Tagvpc

Bulk Creating AWS VPC Flow Logs

vRealize Network Insight provides traffic visibility in AWS by ingesting the VPC Flow Logs. It correlates the flows to EC2 instances and adds more context, like the security groups, tags, and more. 

VPC Flow Logs are not enabled by default and need to be configured before vRNI can start ingesting the logs. That’s where this post comes in. The AWS lab that I use at VMware for demos is for the entire CMBU and has a bunch of smart people doing cool things. In other words, a ton of VPCs get created and deleted, EC2 instances deployed dynamically. I wanted … Read more

Cisco vPC between VDCs in single Nexus 7k (Lab)

Cisco virtual Port-channels technology is a pretty straight-forward technique: make two switches seem like one switch to a downstream switch, connected with a port-channel. The downstream switch has a single port-channel going upward, which makes the switch high available and eliminating the use of spanning-tree. It looks like this:

vPC in single N7k

Read more about vPC here. For the rest of this post, I’ll assume you know how to configure and use vPC.

In a lab where you have a single Nexus 7000 switch for testing and studying, you would divide it up into VDCs for ultimate usage. OTV, Fabricpath and the … Read more

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