Fault Tolerant Communication in a Trill Network
AssigneeInternational Business Machines Corporation
InventorsDAYAVANTI G. KAMATH, KESHAV KAMBLE, DAR-REN LEU, VIJOY A. PANDEY
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Abstract
Each of first and second bridges of a data network having respective external links to an external node implement a network bridge component that forwards traffic inside the network and a virtual bridge component that forwards traffic outside of the network. A virtual bridge is formed including the virtual bridge components of the first and second bridges and an interswitch link (ISL) between the virtual bridge components of the first and second bridges. Data frames are redirected via the ISL in response to a link-down condition of one of the external links.
Claims6
A method, comprising:
- implementing, on each of first and second bridges of a data network having respective external links to a common external node, a network bridge component that forwards traffic inside the data network and a virtual bridge component that forwards traffic outside of the data network;
- forming a virtual bridge including the virtual bridge components of the first and second bridges and an interswitch link (ISL) between the virtual bridge components of the first and second bridges;
- and
- redirecting data frames egressing the data network via the ISL in response to a link-down event for an external link among the external links to the common external node.
Dependencies are inferred from the claim text.