwidth utilization rate, different blocking degree, etc., and achieve the effect of increasing available bandwidth
Inactive Publication Date: 2009-09-23
NANJING ZHONGXING XIN SOFTWARE CO LTD
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The degree of blockage of the two rings may be different, but the currently published technology considers the two rings of the RPR ring independently, and does not fully consider the relationship between them. Regardless of the degree of blockage of ring 0, all the above The fair business of ring 0 must go through ring 0 when there is no protection switching, which makes ring 0 heavy, but the business of the upper ring is less
When ring 0 is blocked, ring 1 may be relatively free or less blocked
Therefore, according to the existing control method, the usage rate of the dual-ring bandwidth is reduced
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0036] Embodiment 1 The fair values received at point A are FD0 and FG1.
[0037] Step 1, FD0=20%×FD0, indicating that ring 0 is more blocked than ring 1.
[0038] Step 2: Calculate the distance d=3 between point A and blocking point D according to the TTL value.
[0039] Step 3, read the total number of stations on the ring t=7;
[0040] Step 4, 3>=40%×t established;
[0041] Step 5: The fair service on ring 0 at point A is transferred to ring 1 for transmission. like image 3 shown.
Embodiment 2
[0042] Embodiment 2 The fair values received by point C are FD0 and FG1.
[0043] Step 1, FD0=20%×FD0, indicating that ring 0 is more blocked than ring 1.
[0044] Step 2: Calculate the distance d=1 between point C and blocking point D according to the TTL value.
[0045] Step 3, read the total number of stations on the ring T=7;
[0046] Step 4, 1>=40%×T is not established, skip to step 6;
[0047] Step 6: The fair service on ring 0 at point C is still sent on ring 0 according to the rules of the 802.17 standard, which is not within the range of the speed limit of this technology.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for improving the utilization rate of fair bandwidth in the case of single-point blockage in an elastic packet ring. The method is as follows: station k on the ring receives fair control frames sent by stations i and j where single-point blockage occurs, Simultaneously extract and compare the fair control values on ring 0 and ring 1 of sites i and j, if the difference between the two smaller fair values of sites i and j is greater than or equal to X%, and the site k is far from the ring 0 blocking point The number of hops is greater than or equal to Y% of the total number of stations on the ring, then the fair service on ring 0 of station k is sent to ring 1; where 1≤X≤99, 1≤Y≤99. In the present invention, by transferring the fair service on ring 0 to ring 1 for transmission, the surplus bandwidth on ring 1 can be fully utilized when single-point congestion occurs, and the sharing of fair bandwidth resources between two rings can be realized, and the actual availability of fair services can be improved. Use bandwidth.
Description
technical field [0001] The invention relates to the technical field of network communication, in particular to a method for improving dual-ring fair bandwidth utilization by using a fair control protocol in an elastic packet ring network. Background technique [0002] Resilient Packet Ring (RPR: Resilient Packet Ring) technology is a new media access control (MAC: Material Access Control) layer protocol that optimizes data service transmission on a ring structure, and can adapt to multiple physical layers (such as SDH: Synchronous Digital Hierarchy (Synchronous Digital System), Ethernet, DWDM: Dense Wavelength-division Multiplexing (Dense Wavelength Division Multiplexing), etc.), can effectively transmit data, voice, image and other business types. [0003] The core basis of RPR is Ethernet technology, and the basic data unit it deals with is packet data packet. Similar to the physical structure of Fiber Distributed Data Interface (FDDI: Fiber Distributed Data Interface), R...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/42H04L12/56H04L29/06
Inventor 辜光辉曾涛朱召胜詹双平刘博
Owner NANJING ZHONGXING XIN SOFTWARE CO LTD