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Network Virtualization in Windows Server 2012
1. LAI YOONG SENG, MVP VIRTUAL MACHINE
REDYNAMICS LAIYS@REDYNAMICS.COM
2. Session Objective and Takeaways
Session Objectives: Key Takeaways
• Understand different scenario • Networking in Windows Server
on the usage of Networking in 2012 is engineered for the
Windows Server 2012 networking habits of highly
• Demo successful clouds
3. Customer Scenario Goals
Dynamic memory Network Larger virtual Open, extensible
increase assigned
virtualization for machines to support switch to help
to virtual machines
multitenancy and IP increased workloads support security and
to increase capacity portability management needs
with no downtime
4. NETWORKING SOLUTION THAT DELIVER
CONTINUOUS APPLICATION AVAILABILITY
Automatically
Consistent remediate issues
bandwidth for with no human
DHCP Quality of
services intervention
failover Service
5. IP Address Continuity With DHCP
Failover
Automatically
replicates and Inbox support for
load balances failover without
DHCP scopes cluster
Active/Active or
Active /Passive
5
6. Network QOS
Guarantee
predictable Help enforce
network customer SLAs
performance & and maximum
fair share pricing caps
Support
bandwidth floors
& Bandwidth caps
8. HIGH PERFORMANCE NETWORKING
Ensure that High Speed data
Single Root
networking is no transfer on
I/O
longer the industry standard SMB Direct
Virtualization
bottleneck hardware
(SR-IOV) (RDMA)
9. SR-IOV Support in Hyper-V
Virtual machine
Network stack
Software NIC Virtual function (VF)
Increase network Reduce network
throughput latency
Hyper-V Extensible Switch
Reduces host CPU overhead for
processing network traffic
SR-IOV network adapter VF VF VF
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10. Improved Network Performance through SMB
Direct (RDMA)
Without RDMA
With RDMA
File Client File Server
App Higher performance through
Buffer
offloading of network I/O processing
SMB SMB
Buffer Buffer
High
OS OS
Buffer Buffer Remote storage at throughput
the speed of with low
Driver
Buffer
Driver
Buffer direct storage latency
iWARP
Adapter Adapter
Buffer rNIC
NIC rNIC
NIC Buffer
InfiniBand
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11. OPERATIONAL EFFICIENCY
Manage IP
Simplify data
transfer in
address space
& consolidate IP Address
multisite Branch
external tools Management
environments
(IPAM) Cache
12. IP Address Management (IPAM)
Inbox feature for
integrated
Integrate with
management of Microsoft DNS
IP Address & DHCP
Custom IP
Address space Audit Server
display configuration
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13. Branch Cache
Cache content Improve
from file & web
servers on a
performance
WAN in local & bandwidth
branch office saving
Scalability – Host
multiple cache
servers in single
location
14. MULTITENANT & RICHER ECOSYSTEM
Provide an
Simply infrastructure
network that we can Hyper-V Network
isolation build on Virtualization
Provide a wide range of choices to Hyper-V
meet customer needs Extensible Hardware
Switch Partner
15. Hyper-V Network Virtualization
Blue sees Orange sees
SQL Server Web SQL Server Web
Isolate traffic Cross Subnet
10.1.1.1 10.1.1.2 10.1.1.1 10.1.1.2
without VLAN 10.1.1.1 192.168.1.10 10.1.1.1 192.168.1.11 Migration
10.1.1.2 192.168.2.12 10.1.1.2 192.168.2.13
Server Virtualization Network Virtualization
What’s really happening
• Run multiple virtual 192.168.n.n • Run multiple virtual
servers on a physical networks on a physical
server PROVIDER ADDRESS SPACE (PA) network
• Each virtual machine 192.168.1.10
192.168.1.11
192.168.2.12
192.168.2.13
• Each virtual network
acts as though it is acts as though it is
running as a physical running as physical
10.1.1.1 192.168.1.10 10.1.1.1 192.168.1.11 10.1.1.1 192.168.1.11 10.1.1.1 192.168.1.10
server 10.1.1.2 192.168.2.12 10.1.1.2 192.168.2.13 10.1.1.2 192.168.2.13 10.1.1.2 192.168.2.12
fabric
10.1.1.1 10.1.1.1 10.1.1.2 10.1.1.2
SQL Server SQL Server Web Web
CUSTOMER ADDRESS SPACE
17. Extending the Hyper-V Extensible
Switch
Manageability
• Windows PowerShell and scripting support Extensibility features
Extension monitoring
• Unified tracing and enhanced diagnostics
Extension uniqueness
Extensions that learn virtual machine
life cycle
Benefits Extensions that can veto state changes
• Open platform to fuel plug-ins Multiple extensions on same switch
• Free core services Integration with built-in features
• Windows reliability/quality
Ability to capture extensions
• Unified management
• Easier support
• Live migration support
21. Virtual
Lai’s Blog
Q&A
www.ms4u.info
DOWNLOAD Windows
MVUG User Group
Server 2012
https://www.facebook.com/g http://technet.microsoft.com/en-
roups/mvuggroup/ us/evalcenter/hh670538.aspx
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Editor's Notes
We are to group into scenario:-Ensure network solution that deliver continues app availability. Ensure support on multi tenant such as support conflict domain / ip address Leverage on existing and new hardware to get the best performance networkingWe talk about the rich partner in the market that support networking
1st ScenarioGoals isNo interruption to your servicesEnsure consistent bandwidth available to your services. Automation to remediate issue without user interventionFinally we want to make sure that we support different vendor in networking.
