CA2784699A1 - Distributed routing architecture - Google Patents
Distributed routing architecture Download PDFInfo
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- CA2784699A1 CA2784699A1 CA2784699A CA2784699A CA2784699A1 CA 2784699 A1 CA2784699 A1 CA 2784699A1 CA 2784699 A CA2784699 A CA 2784699A CA 2784699 A CA2784699 A CA 2784699A CA 2784699 A1 CA2784699 A1 CA 2784699A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
- H04L45/04—Interdomain routing, e.g. hierarchical routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/30—Routing of multiclass traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/44—Distributed routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/58—Association of routers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/741—Routing in networks with a plurality of addressing schemes, e.g. with both IPv4 and IPv6
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/33—Flow control; Congestion control using forward notification
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/323—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the physical layer [OSI layer 1]
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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
A hierarchical distributed routing architecture including at least three levels, or layers, for receiving, processing and forwarding data packets between network components is provided. The core level router components receive an incoming packet from a network component and identify a distribution level router component based on processing a subset of the destination address associated with the received packet. The distribution level router components that receiving a forwarded packet and identify a transit level router component based a second processing of at least a subset of the destination address associated with the received packet. The transit level router components receive the forwarded packet and forward the packet to a respective network. The mapping, or other assignment, of portions of the FIB associated with the distributed routing environment is managed by a router management component.
Claims (39)
1. A system for routing packets comprising:
a router management component, executed on a computing device, for associating destination address information to a router hierarchy;
one or more router components corresponding to a first level of the router hierarchy, the first level of the router hierarchy for receiving an incoming packet for routing;
one or more router components corresponding to a second level of a router hierarchy, the second level of the router hierarchy for processing an incoming packet for routing received from at least one of the one or more router components corresponding to the first level of a router hierarchy;
one or more router components corresponding to a third level of a router hierarchy, the third level of the router hierarchy for processing an incoming packet for routing received from at least one of the one or more router components corresponding to the second level of a router hierarchy;
wherein the one or more router components corresponding to the first level of a router hierarchy identifies one or more router components from the one or more router components corresponding to the second level of a router hierarchy based on a first subset of a destination address associated with the incoming packet, wherein the first subset is assigned by the router management component;
wherein each of the one or more router components corresponding to the second level of a router hierarchy correspond to portions of the first subset of the destination address associated with the incoming packet; and wherein the'one or more router components corresponding to the second level of a router hierarchy identifies one or more router components from the one or more router components corresponding to third level of a router hierarchy based on a second subset of a destination address associated with the incoming packet, wherein the second subset is assigned by the router management component and wherein the second subset of the destination address is greater than the first subset of the destination address.
a router management component, executed on a computing device, for associating destination address information to a router hierarchy;
one or more router components corresponding to a first level of the router hierarchy, the first level of the router hierarchy for receiving an incoming packet for routing;
one or more router components corresponding to a second level of a router hierarchy, the second level of the router hierarchy for processing an incoming packet for routing received from at least one of the one or more router components corresponding to the first level of a router hierarchy;
one or more router components corresponding to a third level of a router hierarchy, the third level of the router hierarchy for processing an incoming packet for routing received from at least one of the one or more router components corresponding to the second level of a router hierarchy;
wherein the one or more router components corresponding to the first level of a router hierarchy identifies one or more router components from the one or more router components corresponding to the second level of a router hierarchy based on a first subset of a destination address associated with the incoming packet, wherein the first subset is assigned by the router management component;
wherein each of the one or more router components corresponding to the second level of a router hierarchy correspond to portions of the first subset of the destination address associated with the incoming packet; and wherein the'one or more router components corresponding to the second level of a router hierarchy identifies one or more router components from the one or more router components corresponding to third level of a router hierarchy based on a second subset of a destination address associated with the incoming packet, wherein the second subset is assigned by the router management component and wherein the second subset of the destination address is greater than the first subset of the destination address.
2. The system as recited in Claim 1, wherein the one or more router components corresponding to the second level of a router hierarchy is allocated to correspond to approximately equal portions of the first subset of the destination addresses associated with the incoming packet.
3. The system as recited in Claim 1, wherein the one or more router components corresponding to the second level of a router hierarchy is allocated to correspond to portions of the first subset of the destination address associated with the incoming packet based on traffic volumes attributed to the destination address.
