AUTOMATIC RESOLUTION OF VIRTUAL NETWORK INSTANCE TO VLAN MAPPING CONFLICTS IN DUAL-HOMED DEPLOYMENTS IN A DYNAMIC FABRIC AUTOMATION NETWORK ARCHITECTURE

摘要

In accordance with one example embodiment, there is provided a system configured for virtual local area network (VLAN) blocking on a virtual port channel (vPC) member link to handle discrepant virtual network instance (VNI) to VLAN mappings. In other embodiments, the system can be configured for providing Virtual Switch Interface Discovery Protocol (VDP) and virtual switch enhancements to accommodate discrepant VNI to VLAN mappings. In another example embodiment, an apparatus is provided that includes a processor, and a memory coupled to the processor, where the apparatus is configured such that if a server is connected through a virtual port channel, a VDP is used to notify the server of different VNI to VLAN mappings. In another embodiment, the apparatus can extend a VDP Filter Info Field to carry a set of VLANs mapped to a VNI, keyed by leaf MAC addresses that serve as bridge identifiers.

主权项

1. A method for managing virtual network instance (VNI) to virtual local area network (VLAN) mapping conflicts for a dual-homed server communicably connected to a first peer leaf and a second peer leaf over a virtual port channel (vPC), the method comprising:
receiving, at the first peer leaf from the second peer leaf, information identifying a first VNI as being mapped to a second VLAN at the second peer leaf, wherein the first VNI is being mapped to a first VLAN at the first peer leaf; detecting that the first VLAN is different to the second VLAN; in response to detecting the first VLAN is different from the second VLAN, blocking a link over the first VLAN connecting the first peer leaf to any virtual machine associated with the first VNI at the dual-homed server.