CN105933406A - Equipment processing method and system of Ethernet packet mutual conversion of XGE and GE - Google Patents
Equipment processing method and system of Ethernet packet mutual conversion of XGE and GE Download PDFInfo
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- CN105933406A CN105933406A CN201610247909.6A CN201610247909A CN105933406A CN 105933406 A CN105933406 A CN 105933406A CN 201610247909 A CN201610247909 A CN 201610247909A CN 105933406 A CN105933406 A CN 105933406A
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- xge
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
- H04L12/4645—Details on frame tagging
- H04L12/4666—Operational details on the addition or the stripping of a tag in a frame, e.g. at a provider edge node
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention discloses an equipment processing method and system of the Ethernet packet mutual conversion of XGE and GE, relating to the field of XGE and GE Ethernet packet mutual conversion. The method comprises the steps of (A) distinguishing the port of an XGE data packet according to the VLAN TAG of the an XGE data packet, stripping the VLAN TAG of the XGE data packet with the same port of the GE interface, and buffering the data packet to the asynchronous FIFO corresponding to the GE interface, and forming a 8-bit data GE data packet after the asynchronous FIFO carries out parallel and series conversion and clock domain crossing on the buffered XGE data packet, and (B) adding a corresponding VLAN TAG to the GE data packet outputted by each GE interface and then carrying out series and parallel conversion to obtain 64-bit data, and forming a 64-bit data XGE data packet after the asynchronous FIFO corresponding to each GE interface carries out buffering and carrying out clock domain crossing of the 64-bit data. According to the invention, the functions of a service board can be simplified, the centralized processing of a cross plate is realized, and the cost of the service board is saved.
Description
Technical field
The present invention relates to XGE (ten thousand mbit ethernets) and GE (Gigabit Ethernet, gigabit
Ethernet) Ethernet bag conversion art, it is specifically related to a kind of at PTN (Packet Transport
Network, Packet Transport Network) and IPRAN (IP Radio Access Network wireless connects
Networking IPization) in equipment, equipment processing method that the Ethernet bag of XGE Yu GE turns mutually and
System.
Background technology
For supporting the exchange chip of the ethernet feature of channelizing, when multichannel GE data
When bag converges the XGE interface of the business board accessing to optical network device, business board only needs
Subport (subport, the virtual port) vlan of exchange chip identification to be stamped, exchanges core
Subport just can be carried out Business Processing as real physical port by sheet.
The general panel side of business board uses GE interface, and backboard side uses XGE interface, for
The centralization realizing Cross Trade while simplifying business board function processes, and saves business board
The cost of card, business board domestic demand will be by the Ethernet data bag of GE interface Yu XGE interface
Mutually change.But, the most not yet occur the ether of GE interface Yu XGE interface
The method that network data bag is mutually changed.
Summary of the invention
For defect present in prior art, present invention solves the technical problem that into: simplify industry
The function of business board, it is achieved the centralization of Cross Trade processes, saves the cost of business board.
For reaching object above, the Ethernet bag of XGE Yu GE that the present invention provides turns mutually
Equipment processing method, applies in PTN and IPRAN equipment, and the method comprises the following steps:
A, 64 XGE packets are converted into 8 GE packets: according to XGE number
VLAN TAG according to bag distinguishes the port of XGE packet, will be with GE interface same port
XGE packet peel off after VLAN TAG, caching is to the most corresponding with GE interface asynchronous
In FIFO, corresponding 1 asynchronous FIFO of each GE interface；The asynchronous FIFO XGE to caching
After packet carries out parallel-serial conversion and cross clock domain, form the GE packet of 8 bit data；
B, 8 GE packets are converted into 64 XGE packets: connect for each GE
It is 64 that the GE packet of mouth output carries out serioparallel exchange after adding corresponding VLAN TAG
Data；64 bit data are carried out caching, going forward side by side by the asynchronous FIFO corresponding with each GE interface
After row cross clock domain, form the XGE packet of 64 bit data.
On the basis of technique scheme, the clock zone of described XGE packet is
156.25MHZ, the clock zone of described GE packet is 125MHZ.
On the basis of technique scheme, further comprising the steps of after step A: asynchronous
FIFO output GE packet is to corresponding GE interface.
On the basis of technique scheme, further comprising the steps of after step B: to pass through
The mode of poll, takes out XGE packet from each asynchronous FIFO and sends to XGE interface.
