Method and apparatus for conveying optical fibre channel service
A technology for fiber channel and service transmission, applied in the field of optical communication, it can solve the problems of transparent transmission of packet switching network, unsuitable fiber channel service, and inability to fiber channel service, etc., and achieve the effect of simplifying the processing process.
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Embodiment 1
[0082] see Figure 5 , Figure 6 and Figure 7 , the specific steps for the FC service to be transmitted on the packet transport network MPLS are as follows:
[0083] Step 101: The FC service sending end sends the FC service to its corresponding FC physical interface.
[0084] Step 102: The FC physical interface receives the FC service, and performs interface negotiation and remote flow control processing on the FC service.
[0085] Step 103: Perform 64B / 65B encoding processing on the processed FC service to form a 64B / 65B encoding block, perform GFP encapsulation on the 64B / 65B encoding block to form a GFP frame, and map the GFP frame to the transparent encapsulation encoding block.
[0086] Step 104: Add an MPLS label to the transparent encapsulation coding block to form an MPLS frame.
[0087] Because it is transmitted on the MPLS packet network, and the MPLS network uses a label switching path to identify a packet transmission channel, it is necessary to add an MPLS la...
Embodiment 2
[0096] see Figure 8 and Figure 9 , the GFP frame of the transparent transmission FC service is mapped to the Ethernet payload frame by frame, so there is no need to process the core frame header and the payload frame header, and the 64B / 65B encoding block is directly mapped to the Ethernet payload, so that The specific steps for FC services to be transmitted on the packet transport network MPLS are as follows:
[0097] Step 201: The FC service sending end sends the FC service to its corresponding FC physical interface.
[0098] Step 202: The FC physical interface receives the FC service, and performs interface negotiation and remote flow control processing on the FC service.
[0099] Step 203: Perform 64B / 65B encoding processing on the processed FC physical layer signal to form a 64B / 65B encoding block, and map the 64B / 65B encoding block to a transparent encapsulation encoding block.
[0100] Step 204: Add an MPLS label to the transparent encapsulation coding block to form ...
Embodiment 3
[0110] see Figure 5 and Figure 10 , the method of the present invention is also applicable to the multiplexing of multiple FC services to MPLS channels. When multiple channels of FC services are jointly mapped to a transmission channel for transmission in the packet network, in order to ensure that the services of each channel are effectively isolated during transmission, it is necessary to identify each channel of FC services. When performing GFP encapsulation on FC services, the channel identification of multi-channel FC services can be realized by enriching the overhead in the GFP format. Specifically, the following two methods can be used:
[0111] 1. Set the extension field EXI in the payload frame header to 001, ie EXI=001. The format of the GFP frame payload frame header is shown in Table 1 below.
[0112]
[0113] Table 1
[0114] 2. Use the payload length to indicate the PLI field.
[0115] Since the GFP frame is mapped to the MPLS transmission channel by a...
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