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This chapter includes the following sections:
•Information About Microsoft Network Load Balancing
•Configuring vEths for Running Microsoft Load Balancing in (Default) Unicast Mode
•Feature History for Microsoft Network Load Balancing for Ethernet
Microsoft NLB is a clustering technology offered by Microsoft as part of the Windows server operating systems. Clustering enables a group of independent servers to be managed as a single system for higher availability, easier manageability, and greater scalability.
For more information about Microsoft Network Load Balancing. See this URL:
http://technet.microsoft.com/en-us/library/bb742455.aspx
Note Access to third-party websites identified in this document is provided solely as a courtesy to customers and others. Cisco Systems, Inc. and its affiliates are not in any way responsible or liable for the functioning of any third-party website, or the download, performance, quality, functioning or support of any software program or other item accessed through the website, or any damages, repairs, corrections or costs arising out of any use of the website or any software program or other item accessed through the website. Cisco's End User License Agreement does not apply to the terms and conditions of use of a third-party website or any software program or other item accessed through the website.
This section includes the following topics:
•Configuring Microsoft Network Load Balancing Support in Interface Configuration Mode
•Configuring Microsoft Network Load Balancing in Port Profile Configuration Mode
•no mac auto-static-learn config is not supported on PVLAN ports.
•no mac auto-static-learn config is not supported on the ports configured with switchport port-security mac-address sticky.
•On Microsoft Network Load Balancing (MS-NLB) enabled vEthernet interfaces , Unknown Unicast Flood Blocking (UUFB) does not block MS-NLB related packets. In these scanarios, UUFB can be used to limit flooding of MS-NLB packets to non-MS-NLB ports within a VLAN.
You can configure Microsoft Network Load Balancing in interface configuration mode.
Before beginning this procedure, you must know or do the following:
Note Make sure that the Cisco Nexus 1000V is configured before you configure Microsoft NLB on Windows virtual machines (VMs).
•You are logged in to the CLI in EXEC mode.
•Unicast is the default Microsoft Network Load Balancing mode of operation.
•Microsoft NLB replaces the MAC address of each server in the cluster to a common Microsoft NLB MAC address.
1. configure terminal
2. show running-config interface veth number
3. int veth 1
4. [no] mac auto-static-learn
5. (Optional) copy running-config startup-config
The following example shows how to configure Microsoft Network Load Balancing directly on vEthernet:
n1000v(config)# int vethernet 1
n1000v(config-if)# no mac auto-static-learn
n1000v(config-if)#
n1000v(config-if)# show run int vethernet 1
!Command: show running-config interface Vethernet1
!Time: Tue Nov 15 19:01:36 2011
version 4.2(1)SV1(5.1)
interface Vethernet1
inherit port-profile vm59
description stc3, Network Adapter 2
no mac auto-static-learn
vmware dvport 34 dvswitch uuid "ea 5c 3b 50 cd 00 9f 55-41 a3 2d 61 84 9e 0e c4"
vmware vm mac 0050.56B3.0071
The following example shows how to unconfigure Microsoft Network Load Balancing directly from vEthernet:
n1000v(config)# int vethernet 1
n1000v(config-if)# mac auto-static-learn
n1000v(config)# show run int vethernet 1
!Command: show running-config interface Vethernet1
!Time: Tue Nov 15 19:01:52 2011
version 4.2(1)SV1(5.1)
interface Vethernet1
inherit port-profile vm59
description stc3, Network Adapter 2
mac auto-static-learn
vmware dvport 34 dvswitch uuid "ea 5c 3b 50 cd 00 9f 55-41 a3 2d 61 84 9e 0e c4"
vmware vm mac 0050.56B3.0071
n1000v(config)#
You can configure Microsoft Network Load Balancing in port profile configuration mode.
Before beginning this procedure, you must know or do the following:
Note Make sure that the Cisco Nexus 1000V is configured before you configure Microsoft NLB on Windows virtual machines (VMs).
•You are logged in to the CLI in EXEC mode.
•Unicast is the default Microsoft Network Load Balancing mode of operation.
•Microsoft Network Load Balancing replaces the MAC address of each server in the cluster to a common Microsoft NLB MAC address.
1. configure terminal
2. show running config port-profile <profile name>
3. port-profile type vethernet ms-nlb
4. [no] mac auto-static-learn
5. (Optional) copy running-config startup-config
The following example shows how to configure Microsoft Network Load Balancing in port profile mode:
n1000v(config)# port-profile type vethernet ms-nlb
n1000v(config-port-prof)# vmware port-group
n1000v(config-port-prof)# switchport mode access
n1000v(config-port-prof)# switchport access vlan 59
n1000v(config-port-prof)# no mac auto-static-learn
n1000v(config-port-prof)# no shutdown
n1000v(config-port-prof)# state enabled
n1000v(config-port-prof)#
n1000v(config-port-prof)# show run port-profile ms-nlb
!Command: show running-config port-profile ms-nlb
!Time: Tue Nov 15 19:00:40 2011
version 4.2(1)SV1(5.1)
port-profile type vethernet ms-nlb
vmware port-group
switchport mode access
switchport access vlan 59
no mac auto-static-learn
no shutdown
state enabled
The following example shows how to unconfigure Microsoft Network Load Balancing on vEthernet in port profile mode:
n1000v(config)# port-profile type vethernet ms-nlb
n1000v(config-port-prof)# mac auto-static-learn
n1000v(config-port-prof)# show run port-profile ms-nlb
!Command: show running-config port-profile ms-nlb
!Time: Tue Nov 15 19:01:05 2011
version 4.2(1)SV1(5.1)
port-profile type vethernet ms-nlb
vmware port-group
switchport mode access
switchport access vlan 59
mac auto-static-learn
no shutdown
state enabled
This section provides the release history for Network Load Balancing for Ethernet.
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Network Load Balancing |
4.2(1)SV1(5.1) |
This feature was introduced. |