VMware Cloud on AWS: NSX networking and Security eBook

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Gilles Chekroun
Lead VMware Cloud on AWS Specialist
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It's off the press and ready to download.
It was a great pleasure to write this book together with my colleagues Humair Ahmed and Nico Vibert

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Egress VPC and AWS Transit Gateway (Part1)

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Gilles Chekroun
 Lead VMware Cloud on AWS Solutions Architect --- Usually my blog posts are customer driven and recently I have been working on a design that would include an Egress VPC and AWS Transit Gateway. This customer is going to use both VMware Managed Transit Gateway and also AWS Transit Gateway. I will split this post in 3 parts: The Egress VPC - this article Adding a VMC SDDC to the Egress VPC here Adding VMware Managed Transit Gateway here Why do we need an Egress VPC? Numerous posts on AWS site  will describe how to build an Egress VPC and the subtleties of the various route tables of the TGW and the Egress VPC itself. The main goal is to have ONE Internet gateway only  that will allow workloads to go out to internet on the Egress VPC. One of the most important point is redundancy and multi-availability zones. Applications usually reside in private subnets, while NAT Gateways reside in a public subnet. NAT Gateways To focus the Internet access to a single point, we can cre
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AWS Transitive routing with Transit Gateways in the same region

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Gilles Chekroun Lead VMware Cloud on AWS Specialist --- At the AWS Re:invent 2019 conference, the long waited TGW peering functionality was announced and available in a few AWS regions. This is an INTER-REGION peering only meaning that the Transit Gateways need to be in different regions. Hoping that AWS will soon release an INTRA-REGION capability I discussed with a few AWS Solutions Architects in Las Vegas, among them Tom Adamski , about using a VPC as a bridge between two TGWs in the same region. Tom assured me that it is possible opening for the first time the transitive routing capability in AWS networking. Well . . . I needed to test that and see by myself. Test bed For a simple test, I will use 2 TGWs in the same regions with 2 VPCs attached each and another VPC as "bridge" connected to both TGWs. Yes you can connect a VPC up to 5 TGWs . The whole idea is to use this "bridging VPC" and point the default route of the TGWs to it. To do that I c
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Considerations on vTGW to TGW Peering Link

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   Gilles Chekroun
 Lead VMware Cloud on AWS Solutions Architect --- Recently I was talking with a Customer on designing their VMware Cloud on AWS environment and linking it to their existing AWS infrastructure. The idea was to have 2 SDDCs, Test and Prod, and link them with a VMware Managed TGW and peer it to their existing TGW. The customer requirements were: VMs in each SDDC should have internet access from the SDDC out VMs from Test should be able to talk to VMs in Prod VMs in any SDDC should be able to access their own vCenter but also the other one Some VMs any SDDC should have a Public IP and NAT rule to be accessible from outside VMware traffic should stay within VMware SDDCs Other traffic, like on-prem, should go via the Customer TGW Test Setup Step1 - Create SDDC Group Create an SDDC Group and attach the 2 SDDCs Prod and Test Make sure the proper FireWall rules are open in each SDDC Compute GW. Step 2 - Attach the Customer TGW In the SDDC Groups, under External TGW TAB, add t
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