Traffic fencing mechanism for control plane enabled networks
First Claim
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1. A method comprising:
- receiving a traffic fencing (TF) function for a network; and
providing a TF attribute, based on the received TF function, over a link of the network to enable activation of a TF rule of a link state routing (LSR) algorithm used by the network to implement the TF function for the network, where the providing the TF attribute comprises;
using a most significant bit of a Type/Length/Value (TLV) triplets value to indicate an ON/OFF state of the TF function, andusing remaining bits of the TLV value to indicate a type of the TF function.
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Abstract
A device receives a traffic fencing (TF) function for a network, and provides a TF attribute, based on the received TF function, over a link of the network to enable activation of a TF rule of a link state routing (LSR) algorithm used by the network to implement the TF function for the network.
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Citations
21 Claims
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1. A method comprising:
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receiving a traffic fencing (TF) function for a network; and providing a TF attribute, based on the received TF function, over a link of the network to enable activation of a TF rule of a link state routing (LSR) algorithm used by the network to implement the TF function for the network, where the providing the TF attribute comprises; using a most significant bit of a Type/Length/Value (TLV) triplets value to indicate an ON/OFF state of the TF function, and using remaining bits of the TLV value to indicate a type of the TF function. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
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a network device; a link connected to the network device; and a network management system or operation support system (NMS/OSS) to; receive a traffic fencing (TF) function for the network device, and provide a TF attribute, based on the received TF function, over the link to enable activation of a TF rule of a link state routing (LSR) algorithm used by the network device to implement the TF function for the network device, where, to provide the TF attribute, the NMS/OSS is further to; use a most significant bit of a Type/Length/Value (TLV) triplets value to indicate an ON/OFF state of the TF function, and use remaining bits of the TLV value to indicate a type of the TF function. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system comprising:
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a network management system or operation support system (NMS/OSS) including; a traffic fencing (TF) attribute creator for receiving a traffic fencing (TF) function for a network and for providing a TF attribute, based on the received TF function, over links of the network; and network devices interconnected by the links, each network device including; a link marker for marking links bordering a TF region of the network with the TF attribute, and a TF routing rule enforcer for activating a TF rule of a LSR algorithm used by the network, where the TF attribute creator uses a most significant bit of a Type/Length/Value (TLV) triplets value to indicate an ON/OFF state of the TF function, and uses remaining bits of the TLV value to indicate a type of the TF function, and where the network devices advertise the created TF TLV in a link state routing protocol (LSRP) traffic engineered (TE) Link State Advertisement (LSA). - View Dependent Claims (19, 20, 21)
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Specification