Vmware, Inc.

Mansi Babbar

Chidambareswaran Raman

Subin Cyriac Mathew

Uday Shankar Nagaraj

Ankit Parmar

Prerit Rodney

Shyam Sambasivan Ramachandran

Natalia Tupy Jensen

Described herein are systems and methods for allocating to tunnel endpoints to virtual machines on a host. In one example, a host identifies when a new virtual machine is coupled to a virtual switch and determines a tenant associated with the new virtual machine. The host further determines whether a tunnel endpoint is allocated to the tenant and, when a tunnel endpoint has not been allocated, allocates a new tunnel endpoint to the tenant and maps the new virtual machine to the new tunnel endpoint.

Allocation and management of tunnel endpoints in software defined networks

In an embodiment, a computer-implemented method provides mechanisms for identifying a source location in a service chaining topology. In an embodiment, a method comprises: determining, at an egress interface of a host that hosts a virtual machine ('VM'), whether a service plane MAC address ('spmac') in a packet header of a packet, provided to the egress interface, is the same as an inner destination MAC address in the packet; in response to determining that the spmac in the packet header of the packet, provided to the egress interface, is the same as the inner destination MAC address in the packet: encapsulating the packet with a destination virtual tunnel endpoint ('VTEP') address retrieved from a mapping of VTEP-labels onto VTEP addresses; and causing providing the packet from the egress interface of the host that hosts the VM to a source host that hosts a source guest virtual machine (&#x201c;GVM&#x201d;).

Label-based methods for identifying a source location in service chaining topology

In an embodiment, a computer-implemented method provides mechanisms for identifying a source location in a service chaining topology. In an embodiment, a method comprises: receiving a query, from a service plane implementation module executing on a host of a service virtual machine ('SVM'), for a location of a source host implementing a guest virtual machine ('source GVM') that originated a packet in a computer network and that serviced the packet; in response to receiving the query, performing a search of bindings associated with one or more virtual network identifiers (&#x201c;VNIs&#x201d;) or service virtual network identifiers (&#x201c;SVNIs&#x201d;) to identify a particular binding that includes a MAC address of the host implementing the source GVM; identifying, in the particular binding, the location of the source host; and providing the location of the source host to the host of the SVM to facilitate forwarding of the packet from the SVM to the GVM.

Methods for identifying a source location in a service chaining topology

Example methods and computer systems are provided for logical overlay network monitoring. The method may comprise: obtaining egress metric information associated with egress encapsulated packets that are sent by a source virtual tunnel endpoint (VTEP) to a destination VTEP over a logical overlay network; and obtaining ingress metric information associated with ingress encapsulated packets that are received by the destination VTEP from the source VTEP over the logical overlay network. The method may also comprise: performing a comparison to identify a divergence between the egress metric information and the ingress metric information; and based on the divergence, detecting a performance issue affecting logical overlay network connectivity between the source VTEP and the destination VTEP.

Logical overlay network monitoring

In an embodiment, a computer-implemented method provides mechanisms for identifying a source location in a service chaining topology. In an embodiment, a method comprises: determining, at an egress interface of a host that hosts a virtual machine ('VM'), whether a service plane MAC address ('spmac') in a packet header of a packet, provided to the egress interface, is the same as an inner destination MAC address in the packet; in response to determining that the spmac in the packet header of the packet, provided to the egress interface, is the same as the inner destination MAC address in the packet: encapsulating the packet with a destination virtual tunnel endpoint (&#x201c;VTEP&#x201d;) address retrieved from a mapping of VTEP-labels onto VTEP addresses; and causing providing the packet from the egress interface of the host that hosts the VM to a source host that hosts a source guest virtual machine (&#x201c;GVM&#x201d;).

Growing community of inventors

Fremont, CA, United States of America

Mansi Babbar