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Tag: vPC

Cisco Switch Virtualization (Clustering)

Cisco Switch Virtualization (Clustering)

Network Virtualization vs Device Virtualization: Examples of Network Virtualization Virtual Port-channel (vPC) VLAN (L2) VRF (L3) VSAN Examples of Device Virtualization Security Context Virtual Device Context (VDC) Virtual Switch System (VSS) StackWise Virtual (SV) and Physical StackWise Virtual Machines (VMs) Why Use Switch/Device Virtualization? Eliminate STP blocked paths, FHRPs, and multiple device administration touch points Simplifies operations of campus access, distribution, and core topology Active/Active data plane path via Multi-chassis Etherchannel (MEC) = more bandwidth and lower latency Improve convergence…

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Data Center: Nexus vPC Technology

Data Center: Nexus vPC Technology

Hi Cisco friends! I had a great question from a customer today regarding failure scenarios and vPC. On the surface, I thought this is an easy one. However, when I really gave it deep thought it really depends on the type of failure. Was the failure on the peer-link, peer keepalive, vPC member port, or the worst case dual active/double failure? Let’s go through some of the failure examples. vPC Member Port Failure If one vPC member port goes down – for…

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