Upgrading everyday security Commpact Uživatelský manuál stáhnout pdf (Strana 10)

NSX Manager

The NSX Manager is the centralized network management component of NSX, and is installed as a virtual

appliance on any ESX™ host in your vCenter Server environment. It provides an aggregated system view.

One NSX Manager maps to a single vCenter Server environment and multiple NSX Edge, vShield Endpoint,

and NSX Data Security instances.

NSX vSwitch

NSX vSwitch is the software that operates in server hypervisors to form a software abstraction layer

between servers and the physical network.

As the demands on datacenters continue to grow and accelerate, requirements related to speed and access to

the data itself continue to grow as well. In most infrastructures, virtual machine access and mobility usually

depend on physical networking infrastructure and the physical networking environments they reside in.

This can force virtual workloads into less than ideal environments due to potential layer 2 or layer 3

boundaries, such as being tied to specific VLANs.

NSX vSwitch allows you to place these virtual workloads on any available infrastructure in the datacenter

regardless of the underlying physical network infrastructure. This not only allows increased flexibility and

mobility, but increased availability and resilience.

NSX Controller

NSX controller is an advanced distributed state management system that controls virtual networks and

overlay transport tunnels.

NSX controller is the central control point for all logical switches within a network and maintains

information of all virtual machines, hosts, logical switches, and VXLANs. The controller supports two new

logical switch control plane modes, Unicast and Hybrid. These modes decouple NSX from the physical

network. VXLANs no longer require the physical network to support multicast in order to handle the

Broadcast, Unknown unicast, and Multicast (BUM) traffic within a logical switch. The unicast mode

replicates all the BUM traffic locally on the host and requires no physical network configuration. In the

hybrid mode, some of the BUM traffic replication is offloaded to the first hop physical switch to achieve

better performance.

NSX Edge

NSX Edge provides network edge security and gateway services to isolate a virtualized network. You can

install an NSX Edge either as a logical (distributed) router or as a services gateway.

The NSX Edge logical (distributed) router provides East-West distributed routing with tenant IP address

space and data path isolation. Virtual machines or workloads that reside on the same host on different

subnets can communicate with one another without having to traverse a traditional routing interface.

The NSX Edge gateway connects isolated, stub networks to shared (uplink) networks by providing common

gateway services such as DHCP, VPN, NAT, dynamic routing, and Load Balancing. Common deployments

of NSX Edge include in the DMZ, VPN Extranets, and multi-tenant Cloud environments where the NSX

Edge creates virtual boundaries for each tenant.

NSX Installation and Upgrade Guide

10 VMware, Inc.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 57 58

Žádné komentáře

Upgrading everyday security Commpact Uživatelský manuál Strana 10