4. The system as recited in Claim 1, wherein the one or more router components corresponding to a first level of a router hierarchy are selected in accordance with one of random selection, round robin selection, hashing and load balancing.
5. The system as recited in Claim 1, wherein the destination address corresponds to an IP address.
6. The system as recited in Claim 5, wherein first subset of the IP address corresponds to the eight most significant bits of the IP address.
7. The system as recited in Claim 5, wherein first subset of the IP address corresponds to at least one of the sixteen or twenty four most significant bits of the IP
address.
address.
8. The system as recited in Claim 1, wherein at least two of the one or more router components corresponding to a first level of the router hierarchy are implemented in a common physical router component.
9. The system as recited in Claim 1, wherein at least two of the one or more router components corresponding to a second level of the router hierarchy are implemented in a common physical router component.
10. The system as recited in Claim 1, wherein at least two of the one or more router components corresponding to a first level of the router hierarchy are implemented in a common physical router component.
11. The system as recited in Claim 1, wherein at least one physical router component implements at least two of a first level router, a second level router and a third level router.
12. A system for routing packets comprising:
a first set of logical router components for receiving an incoming packet for routing;
a second set of logical router components for routing packet received from the first set of router components;
a third set of logical router components for routing packets received from the second set of router components wherein the first set of logical router components identify a router from the second set of logical router components based on a correlation by a router management component of a subset of the destination address associated with the incoming packet to the selected router;
wherein each of the one or more router components corresponding to the second set of logical router components is allocated by the router management component to correspond to portions of the first subset of the destination address associated with the incoming packet; and wherein the second set of logical router components identify a router from the third set of logical router components based on a correlation by the router management component of a second subset of a destination address associated with the incoming packet to the second selected router.
a first set of logical router components for receiving an incoming packet for routing;
a second set of logical router components for routing packet received from the first set of router components;
a third set of logical router components for routing packets received from the second set of router components wherein the first set of logical router components identify a router from the second set of logical router components based on a correlation by a router management component of a subset of the destination address associated with the incoming packet to the selected router;
wherein each of the one or more router components corresponding to the second set of logical router components is allocated by the router management component to correspond to portions of the first subset of the destination address associated with the incoming packet; and wherein the second set of logical router components identify a router from the third set of logical router components based on a correlation by the router management component of a second subset of a destination address associated with the incoming packet to the second selected router.
13. The system as recited in Claim 12, wherein the correlation of routers from the second set of router components is based on a substantially equal allocation of possible destination addresses.
14. The system as recited in Claim 12, wherein the correlation of routers from the second set of logical router components is based on an association of traffic volumes for destination addresses.
15. The system as recited in Claim 12, wherein the correlation of routers from the second set of logical router components is based on a combination of an association of traffic volumes for destination addresses and an equal allocation of remaining destination addresses.
16. The system as recited in Claim 12, wherein each of the routers from the second set of logical router components are associated with a threshold number of destination addresses and wherein the correlation of routers from the second set of logical router components is based on allocation of a number greater than the threshold number of destination addresses associated with the second set of logical router components.
17. The system as recited in Claim 12, wherein the correlation of routers from the second set of logical router components is based on an association of low traffic volumes for destination addresses.
18. The system as recited in Claim 12, wherein the correlation of routers from the second set of logical router components includes an allocation of a plurality of routers for the same subset of destination addresses.
19. The system as recited in Claim 12, wherein first set of router components are selected in accordance with one of random selection, round robin selection, hash selection and load balancing.
20. The system as recited in Claim 12, wherein the destination address corresponds to an IP address.
21. The system as recited in Claim 20, wherein first subset of the IP address corresponds to the eight most significant bits of the IP address.
22. The system as recited in Claim 21, wherein first subset of the IP address corresponds to at least one of the sixteen or twenty four most significant bits of the IP
address.
address.
23. The system as recited in Claim 12, wherein each of the first set of logical router components correspond to a physical router component.
24. The system as recited in Claim 12, wherein two or more of the first set of logical router components correspond to a single physical router component.
25. The system as recited in Claim 12, wherein each of the second set of logical router components correspond to a physical router component.
26. The system as recited in Claim 12, wherein two or more of the second set of logical router components correspond to a single physical router component.
27. The system as recited in Claim 12, wherein each of the third set of logical router components correspond to a physical router component.
