Detection of LAG misconfiguration
AssigneeHewlett Packard Enterprise Development LP
InventorKumar Suresh
Life of this patent
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Abstract
Systems and methods are provided for detecting link aggregation group (LAG) misconfigurations. Conventional operation of LACP is modified so that a network entity, such as a fabric manager may broadcast LAG configuration information to switches or devices of a fabric or network along with partner LAG configuration information. In this way, practical implementational challenges associated with the use of LACP instances in individual switches or devices and with the use of a fabric manager, can be avoided, where a switch or device in receipt of such partner LAG configuration information can compare that information with the switch's/device's current LAG configuration. Switches or devices need not exchange LACP messages directly, but can still be aware of fabric-wide LAG configurations that may impact their operation.
Claims20
A method, comprising:
- specifying a link aggregation group (LAG) configuration for a plurality of switches of a fabric;
- appending partner LAG configuration information to the LAG configuration, the partner LAG configuration information corresponding to partner switches of the plurality of switches of the fabric;
- and
- transmitting the LAG configuration and the partner LAG configuration information to the plurality of switches, the LAG configuration and the partner LAG configuration information prompting a mismatch check between the plurality of switches and the partner switches.
A method, comprising:
- at switches of a switch fabric, receive link aggregation group (LAG) configuration information and partner LAG configuration information regarding the switches;
- at the switches, compare a switch's current LAG configuration information with the partner LAG configuration information of the switch's partner switch;
- in response to a determination that a LAG configuration mismatch exists between the switch and the partner switch, impart an out-of-sync status to one or more links between the switch and the partner switch corresponding to the LAG configuration mismatch;
- and
- prevent data transmission on the one or more links with the out-of-sync status.
A network device, comprising:
- a processor;
- and
- a memory storing instructions that when executed, cause the processor to:
- compare resident link aggregation group (LAG) configuration information of the network device with LAG configuration information and partner LAG configuration information regarding a plurality of peer network devices of a fabric, the fabric including the network device;
- and
- in response to a determination that a LAG configuration mismatch exists between the network device and one of the peer network devices of the fabric, disable access to one or more links between the network device and the one of the peer network devices corresponding to the LAG configuration mismatch.
Dependencies are inferred from the claim text.