9.0

VMware, Inc. 9
Chapter 1 About VMCI Sockets
Security of VMCI Sockets
VMCISocketsaremoresecureaftereliminationofguesttoguestcommunications.ForanoverviewofVMCI
security,seeChapter 5,“SecurityoftheVMCIDevice,”onpage 23.
Use Cases for VMCI Sockets
VMCIsocketscanhelpwiththefollowingsolutions:
 Implementnetwork‐basedcommunicationforoff‐the‐networkvirtualmachines
 Improvetheprivacyofdatatransmissiononhostedvirtualmachines
 Increasehost‐guestperformanceofsocket‐modifiedapplicationsanddatabases
 Implementafasthost‐guestfilesystem
 Provideanalternativedatapathforaccesstoandmanagementofguestvirtualmachines
RabbitMQ with Stream VMCI Sockets
OntheESXihostinFigure 1‐1,twovirtualmachinescontainamessagequeuingclientthatcommunicateswith
aguestproxythroughamqplib.GuestproxiescommunicatewiththehostproxyoverVMCISockets,which
treateachguestconnectionasaseparatesession.Thehostproxymultiplexesthesesessionsandcommunicates
withtheRabbitMQproxyov
erasingleTCP/IPsocket,passingencapsulatedAMQP.ARabbitMQnoderuns
onavirtualmachine.TheRabbitMQclusterisacollectionofRabbitMQnodesthatareassembledforreliability
andscaling.TheAMQPproxysplits‐outmultiplexedsessionsofindividualconnectionstoaRabbitMQnode.
Allthista
kesplaceonthemanagementnetwork,reducingtrafficontheguestnetwork.
Figure 1-1. ESXi host with Stream VMCI Sockets and RabbitMQ
Originatedin2003,AMQP(advancedmessagequeuingprotocol)isanindustrystandardforpassingbusiness
messagesbetweenapplicationsandorganizations.Itispopularinthebankingandfinanceindustries.
ESXi
Client
amqplib
Client
amqplib
VM
vmx
Guest
proxy
VMCI
Host
proxy
VMCI
Management network
Guest network
AMQP
AMQP
proxy
RabbitMQ
Cluster
Node
Node
Encapsulated
AMQP
RabbitMQ components
Middleware components
VM
vmx
Guest
proxy