Cross Vcenter NSX with OSPF

References: Cross Vcenter NSX Design Guide Intra area routes versus inter area routes In one of the earlier posts, we have covered running OSPF in NSX domain. Here we try to cover running OSPF in a Cross Vcenter NSX setup. In the above topology: 1. There are two NSX managers. Primary NSX manager … Continue reading Cross Vcenter NSX with OSPF


Vrealize Network Insight 3.8 Installation

References:   VRNI Architecture:   Installation Guide:   This installation is broken down into two parts: - One for platform & - The other for Collector aka Proxy. During the deployment of OVA for Platform & Proxy, you will use Thin Provision as the virtual disk format. 1. The first step with regards … Continue reading Vrealize Network Insight 3.8 Installation

NSX Edge Load Balancer – One Arm Mode

In the topology above, NSX edge load balancer is deployed in one arm mode. NSX edge load balancer has a single layer 3 interface which is connected to Distributed Logical Router via a logical switch. This logical switch is dedicated for Load Balancing Tier. There is also a Web Tier hosting web servers and these … Continue reading NSX Edge Load Balancer – One Arm Mode

OSPF Routing Protocol in NSX

OSPF NSX         The above topology illustrates OSPF Totally NSSA setup in NSX domain.   Distributed logical router is handling east-west traffic within the data center while the edges E1 and E2 are handling north-south traffic.   Edges E1 and E2 are configured in ECMP mode which allows more bandwidth to flow … Continue reading OSPF Routing Protocol in NSX

Usage of VXLAN and VXLAN traffic flow

Traditionally, VLANs / Virtual LANs have been used to segment broadcast domains. Such segmentation has been beneficial due to numerous benefits: Smaller broadcast domains means fewer hosts that will process broadcasts from other hosts. This also saves CPU and memory of all involved devices in a broadcast domain. These VLANs are nowadys being replaced by … Continue reading Usage of VXLAN and VXLAN traffic flow

VMWare NSX Distributed Firewall

We tried to cover VXLAN and VXLAN traffic flow earlier. Every solution has three main components to it - Management, Control and Data Plane. NSX Manager is the management component of VMware NSX solution We now try to know more about Data Plane components of NSX. Data Plane of NSX has: ·         Logical Switch ·         … Continue reading VMWare NSX Distributed Firewall

IP Routing Process

IP routing process is a fundamental concept in networks. Having a clear understanding of IP routing process helps network engineers troubleshoot complex network problems. A good hold of this concept also helps determine end to end traffic flow from any given source IP towards target IP. Below are key steps when traffic from source tries … Continue reading IP Routing Process

OSPF – Auto Cost Reference Bandwidth feature in Cisco IOS

  In the case of OSPF, the OSPF metric – Cost is inversely proportional to interface bandwidth. Meaning, the higher bandwidth link on your device will have lower cost. But OSPF by default is unable to differentiate the cost properly for a device that has both TenG and Gig interfaces. The reason why OSPF is … Continue reading OSPF – Auto Cost Reference Bandwidth feature in Cisco IOS