System and method for handling IGP flooding topology inconsistency
AssigneeHuawei Technologies Co., Ltd.
InventorsHuaimo Chen, Dean Cheng
Life of this patent
Estimating the term…
Abstract
A network node (N1) for handling IGP flooding topology (FT) inconsistency by obtaining a new FT and setting a FT flag field (FT field) in a data packet (DP) to indicate whether a link between N1 and a second node (N2) is on the new FT. N1 transmits the DP to N2. N1 receives a second DP from N2 that includes the FT field set by N2 to indicate whether the link between the network node and N2 is on the new FT as determined by N2. N1 sets a FT inconsistency field in a link state packet to indicate an inconsistency in the new FT when the FT field set by N2 and the FT field set by N1 are different for a given time. N1 distributes the LS to at least one node in the network.
Claims18
A method performed by a network node of a network for handling Interior Gateway Protocol (IGP) flooding topology inconsistency, the method comprising:
- receiving a new flooding topology, wherein the new flooding topology is received from a leader node of a topology that is designated to determine and distribute the new flooding topology;
- setting a first indication in a data packet to indicate whether a link between the network node and a second network node is on the new flooding topology;
- and
- transmitting the first indication in the data packet to the second network node.
A network node comprising:
- memory storing instructions;
- and
- one or more processors in communication with the memory and configured to execute the instructions to cause the network node to:
- receive a new flooding topology of a network, wherein the new flooding topology is received from a leader node of a topology that is designated to determine and distribute the new flooding topology;
- set a first indication in a data packet to indicate whether a link between the network node and a second network node is on the new flooding topology;
- and
- transmit the first indication in the data packet to the second network node.
A computer program product comprising computer-executable instructions stored on a non-transitory computer-readable storage medium, the computer-executable instructions when executed by one or more processors of a network node, cause the network node to:
- receive a new flooding topology of a network, wherein the new flooding topology is received from a leader node of a topology that is designated to determine and distribute the new flooding topology;
- set a first indication in a data packet to indicate whether a link between the network node and a second network node is on the new flooding topology;
- and
- transmit the first indication in the data packet to the second network node.
Dependencies are inferred from the claim text.