Next we are going to talk was DHCP Server. In the past, we always configure 80:20 rules. Mean 80% ip to 1 server and another 20% ip in another server.Let say if primary server down, you may not have enough ip to serve to your client. Therefore in Win2012. We provide HA DHCP Server by provide more than 1 DHCP ServerYou can setupA/A or A/PYou can have 1 DHCP in Primary site and 1 DHCP in Secondary Site.In case server, server down, the secondary DHCP will take over.If you setup A/A, both server will load balance itself to distribute IP. And cool is you do no need to setup clustering.
Move on QOS. Let say you use virtualization. 1 NIC share with 4 VM. Some VM coz problem.With Win2012, you can configure Max & Min Bandwidth.Min Bandwidth always ensure your services will always get adequate bandwidthThen Max Bandwidth setting, ensure that we configure the cap (limit) to avoid interruption to other VM.
In this scenario, we are looking into high performance networkingGoal:-No buffer. Slight buffer is not acceptable in the SLADeliver high speed data transfer
Example:- When we transfer data from VM to other VM. It will go from VM NIC to Hyper-V Virtual Switch to Physical NIC.With SR-IOV we open virtual function. The VM can talk direct to physical NIC bypass your Hyper-V Switch.This give you high performance as same as running a physical server.RequirementsTo take advantage of the new Hyper‑V features for host scale and scale-up workload support, you need the following:One or more Windows Server 2012 installations with the Hyper‑V role installed. Hyper‑V requires a server that provides processor support for hardware virtualization.The number of virtual processors that may be configured in a virtual machine depends on the number of processors on the physical machine. You must have at least as many logical processors in the virtualization host as the number of virtual processors required in the virtual machine. For example, to configure a virtual machine with the maximum of 32 virtual processors, you must be running Hyper‑V in Windows Server 2012 on a virtualization host that has 32 or more logical processors.SR-IOV networking requires the following:A host system that supports SR-IOV (such as Intel VT-d2), including chipset support for interrupt and DMA remapping and proper firmware support to enable and describe the platform’s SR-IOV capabilities to the operating system.An SR-IOV–capable network adapter and driver in both the management operating system (which runs the Hyper‑V role) and each virtual machine where a virtual function is assigned.
SMB Direct. Without attach FC attached storage, we can also achieve high performance storage.Example:- FS Client & FS ServerIt will go through different layer and Data break into smaller packet and transfer between S & C. All this consume a lot of CPU utilization.To solve this problem, with RDMA compliant network adapter, we can bypass network layer & give full performance capacity. It will bypass CPU & give it to do other thing.RDMA compatibility is currently limited to InfiniBand, iWARP, and RoCE (RDMA over Converged Ethernet)RDMA wont work in Win 2012 NIC Teaming. But MPIO and SMB Multi Channel are preferred.
Next scenarioOur goal isTo build script for automation Able to identify the resources use for chargebackMinimize bandwidth transfer in multi site environment.Able to centrally control and monitor DNS & DHCP in your organizationHow do we enable this?
Now let look into IP Address management. Previously we setup DHCP & DNS and we cannot centralized manage the IP. Especially when you have a multisite, it is difficult for you to monitor available IP.We want to address this by install IPAM which going to discover your entire DHCP & DNS in your multisite environment.You can also monitorAvailable IPUsed IPStatic IPConfigure scope for your DHCP
Next feature is Branch Cache. It allow to you to have centralize data in primary site and customer at remote site will be able to access the data.The data is cache in a dedicated server or client computer. This allow you to save more bandwidth in your environment with less data transferNo configuration in client machine. You just need to configure GPO. Branch cache is now integrate with data dedup, you will have saving of data transfer as well.
Final scenario:- Look at richer ecosystemGoal is:Work with various partnerWe built a foundation for partner to leverage on.With 2 goal, we want to have variety of choice for customer to choose.
Let move to Hyper-V Network Virtualization.Everyone know about Hyper-V which help you to do Server Virtualization. Yesterday @Singapore launching about Storage Virtualization.Today, we are going to have Network Virtualization.Here we got 2 different set of VM: Blue VM & Orange VM hosted in the single network (both is using the same IP Address and overlap in the same physical network)Here, we are the 1st to come out with network virtualization whereby each VM will have their own VM network without causing conflict . We can do this byIsolation traffic without VLAN – Keep customers on the same server but on different IP subnetsCross Subnet Migration – Move a VM to a new subnet without changing the IP address in the VMHow we do it:-NVGREIP Address rewrite
The 1st is we built Hyper-V Virtual Switch. Then we open our system and built the switch extensible to allow partner such as Cisco, InFlow, NEC ,5Nine, etc to build plug in and additional add-on.With this we add new functionality such as monitoring, forwarding, and filtering to the virtual switch.
We have talked about various features, next is who is the partner who provide and support these features.RDMABranch CacheHyper-Extensible SwitchNV
