Network system, method and protocols for hierarchical service and content distribution via directory enabled network

• US 20020184368A1
• Filed: 04/06/2001
• Published: 12/05/2002
• Est. Priority Date: 04/06/2001
• Status: Abandoned Application

• Current Assignee: Terited International, Inc.
• Original Assignee: Terited International, Inc.
• Inventors: Wang, Yunsen
• Application Number:
  US09/827,163
• Publication Number:
  US 20020184368A1
• Time in Patent Office: Days
• US Class Current: 709/226
• CPC Class Codes: H04L 41/044 comprising hierarchical management structures
• CPC Class Codes: H04L 41/5003 Managing SLA; Interaction between SLA and QoS
• CPC Class Codes: H04L 41/509 wherein the managed service relates to media content delivery, e.g. audio, video or TV
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 61/4523 using lightweight directory access protocol [LDAP]
• CPC Class Codes: H04L 63/064 Hierarchical key distribution, e.g. by multi-tier trusted parties
• CPC Class Codes: H04L 63/164 at the network layer
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/10015 Access to distributed or replicated servers, e.g. using brokers
• CPC Class Codes: H04L 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04L 67/1017 based on a round robin mechanism
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A network system is provided for management of hierarchical service and content distribution via a directory enabled network to improve performance of the content delivery network with a hierarchical service network infrastructure design. In accordance with the network system, a method and protocols are provided as to how to design the network of multiple data centers running existing Internet protocol and user'"'"'s proprietary protocols, allowing a user to obtain various Internet services, especially the content delivery service, in a scalable and fault tolerant way. The network system is constructed into 4 layers, each layer is represented and managed by a service manager with back up mirrored managers. The layer 4 service manager is responsible for management of multiple CDN (content delivery network). The layer 3 service manager is responsible for management of one CDN network that has multiple data centers. The layer 2 service manager is responsible for management of one data center that has multiple server farms or service engine farms. The layer 1 service manager is responsible for all servers in a server farm. Each server of the server farm can be connected by LAN Ethernet Switch Network that supports the layer 2 multicast operations or by Infiniband switch which is the new industry I/O specification for server design.

Claims

1. A network system for management of hierarchical service and content distribution via directory enabled network, comprising:

at least one level 4 service manager responsible for management of multiple content delivery network;

at least one level 3 service manager responsible for management of one of the content delivery networks having multiple data centers;

at least one level 2 service manager responsible for management of one of the data centers having multiple server farms or service engine farms; and

at least one level 1 service manager for establishing a directory information routing protocol with the at least one level 2 service manager.

2. The network system of claim 1, wherein each server of the server farm is connected by LAN Ethernet Switch Network that supports a layer 2 multicast operations.

3. The network system of claim 1, wherein each server of the server farm is connected by the Infiniband switch.

4. The network system of claim 1, wherein data passing through the data center can go through an IPSEC tunnel to guarantee privacy and security, so as to even form a VPN among the data centers.

5. The network system of claim 1, wherein the at least one level 1 service manager is managed to establish a directory gateway protocol connection with at least one of the at least one level 2 service manager, the at least one level 2 service manager is managed to establish a directory gateway protocol connection with at least one of the at least one level 3 service manager, the at least one level 3 service manager is managed to run as a DNS server, which directs a user'"'"'s request to a different data center as a geographical load balancing, and the service manager of the origin at server farm is also managed to establish a directory gateway protocol connection with the parent service manager thereof.

6. A network system for management of hierarchical service and content distribution via directory enabled network comprising:

at least one level 4 service manager responsible for management of multiple content delivery networks and storing content location information of the at least one content delivery network;

at least one level 3 service manager responsible for management of one of the content delivery networks having multiple data centers, wherein each of the at least one level 3 service manager stores the content location information of the corresponding content delivery network, and the content information of data centers;

at least one level 2 service manager responsible for management of one of the data center having multiple server farms or service engine farms, wherein each of the at least one level 2 service manager of the data center stores only the content location information of the corresponding data center; and

at least one level 1 service manager for establishing a directory information routing protocol with the at least one level 2 service manager, so as to manage each of the server farms, wherein the at least one level 1 service manager and the at least one level 2 service manager are created through a LAN multicast and a link state routing protocol'"'"'s opaque link state packet flooding with service information.

7. The network system of claim 6, wherein each server of the server farm is connected by LAN Ethernet Switch Network that supports a layer 2 multicast operations.

8. The network of claim 6, wherein each server of the server farm is connected by the Infiniband switch.

9. The network of claim 6, wherein data passing through the data center can go through an IPSEC tunnel to guarantee privacy and security, so as to even form a VPN among the data centers.

10. The network of claim 6, wherein the at least one level 1 service manager is managed to establish a directory gateway protocol connection with at least one of the at least one level 2 service manager, the at least one level 2 service manager is managed to establish a directory gateway protocol connection with at least one of the at least one level 3 service manager, the at least one level 3 service manager is managed to run as a DNS server, which directs a user'"'"'s request to a different data center as a geographical load balancing, and the service manager of the origin at server farm is also managed to established a directory gateway protocol connecting with the parent service manager thereof.

11. A method for management hierarchical service and content distributing via a directory enabled network including at least one level 4 service manager, at least one level 3 service manager, at least one level 2 service manager, and at least one level 1 service managers comprising the steps of:

managing at lest one content delivery network having multiple data centers and storing the content location information of the at least one content delivery network;

establishing a directory information routing protocol between the at least one level 1 service manager and the at least one level 2 service manager, and managing each of the server farms.

12. The method of claim 11, further comprising a step of establishing a directory gateway protocol connecting between the at least one level 2 service manager and at least one of the at least one level 3 service manager.