System and method for SONET NSAP addressing
First Claim
1. A synchronous optical network (SONET) system having multi-hierarchal network service access point (NSAP) addressing, the system comprising:
- a plurality of network elements (NEs) electrically linked, wherein the NEs comprise devices having respective NSAP addresses and at least one of the NEs is a network controller that controls the SONET; and
a first level routing area and a second level routing area that each comprise at least one NE, wherein the first level routing area and the second level routing area are based on a predetermined prioritization of the NEs as first level NEs and second level NEs, and having a first level routing and having a second level routing for the NSAP addresses, respectively;
wherein each NSAP address has an RDI field filled with the first two octets of a respective Internet protocol (IP) address, and an Area field filled with the last two octets of the respective IP address.
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Accused Products
Abstract
A synchronous optical network (SONET) system having multi-hierarchal network service access point (NSAP) addressing includes a plurality of network elements (NEs) electrically linked, and a first level routing area and a second level routing area that each includes at least one NE. The NEs include devices having respective NSAP addresses and at least one of the NEs is a network controller that controls the SONET. The first level routing area and the second level routing area are based on a predetermined prioritization of the NEs as first level NEs and second level NEs, and have a first level routing and have a second level routing for the NSAP addresses, respectively, and each of the areas is capable of having at least 151 NEs.
103 Citations
14 Claims
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1. A synchronous optical network (SONET) system having multi-hierarchal network service access point (NSAP) addressing, the system comprising:
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a plurality of network elements (NEs) electrically linked, wherein the NEs comprise devices having respective NSAP addresses and at least one of the NEs is a network controller that controls the SONET; and a first level routing area and a second level routing area that each comprise at least one NE, wherein the first level routing area and the second level routing area are based on a predetermined prioritization of the NEs as first level NEs and second level NEs, and having a first level routing and having a second level routing for the NSAP addresses, respectively; wherein each NSAP address has an RDI field filled with the first two octets of a respective Internet protocol (IP) address, and an Area field filled with the last two octets of the respective IP address. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of generating a multi-hierarchal synchronous optical network (SONET) having network service access point (NSAP) addresses, the method comprising:
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electrically linking a plurality of network elements (NEs) to form a plurality of areas that comprise at least one NE, wherein the NEs comprise devices having respective NSAP addresses and at least one of the NEs is a network controller that controls the SONET; and generating a prioritization for the NSAP addresses as having a first level routing and as having a second level routing and defining the areas as a first level routing area and a second level routing area, respectively, based on a predetermined prioritization of the NEs as first level NEs and second level NEs, respectively; wherein each NSAP address has an RDI field filled with the first two octets of a respective Internet protocol (IP) address, and an Area field filled with the last two octets of the respective IP address. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A multi-hierarchal synchronous optical network (SONET) network, the network comprising:
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a plurality of network elements (NEs) electrically linked, wherein the NEs comprise devices having respective network service access point (NSAP) addresses and at least one of the NEs is a network controller that controls the SONET; and a first level routing area and a second level routing area that each comprise at least one NE, wherein the first level routing area and the second level routing area are based on a predetermined prioritization of the NEs as first level NEs and second level NEs, and having a first level routing and having a second level routing for the NSAP addresses, respectively, the first level routing provides intra-area connectivity and communication between respective first level and second level NEs within each one of the areas, and the second level routing provides connectivity and communication between second level NEs in the areas and between second level NEs within each one of the areas, and the NE that controls the SONET is a second level NE, and at least one other of the second level NEs is a backup controller; wherein each NSAP address has an RDI field filled with the first two octets of a respective Internet protocol (IP) address, and an Area field filled with the last two octets of the respective IP address.
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Specification