Resilience Solution for Top Tier Bandwidth Managers
First Claim
1. A back up top tier bandwidth manager adapted to back up a top tier bandwidth manager upon fail-over of the top tier bandwidth manager in an Internet Protocol, IP, network, wherein said IP network comprises the top tier bandwidth manager comprising a resource map and being adapted to pre-allocate resources in bulk from a bottom tier of said IP network via a bottom-tier bandwidth manager also located in said IP network, the back up top tier bandwidth manager is wherein it comprises a copy of the resource map of the top tier bandwidth manager which it is backing up and means for synchronising states with the bottom tier bandwidth manager upon fail-over of the top tier bandwidth manager.
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Accused Products
Abstract
The present invention relates to a back up top tier bandwidth manager (160) adapted to back up a top tier bandwidth manager (120) upon fail-over of the top tier bandwidth manager (120) in an Internet Protocol, IP, network. Said IP network comprises the top tier bandwidth manager (120) comprising a resource map (130) and adapted to pre-allocate resources in bulk from a bottom tier of said IP network (150) via a bottom-tier bandwidth manager (140) also located in said IP network. The back up top tier bandwidth manager comprises further a copy of the resource map (130) of the top tier bandwidth manager (120) which it is backing up and means for synchronising states with the bottom tier bandwidth manager upon fail-over of the top tier bandwidth manager.
13 Citations
24 Claims
- 1. A back up top tier bandwidth manager adapted to back up a top tier bandwidth manager upon fail-over of the top tier bandwidth manager in an Internet Protocol, IP, network, wherein said IP network comprises the top tier bandwidth manager comprising a resource map and being adapted to pre-allocate resources in bulk from a bottom tier of said IP network via a bottom-tier bandwidth manager also located in said IP network, the back up top tier bandwidth manager is wherein it comprises a copy of the resource map of the top tier bandwidth manager which it is backing up and means for synchronising states with the bottom tier bandwidth manager upon fail-over of the top tier bandwidth manager.
- 13. An Internet Protocol, IP, network comprising a top tier bandwidth manager comprising a resource map and being adapted to pre-allocate resources in bulk from a bottom tier of said IP network via a bottom-tier bandwidth manager also located in said IP network, the IP network comprises further a back up top tier bandwidth manager adapted to back up the top tier bandwidth manager upon fail-over of the top tier bandwidth manager, the network is wherein the back up top tier bandwidth manager comprises a copy of the resource map of the top tier bandwidth manager which it is backing up and means for synchronising states with the bottom tier bandwidth manager upon fail-over of the top tier bandwidth manager.
Specification