Network service header metadata for load balancing
First Claim
1. A method for load balancing based on metadata in a network service header, the method comprising:
- receiving, at a first classifier, a packet or frame of a traffic flow, the packet or frame having a payload and a network service header including service path information for the traffic flow identifying the service path;
first adding, at the first classifier, a first classification to the network service header of the packet or frame;
receiving, at a second classifier downstream from the first classifier in the service path, the packet or frame;
second adding, by the second classifier, a second classification to the network service header of the packet or frame;
receiving, at a load balancer downstream from the second classifier in the service path, the packet or frame;
extracting, by a service header processor of the load balancer, the first and second classification from the packet or frame; and
applying, by a load balancing function of the load balancer, a load balancing policy on the packet or frame based on the first and second classification.
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Accused Products
Abstract
A method for load balancing based on metadata in a network service header. The method includes receiving a packet or frame of a traffic flow, wherein the packet or frame has a payload and the network service header including metadata and service path information for the traffic flow identifying the service path, and the metadata comprises classification information of the packet or frame, extracting, by a service header processor of the load balancer, the classification information of the metadata from the packet or frame, and applying, by a load balancing function of the load balancer, a load balancing policy on the packet or frame based on the classification information of the metadata.
339 Citations
14 Claims
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1. A method for load balancing based on metadata in a network service header, the method comprising:
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receiving, at a first classifier, a packet or frame of a traffic flow, the packet or frame having a payload and a network service header including service path information for the traffic flow identifying the service path; first adding, at the first classifier, a first classification to the network service header of the packet or frame; receiving, at a second classifier downstream from the first classifier in the service path, the packet or frame; second adding, by the second classifier, a second classification to the network service header of the packet or frame; receiving, at a load balancer downstream from the second classifier in the service path, the packet or frame; extracting, by a service header processor of the load balancer, the first and second classification from the packet or frame; and applying, by a load balancing function of the load balancer, a load balancing policy on the packet or frame based on the first and second classification. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for load balancing based on metadata in a network service header, the system comprising:
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a first classifier having at least one memory element having instructions stored thereon and at least one processors coupled to the at least one memory element and configured to execute the instructions to cause the first classifier to; receive a packet or frame of a traffic flow, the packet or frame having a payload and a network service header including service path information for the traffic flow identifying the service path; first add first classification to the network service header of the packet or frame; a second classifier, located downstream from the first classifier in the service path, having at least one memory element having instructions stored thereon and at least one processors coupled to the at least one memory element and configured to execute the instructions to cause the first classifier to; receive, at a second classifier downstream from the first classifier in the service path, the packet or frame; second add, by the second classifier, a second classification to the network service header of the packet or frame; a load balancer, located downstream from the second classifier in the service path, having at least one memory element having instructions stored thereon and at least one processors coupled to the at least one memory element and configured to execute the instructions to cause the load balancer to; receive the packet or frame of a traffic flow extract the first and second classification from the packet or frame; and apply a load balancing policy on the packet or frame based on the first and second classification. - View Dependent Claims (12, 13, 14)
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Specification