The Ethernet bag of the kind XGE based on said method that the present invention provides and GE turns mutually
Equipment processing system, this system includes the asynchronous FIFO identical with GE interface quantity, setting
GE packet modular converter on XGE interface and be respectively arranged at each GE and connect
XGE packet modular converter on mouth；
GE packet modular converter is used for: distinguish according to the VLAN TAG of XGE packet
The port of XGE packet, peels off VLAN by the XGE packet with GE interface same port
After TAG, in caching to the asynchronous FIFO corresponding with GE interface；
XGE packet modular converter is used for: the GE packet for the output of current GE interface adds
Carrying out serioparallel exchange after adding the VLAN TAG of correspondence is 64 bit data, 64 bit data is delayed
Deposit as in asynchronous FIFO corresponding to current GE interface；
Asynchronous FIFO is used for: the XGE packet of caching is carried out parallel-serial conversion and across clock
Behind territory, form the GE packet of 8 bit data；64 bit data of caching are carried out across clock
Behind territory, form the XGE packet of 64 bit data.
On the basis of technique scheme, described asynchronous FIFO specifically for: to caching
Clock zone is after the XGE packet of 156.25MHZ carries out parallel-serial conversion and cross clock domain, shape
The GE packet of 8 bit data becoming clock zone to be 125MHZ；To the clock zone of caching it is
After 64 bit data of 125MHZ carry out cross clock domain, forming clock zone is 156.25MHZ's
The XGE packet of 64 bit data.
On the basis of technique scheme, described asynchronous FIFO forms the GE of 8 bit data
After packet, it is additionally operable to: output GE packet is to corresponding GE interface.
On the basis of technique scheme, this system also includes state machine poller module, and it is used
In: after each asynchronous FIFO forms the XGE packet of 64 bit data, by poll
Mode, takes out XGE packet from each asynchronous FIFO and sends to XGE interface.
On the basis of technique scheme, described XGE packet modular converter and asynchronous
The quantity of FIFO is 8.
Compared with prior art, it is an advantage of the current invention that:
The present invention by the identification of VLAN TAG, 64 with the serioparallel exchange of 8 bit data and
Parallel-serial conversion and the cross clock domain of asynchronous FIFO, it is possible to realize 64 XGE packets
Mutual conversion with 8 GE packets.
In view of this, the present invention can be while simplifying the function of business board, it is achieved intersects
The centralization of dish processes, and then saves the cost of business board.
Accompanying drawing explanation
Fig. 1 is that the equipment that the Ethernet bag of XGE Yu GE in the embodiment of the present invention turns mutually processes
The design frame chart of method；
Fig. 2 is 64 XGE being under 156.25MHZ clock zone in the embodiment of the present invention
The fundamental diagram of 8 GE packets that packet is converted under 125MHZ clock zone；
Fig. 3 is 8 the GE data being under 125MHZ clock zone in the embodiment of the present invention
The fundamental diagram of 64 XGE packets that bag is converted under 156.25MHZ clock zone.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
The equipment processing method that the Ethernet bag of XGE Yu GE in the embodiment of the present invention turns mutually,
Apply in PTN and IPRAN equipment.Shown in Figure 1, the equipment process side of the present invention
Method is divided into two parts: 64 XGE numbers that (1) will be under 156.25MHZ clock zone
8 the GE packets being converted under 125MHZ clock zone according to bag；(2) 125MHZ will be in
64 XGE that 8 GE packets under clock zone are converted under 156.25MHZ clock zone
Packet.
(1) be under 156.25MHZ clock zone 64 XGE packets are converted into
8 GE packets under 125MHZ clock zone.
Shown in Figure 2, according to VLAN TAG (Virtual Local Area Network tag,
Virtual local area network tags) distinguish XGE packet port, will be with GE interface same port
XGE packet peel off after VLAN TAG, caching is to the most corresponding with GE interface asynchronous
In FIFO (First Input First Output, asynchronous First Input First Output), each GE connects
Corresponding 1 asynchronous FIFO of mouth；In the present embodiment, the interface for GE is 8 (GE0～GE 7),
The quantity of corresponding asynchronous FIFO is also 8 (FIFO_0～FIFO_7).Asynchronous FIFO
The XGE packet of caching is carried out and go here and there (and turn string) be converted to 8 bit data, carry out across
After clock zone is 125MHZ, form the GE packet of 8 bit data；Asynchronous FIFO exports
GE packet is to GE interface.
(2) be under 125MHZ clock zone 8 GE packets are converted into
64 XGE packets under 156.25MHZ clock zone.
Shown in Figure 3, the GE packet for the output of each GE interface adds correspondence
Carrying out serioparallel exchange after VLAN TAG is 64 bit data, and corresponding with each GE interface is different
64 bit data are carried out caching and carry out after cross clock domain is 156.25MHZ by step FIFO,
Form the XGE packet of 64 bit data.State machine module is by the way of poll, from each
Asynchronous FIFO takes out XGE packet and sends to XGE interface.
The Ethernet bag of XGE and the GE based on said method in the embodiment of the present invention turns mutually
Equipment processing system, identical with the description in claims, do not repeat at this.
The present invention is not limited to above-mentioned embodiment, for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications,
Within these improvements and modifications are also considered as protection scope of the present invention.This specification is not made in detail
The content described belongs to prior art known to professional and technical personnel in the field.