28. The system as recited in Claim 12, wherein two or more of the third set of logical router components correspond to a single physical router component.
29. The system as recited in Claim 12, wherein at least one of the set of first logical components, at least one of the second set of logical components, and at least one of the third set of logical router components correspond to a single physical router component.
30. A method for routing packets comprising:
obtaining a routing request corresponding to a data packet received from a first communication network;
identifying a first router corresponding to a first level of a router hierarchy, the first level of the router hierarchy corresponding to one or more router components;
forwarding the received data packet to the identified first router;
identifying a second router corresponding to a second level of the router hierarchy, the second level of the router hierarchy corresponding to one or more router components;
forwarding the received data packet to the identified second router; and identifying a third router corresponding to a third level of the router hierarchy, the third level of the router hierarchy corresponding to one or more router components;
wherein identifying the second router corresponding to a second level of the router hierarchy is based on a correlation of a subset of the destination address associated with the received data packet to the selected router; and wherein identifying a third router corresponding to a third level of the router hierarchy is based on a correlation of a second subset of a destination address associated with the incoming packet to the second selected router.
obtaining a routing request corresponding to a data packet received from a first communication network;
identifying a first router corresponding to a first level of a router hierarchy, the first level of the router hierarchy corresponding to one or more router components;
forwarding the received data packet to the identified first router;
identifying a second router corresponding to a second level of the router hierarchy, the second level of the router hierarchy corresponding to one or more router components;
forwarding the received data packet to the identified second router; and identifying a third router corresponding to a third level of the router hierarchy, the third level of the router hierarchy corresponding to one or more router components;
wherein identifying the second router corresponding to a second level of the router hierarchy is based on a correlation of a subset of the destination address associated with the received data packet to the selected router; and wherein identifying a third router corresponding to a third level of the router hierarchy is based on a correlation of a second subset of a destination address associated with the incoming packet to the second selected router.
31. The method as recited in Claim 30, wherein each of the one or more router components corresponding to the second level of the router hierarchy is allocated to correspond to portions of the first subset of the destination address associated with the incoming packet.
32. The method as recited in Claim 31, wherein the correlation of routers from the second level of the router hierarchy is based on at least a substantially equal allocation of possible destination addresses.
33. The method as recited in Claim 31, wherein the correlation of routers from the second level of the router hierarchy is based on an association of traffic volumes for destination addresses.
34. The method as recited in Claim 31, wherein the correlation of routers from the second level of the router hierarchy is based on a combination of an association of traffic volumes for destination addresses and an equal allocation of remaining destination addresses.
35. The method as recited in Claim 31, wherein each of the routers from the second level of the router hierarchy are associated with a threshold number of destination addresses and wherein the correlation of routers from the second level of the router hierarchy is based on allocation of a number greater than the threshold number of destination addresses associated with the second level of the router hierarchy.
36. The method as recited in Claim 31, wherein the correlation of routers from the second level of the router hierarchy is based on an association of low traffic volumes for destination addresses.
37. The method as recited in Claim 31, wherein the correlation of routers from the second set of router components includes an allocation of a plurality of routers for the same subset of destination addresses.
38. The method as recited in Claim 30, wherein first set of router components are selected in accordance with one of random selection, round robin selection, hash selection and load balancing.
39. The method as recited in Claim 30, wherein the destination address corresponds to an IP address
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/641,260 US8331371B2 (en) | 2009-12-17 | 2009-12-17 | Distributed routing architecture |
| US12/641,260 | 2009-12-17 | ||
| PCT/US2010/060567 WO2011084515A1 (en) | 2009-12-17 | 2010-12-15 | Distributed routing architecture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2784699A1 true CA2784699A1 (en) | 2011-07-14 |
| CA2784699C CA2784699C (en) | 2016-02-02 |
Family
ID=43719558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2784699A Expired - Fee Related CA2784699C (en) | 2009-12-17 | 2010-12-15 | Distributed routing architecture |
Country Status (8)
| Country | Link |
|---|---|
| US (4) | US8331371B2 (en) |
| EP (1) | EP2514151B1 (en) |
| JP (2) | JP5964239B2 (en) |
| CN (1) | CN102763380B (en) |
| CA (1) | CA2784699C (en) |
| ES (1) | ES2583014T3 (en) |
| SG (1) | SG181695A1 (en) |
| WO (1) | WO2011084515A1 (en) |
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