Method and system for migrating a peer in a distributed bgp system
AssigneeHuawei Technologies Co., Ltd.
InventorsLixin ZHANG, Boyan TU
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Abstract
A method for peer migration in a distributed Border Gateway Protocol (BGP) system includes: disconnecting a peer relationship between a source BGP process and a network device, wherein first routing information received from the network device is recorded in a forwarding instruction process; establishing a peer relationship between a target BGP process and the network device, and receiving second routing information from the network device; and updating the first routing information recorded in the forwarding instruction process according to the second routing information.
Claims16
A method for peer migration in a distributed Border Gateway Protocol (BGP) system, comprising:
- disconnecting a peer relationship between a source BGP process and a network device, wherein first routing information received from the network device is recorded in a forwarding instruction process;
- establishing a peer relationship between a target BGP process and the network device, and receiving second routing information from the network device;
- updating the first routing information recorded in the forwarding instruction process according to the second routing information.
A distributed Border Gateway Protocol (BGP) system, comprising:
- a peer disconnecting unit, adapted to disconnect a BGP peer relationship between a source BGP process and a network device;
- a peer setup unit, adapted to set up a BGP peer relationship between a target BGP process and the network device, and receive first routing information from the network device;
- and
- a route updating unit, adapted to update second routing information recorded in a forwarding instruction process which is received from the network device, according to the first routing information received by the target BGP process from the network device.
A method for peer migration in a distributed Border Gateway Protocol (BGP) system, comprising:
- negotiating a graceful restart (GR) function with a network device;
- and
- performing a peer migration for the network device.
A distributed Border Gateway Protocol (BGP) system, comprising:
- a GR negotiation control unit, adapted to negotiate with a network device to enable a graceful function;
- and
- a peer migrating unit, adapted to perform a peer migration for the network device.
A computer readable media, comprising logic encoded in the computer readable media, the logic when executed operable to:
- disconnect a peer relationship between a source BGP process and a network device, wherein first routing information received from the network device is recorded in a forwarding instruction process;
- establish a peer relationship between a target BGP process and the network device, and receiving second routing information from the network device;
- and
- update the first routing information recorded in the forwarding instruction process according to the second routing information.
Dependencies are inferred from the claim text.