Claims (9)
1. the equipment processing method that the Ethernet bag of XGE Yu GE turns mutually, applies
In PTN and IPRAN equipment, it is characterised in that: the method comprises the following steps:
A, 64 XGE packets are converted into 8 GE packets: according to XGE number
VLAN TAG according to bag distinguishes the port of XGE packet, will be with GE interface same port
XGE packet peel off after VLAN TAG, caching is to the most corresponding with GE interface asynchronous
In FIFO, corresponding 1 asynchronous FIFO of each GE interface；The asynchronous FIFO XGE to caching
After packet carries out parallel-serial conversion and cross clock domain, form the GE packet of 8 bit data；
B, 8 GE packets are converted into 64 XGE packets: connect for each GE
It is 64 that the GE packet of mouth output carries out serioparallel exchange after adding corresponding VLAN TAG
Data；64 bit data are carried out caching, going forward side by side by the asynchronous FIFO corresponding with each GE interface
After row cross clock domain, form the XGE packet of 64 bit data.
2. the equipment that the Ethernet bag of XGE Yu GE as claimed in claim 1 turns mutually processes
Method, it is characterised in that: the clock zone of described XGE packet is 156.25MHZ, described
The clock zone of GE packet is 125MHZ.
3. the equipment that the Ethernet bag of XGE Yu GE as claimed in claim 1 or 2 turns mutually
Processing method, it is characterised in that: further comprising the steps of after step A: asynchronous FIFO is defeated
Go out GE packet to corresponding GE interface.
4. the equipment that the Ethernet bag of XGE Yu GE as claimed in claim 1 or 2 turns mutually
Processing method, it is characterised in that: further comprising the steps of after step B: by poll
Mode, takes out XGE packet from each asynchronous FIFO and sends to XGE interface.
5. the Ethernet bag of XGE with GE based on method described in claim 1 turns mutually
Equipment processing system, it is characterised in that: this system includes identical with GE interface quantity different
Walk FIFO, the GE packet modular converter being arranged on XGE interface and be respectively provided with
XGE packet modular converter on each GE interface；
GE packet modular converter is used for: distinguish according to the VLAN TAG of XGE packet
The port of XGE packet, peels off VLAN by the XGE packet with GE interface same port
After TAG, in caching to the asynchronous FIFO corresponding with GE interface；
XGE packet modular converter is used for: the GE packet for the output of current GE interface adds
Carrying out serioparallel exchange after adding the VLAN TAG of correspondence is 64 bit data, 64 bit data is delayed
Deposit as in asynchronous FIFO corresponding to current GE interface；
Asynchronous FIFO is used for: the XGE packet of caching is carried out parallel-serial conversion and across clock
Behind territory, form the GE packet of 8 bit data；64 bit data of caching are carried out across clock
Behind territory, form the XGE packet of 64 bit data.
6. the equipment that the Ethernet bag of XGE Yu GE as claimed in claim 5 turns mutually processes
System, it is characterised in that described asynchronous FIFO specifically for: to caching clock zone be
After the XGE packet of 156.25MHZ carries out parallel-serial conversion and cross clock domain, form clock zone
GE packet for 8 bit data of 125MHZ；Clock zone to caching is 125MHZ
64 bit data carry out cross clock domain after, form 64 figure places that clock zone is 156.25MHZ
According to XGE packet.
7. the equipment that the Ethernet bag of XGE Yu GE as claimed in claim 5 turns mutually processes
System, it is characterised in that: after described asynchronous FIFO forms the GE packet of 8 bit data,
It is additionally operable to: output GE packet is to corresponding GE interface.
8. the equipment that the Ethernet bag of XGE Yu GE as claimed in claim 5 turns mutually processes
System, it is characterised in that: this system also includes state machine poller module, and it is used for: each
After asynchronous FIFO forms the XGE packet of 64 bit data, by the way of poll, from often
Individual asynchronous FIFO takes out XGE packet and sends to XGE interface.
9. the Ethernet bag of XGE with GE as described in any one of claim 5 to 8 turns mutually
Equipment processing system, it is characterised in that: described XGE packet modular converter and asynchronous FIFO
Quantity be 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610247909.6A CN105933406A (en) | 2016-04-20 | 2016-04-20 | Equipment processing method and system of Ethernet packet mutual conversion of XGE and GE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610247909.6A CN105933406A (en) | 2016-04-20 | 2016-04-20 | Equipment processing method and system of Ethernet packet mutual conversion of XGE and GE |
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| CN105933406A true CN105933406A (en) | 2016-09-07 |
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| CN201610247909.6A Pending CN105933406A (en) | 2016-04-20 | 2016-04-20 | Equipment processing method and system of Ethernet packet mutual conversion of XGE and GE |
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Cited By (1)
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Application publication date: 20160907 |