Method and apparatus for creating border gateway protocol reachability on demand in a multi-protocol label switching network
AssigneeAT&T Intellectual Property I, L.P.
InventorsIsrael Means, Adrian Cepleanu, Dimitri Krinos
Life of this patent
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Abstract
A system comprising a BAFX adapted to provide a route exchange between dissimilar address family interfaces; wherein the BAFX is a control plane BGP speaker that connects directly to each address family interface specific route reflector and wherein each address family interface specific route reflector advertises its BGP content to the BAFX for translation; and the BAFX translates a received address family interface format into a destination address family interface format and announces a reformatted route address to a destination route reflector.
Claims18
A non-transitory system comprising:
- a first border gateway protocol (BGP) family, the first BGP family including a first edge router and a first route reflector in communication with the first edge router, the first route reflector advertising a first family address from the first edge router;
- a second BGP family, the second BGP family including a second edge router and a second route reflector in communication with the second edge router, the second route reflector advertising a second family address from the second edge router;
- a BGP address family exchange (BAFX), in communication with the first route reflector and the second route reflector, wherein the BGP family exchange receives the first family address from the first route reflector and translates the first family address to a reformatted family address having a format suitable for the second family address and transmits the reformatted family address to the second route reflector;
- and wherein the second route reflector reflects the reformatted family address to the second edge router, and
- wherein the BAFX includes an encoding within the reformatted family address, wherein the encoding includes a modified label and is communicated to the second edge router and transforms the second edge router to define a data plane between the first edge router and the second edge router.
A non-transitory system comprising:
- a border gateway protocol (BGP) address family exchange (BAFX) adapted to provide a route exchange between a first address family interface (AFI) and a second AFI, wherein the first AFI and the second AFI are dissimilar AFIs;
- wherein the BAFX is a control plane BGP speaker that connects directly to at least a first AFI specific route reflector that advertises its BGP content to the BAFX for translation,
- wherein the BAFX connects directly to at least a second AFI specific route reflector;
- and
- wherein the BAFX translates a received AFI format within the BGP content received from the first AFI specific route reflector into a destination AFI format and announces a reformatted route address to the second AFI specific route reflector.
A non-transitory system comprising:
- a multi-protocol switching network having plural disparate address family interfaces (AFIs);
- and
- a border gateway protocol (BGP) address family exchange (BAFX) in communication with the multi-protocol switching network and adapted to receive a route address from a first (AFI) of the AFIs and translate the route address to a reformatted route address having a format suitable for receipt by a second AFI of the AFIs, wherein the BAFX transmits the reformatted address to the second AFI to establish a data plane between the first AFI and the second AFI.
Dependencies are inferred from the claim text.