USE CASES

In Progress…

This procedure details how to upgrade a Cisco Nexus switch using a USB drive and the install all method which performs pre-checks, image verification, install staging, and automatic reload for a clean, validated upgrade. Step 1: Insert USB & Verify File LEAF-101# dir usb1: 16384 Jan 22 11:31:24 2024 System Volume Information/ 2783026176 Feb 13 [ Read More ]

vPC Fabric Peering is a critical technique in VXLAN BGP EVPN environments for achieving seamless Layer 2 connectivity and Anycast Gateway functionality while maintaining control-plane and data-plane consistency. This blog post walks through the motivation behind vPC Fabric Peering, its architecture, and why it enables resilient and scalable data center fabric operations. Let me guide [ Read More ]

I ran into an issue today logging into UCS Manager where I received the following error: Login Error: java.io.IOException: Invalid Http response Login Error: java.io.IOException: Server returned HTTP response code: 400 for URL: http://10.x.x.x:443/nuova This is due to an interoperability issue with Java 7 Update 45 and the UCSM GUI. There are several methods to [ Read More ]

This use case consist of a company wanting to temporarily extend the users broadcast domain from one site to another. The issue here is that the sites are geophysically disjointed and each remote site only has a DIA circuit. In order to resolve the problem, we need a solution capable of encapsulating L2 traffic through [ Read More ]

One of the benefits of a DMVPN network is that the encrypted tunnels are built on top of DIA circuits more often than not. In that sense, the remote sites typically defer in terms of circuit bandwidth. Per-Tunnel QoS is an effective way to apply QoS policies on the hub router(s) on a per-tunnel instance [ Read More ]

In this specific use case, I will show you how to enable dual DMVPN clouds going over ASA firewalls as well as IPSec encryption. We will also take it up a notch and demonstrate DMVPN Phase 3 (Spoke to Spoke Communication), VRF configuration (We will be placing the source of the tunnels into their own [ Read More ]