NSX-T 2.5: How not to advertise the default route in BGP

When your default gateway is located in other virtual or physical device you need to prevent to advertise the default gateway from Tier-0.The following steps can help you to achieve this.1 – Click on networking > Tier-0 Gateways and then Routing – IP Prefix Lists. 2 – Click ADD IP PREFIX LIST and chose the …

KB003: Fail to ping Gateway from the Tier-0 uplink in NSX-T

When we want to prepare the Tier-0 gateway the first step we should do is to configure the interface to communicate the physical environment and then ping to test the connection.Symptoms- Trying to learn MAC addresses from Tier-0 Gateway failed.- Trying to ping the gateway failed.CauseWhen we configure a Edge Gateway Node, also we need …

vSAN 6.7: Reclaim Disk Space by Converting Thick-Provisioned VMs to Thin on vSAN

First we need to know that objects on vSAN are all thinly provisioned by default and there are not thick disks. Instead, vSAN has the concept of Space Reservation, defined by the Storage-Policy ruleset Object Space Reservation (OSR).In my case after migration of a virtual machine the space was totally reserved even if the Default …

KB002: Fail to Install/Upgrade NSX-T, due to out of space in bootbank on ESXi

When we install ESXi custom image, there are many VIBs packages inside which may are not required and they make the bootbank fills and stay out of space to install NSX-T packages. Symptoms - You see the following error: - ESXi logs file (esxupdate.log) shows the following: ERROR: vmware.esximage.Errors.InstallationError: ('', 'The pending transaction requires 242 …

NSX-T 2.5: Configure Route Distribution on T0 (Tier-0) Gateway

When you enable route redistribution, the tier-0 logical router starts sharing specified routes with its northbound router. Prerequisites Verify that the tier-0 and tier-1 logical routers are connected so that you can advertise the tier-1 logical router networks to redistribute them on the tier-0 logical router. If you want to filter specific IP addresses from …

NSX-T 2.5: Connect T1 (Tier-1) Gateway to T0 (Tier-0) Gateway

The next picture shows these interfaces types along with a new RouterLink interface in a two-tiered topology. Follow the steps below to connect Tier-1 Gateway with Tier-0 Gateway. 1 – Login on Edge Gateway and type the following command to list the all routes on Tier-0 Gateway. Get logical-router vrf  1 get route 2 – …

NSX-T 2.5: Add a Tier-0 Gateway and configure bgp

the Tier-0 gateway provides N-S connectivity and connects to the physical routers. The Tier-0 gateway could use static routing or BGP to connect to the physical routers. The Tier-1 gateway cannot connect to physical routers directly; it has to connect to a Tier-0 gateway to provide N-S connectivity to the subnets attached to it. A …

NSX-T 2.5: Overlay and VLAN Segments

NSX-T Segments create logically abstracted logical Switch which you can connect tenant workloads. A single Segment is mapped to a unique Gateway that is distributed across the ESXi hosts in a transport zone. A Segment has different named references: “Segment” in the Simplified UI (Policy UI) and logical switch in the Advance UI (Manager UI). …

NSX-T 2.5: Add a Tier-1 Gateway

NSX-T supports a multi-tiered routing between provider router and tenant routing function. The top-tier logical router is referred to as tier-0 while the bottom-tier logical router is tier-1. This structure gives both provider and tenant administrators complete control over their services and policies. There is no dynamic routing between tier-1 and tier-0 LRs. The NSX-T …

NSX-T 2.5: Create an Edge Cluster

An Edge cluster is a group of homogeneous Edge transport nodes with common properties. It provides scale out, redundant, and high-throughput gateway functionality for logical networks. Follow the steps below to create a Edge Cluster. 1 - Select System > Fabric > Nodes > Edge Cluster > Add. 2 - Type a name for the …