Transmission apparatus and method of multi-service tributaries over rpr
First Claim
1. A data transmission apparatus used in a multiple service ring including at least two nodes coupled to at least one aggregate pipe and at least one tributary, said apparatus comprising:
- a tributary TX framer coupled to said tributaries for converting data received from said tributaries into XP (processing protocol) data packets;
transmission setup module for setting-up information indicating the destination node address and destination tributary for XP packets to be transmitted;
a TX framer for encapsulating said information indicating the destination node address and destination tributary and the XP packets into frames of the multiple service ring and transmitting the same along an aggregate pipe to a downstream neighbor node in the ring;
a RX framer for receiving and deframing data frames of the multiple service ring from a upstream neighbor node along an aggregate pipe to obtain at least a destination node address and XP packets;
transiting module for transiting the frames destined to other nodes to said TX framer so as to forward the frames destined to other nodes to a next node;
a destination tributary determining module for determining a destination tributary of the XP packets for local node; and
a tributary RX framer for converting said XP packets for local node from the RX framer into data of format of local tributary and sending the local tributary data to a corresponding tributary determined by said destination tributary determining module.
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Accused Products
Abstract
The present invention relates to technology located in RPR MAC Client presents MSR Based on RPR including RPR Lite. 802.17 lite uses local addresses and the multicast address in providing of tributary services and uses 802.17 frame format that allows Technology to use payload within Technology Ethertype. Fairness A0 provisioned traffic (and subsequently no fairness) is all that is required to provide Technology. This invention is only used in configurations where tributary service is managed such that over provisioning does not occur. Architecturally, single-ring, the link, broadcast and pseudo-mesh topologies are provided also. The applications used to this technology are used to provide tributary transparent transport with various existing data networks and services (e.g. Ethernet, FR, ATM, ISDN, DDN, G.702 etc), tributary based bandwidth management with symmetry and asymmetry (e.g. bandwidth limitation and tributary bundling), tributary based 1+1, 1:1 and 1:N protection within 50 ms, tributary based multicast, tributary based security application (e.g. line-speed filtering), tributary based performance monitoring in the 15-minute and 24-hour, and is also used to provide forwarding of XP data link frames (also being a tributary) similar to functionality found in a more complex routing data system. This invention is connection based and pre-plan solution, tributary bandwidth is programmable by network management system, or initiated by end user according to customer needs and payment. The way of the bandwidth allocation is changed from the fixed to dynamic.
38 Citations
32 Claims
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1. A data transmission apparatus used in a multiple service ring including at least two nodes coupled to at least one aggregate pipe and at least one tributary, said apparatus comprising:
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a tributary TX framer coupled to said tributaries for converting data received from said tributaries into XP (processing protocol) data packets;
transmission setup module for setting-up information indicating the destination node address and destination tributary for XP packets to be transmitted;
a TX framer for encapsulating said information indicating the destination node address and destination tributary and the XP packets into frames of the multiple service ring and transmitting the same along an aggregate pipe to a downstream neighbor node in the ring;
a RX framer for receiving and deframing data frames of the multiple service ring from a upstream neighbor node along an aggregate pipe to obtain at least a destination node address and XP packets;
transiting module for transiting the frames destined to other nodes to said TX framer so as to forward the frames destined to other nodes to a next node;
a destination tributary determining module for determining a destination tributary of the XP packets for local node; and
a tributary RX framer for converting said XP packets for local node from the RX framer into data of format of local tributary and sending the local tributary data to a corresponding tributary determined by said destination tributary determining module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 26)
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17. A data transmission method used in a multiple service ring including at least two nodes coupled to at least one aggregate pipe and at least one tributary, said apparatus comprising:
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receiving data from a tributary and converting the received data into XP (processing protocol) data packets;
setting-up information indicating the destination node address and destination tributary for XP packets to be transmitted;
encapsulating said information indicating the destination node address and destination tributary and the XP packets into frames of the multiple service ring and transmitting the same along an aggregate pipe to a downstream neighbor node in the ring;
receiving and deframing data frames of the multiple service ring from a upstream neighbor node along an aggregate pipe to obtain at least a destination node address and XP packets;
transiting the frames destined to other nodes so as to forward the frames destined to other nodes to a next node;
determining a destination tributary of the XP packets for local node; and
converting said XP packets for local node into data of format of local tributary and sending the local tributary data to a corresponding tributary determined by said destination tributary determining step. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32)
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Specification