Optimizing and Troubleshooting Hyper-V Networking

✍ Scribed by Mitch Tulloch, The Windows Server Team

• Publisher: Microsoft Press
• Year: 2013
• Tongue: English
• Leaves: 132
• Category: Library

✦ Synopsis

This scenario-focused title provides concise technical guidance and insights for troubleshooting and optimizing networking with Hyper-V. Written by experienced virtualization professionals, this little book packs a lot of value into a few pages, offering a lean read with lots of real-world insights and best practices for Hyper-V networking optimization in Windows Server 2012.

• Focused guide extends your knowledge and capabilities with Hyper-V networking in Windows Server 2012
• Shares hands-on insights from a team of Microsoft virtualization experts
• Provides pragmatic troubleshooting and optimization guidance from the field

✦ Table of Contents

Cover
......Page 1
Contents......Page 3
Introduction......Page 6
About the contributors......Page 7
Errata & book support......Page 9
Stay in touch......Page 10
Best practices......Page 11
VLAN concepts and troubleshooting......Page 12
MAC addresses and virtual guests......Page 13
Network card drivers......Page 14
Additional resources......Page 15
Using Performance Monitor......Page 16
Virtual network adapters......Page 21
Virtual switch......Page 22
Example: Exhausted bandwidth......Page 23
Additional resources......Page 27
Reducing network downtime with rich diagnostics in Hyper-V virtual switch......Page 28
System event log......Page 29
Diagnostic event log and packet capture......Page 30
Packet capture within vmswitch......Page 31
Additional resources......Page 33
Port mirroring example......Page 34
Additional resources......Page 37
Hyper-V and MAC addresses......Page 38
Duplicate MAC addresses......Page 39
MAC address behavior during live migration......Page 40
Duplicate MAC addresses on a standalone host......Page 41
Additional resources......Page 42
SR-IOV Overview......Page 43
How SR-IOV works......Page 44
Enabling SR-IOV......Page 46
Enabling the guest operating system......Page 49
Implementing network redundancy......Page 50
Troubleshooting SR-IOV......Page 51
Additional resources......Page 56
Synthetic FC and NPIV......Page 57
Additional resources......Page 65
Resiliency......Page 66
Optimizing cluster health monitoring for transient cluster network failures......Page 67
Which networks are used for CSV redirected traffic?......Page 68
Additional resources......Page 69
Windows Server 2012 SMB Multichannel and CSV Redirected traffic caveats......Page 70
The new way: Windows Server 2012 cluster network roles and metrics......Page 71
How SMB Multichannel changes the behavior to select the CSV cluster network......Page 74
Additional resources......Page 75
Scenario overview......Page 76
Option 1: Consolidated network (single NIC team)......Page 77
Option 2: Multiple physical networks (many teams)......Page 80
Additional resources......Page 81
Guidance on Hyper-V networking for a multitenant IaaS environment......Page 82
Physical separation......Page 83
Layer 2 and Layer 3 isolation......Page 85
NIC Teaming......Page 88
Additional resources......Page 90
Example: Running out of virtual machine queues......Page 91
Additional resources......Page 92
Hyper-V Replica configuration troubleshooting......Page 93
Additional troubleshooting steps......Page 95
Additional resources......Page 104
Troubleshooting why two virtual machines on the same virtual machine network but different hosts can’t communicate......Page 105
Step 1: Check that each virtual machine has the same VirtualSubnetId......Page 107
Step 2: Check that the lookup records are correct on each host for the virtual machines......Page 108
Step 3: Check that a WNV subnet gateway address exists on each host for the virtual machines......Page 109
Step 5: Check that each virtual machine’s host has the same provider address that was specified in the lookup records......Page 110
Step 6: Check that the provider routes are correct on each host......Page 111
Step 7: Check that each host has Network Virtualization bound to a network adapter......Page 112
Putting it all together......Page 113
Tracing the VMM Network Virtualization components......Page 115
Use Windows PowerShell to display configuration......Page 116
Tracing VmSwitch and WNV......Page 119
Enable debug logging in System Center 2012 VMM SP1......Page 121
VMM DHCP Server tracing......Page 122
Additional resources......Page 124
Automating the setup of a large number of Hyper-V hosts......Page 125
Additional resources......Page 129
The solution......Page 130
Additional resources......Page 131
Survey page......Page 132