Patent ID: 9397858
Filing Date: 2016-07-19
CPC Classification: H04L,Y02D

Claim Text:
1. A system, comprising: a first device coupled to a second device over a trunk in a computer network configured to implement at least two virtual local area network (VLAN) registration protocols, wherein the first device implements a first VLAN registration protocol; the first device configured to detect whether the second device implements the first VLAN registration protocol based on an unsolicited message received by the first device from the second device, the unsolicited message including a modified type/length/value (TLV) and a trunk operational encapsulation type (TOT) field, the modified TLV and the TOT field indicating a second VLAN registration protocol implemented on the second device; and in response to determining that the second VLAN registration protocol is the same as the first VLAN registration protocol, the first device further configured to implement a pruning technique associated with the first VLAN registration protocol for VLAN traffic forwarded to the second device.