|Figure 1: VMware NSX network gateway services partners|
|Figure 2: Network gateway services / VxLAN tunnel endpoint (VTEP)|
The Open vSwitch also supports the sFlow standard, providing a common monitoring solution for virtual switches and top of rack switches. In addition, core switches and routers from the listed partner vendors (and many other switch vendors) also implement sFlow, offering complete end to end visibility into traffic flowing on the virtualized and physical networks.
The packet header export mechanism in sFlow is uniquely suited to monitoring tunneled traffic, see Tunnels, exposing inner and outer addresses and allowing monitoring tools to trace virtualized traffic as it flows over the physical fabric, see Down the rabbit hole.
In addition, F5 networks is listed as a partner in the Application Delivery category. F5 supports sFlow on their BIG IP platform, see F5 BIG-IP LTM and TMOS 11.4.0, providing visibility into application performance (including response times, URLs, status etc.) and linking the front-end performance seen by clients accessing virtual IP addresses (VIPS) with the performance of individual back-end servers.
Embedding visibility in all the elements of the data center provides comprehensive, cost effective, visibility into data center resources. Visibility is critical in reducing operational complexity, improving performance, decreasing the time to identify the root cause of performance problems, and isolating performance between virtual networks, see Multi-tenant performance isolation.