Virtual Local Area Network Mismatch Detection in Networks

摘要

The present disclosure discloses a method and network device for providing VLAN mismatch detection in networks. Specifically, a network device monitors a plurality of packets received by a first device from a second device to identify a first set of VLAN identifiers indicated by at least one of the plurality of packets. The network device receives from a third device at least one packet tagged with a particular VLAN identifier, whereas the at least one packet to be forwarded by the first device to the second device. The network device then determines whether the particular VLAN identifier is included in the first set of VLAN identifiers indicated by at least one of the plurality of packets received by the first device from the second device. If the particular VLAN identifier is not included in the first set of VLAN identifiers, the network device presents a notification.

主权项

1. A non-transitory computer readable medium comprising instructions which, when executed by one or more hardware processors, causes performance of operations comprising:
monitoring a plurality of packets received by a first device from a second device to identify a first set of VLAN identifiers indicated by at least one of the plurality of packets; receiving, by the first device from a third device, at least one packet tagged with a particular VLAN identifier, the at least one packet to be forwarded by the first device to the second device; determining whether the particular VLAN identifier is included in the first set of VLAN identifiers indicated by at least one of the plurality of packets received by the first device from the second device; and responsive at least to determining that the particular VLAN identifier is not included in the first set of VLAN identifiers, presenting a notification based on the determining operation.