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New and Changed Information for this Release
The following table provides an overview of the significant changes to this guide for this current release. The table does not provide an exhaustive list of all changes made to the configuration guides or of the new features in this release.
New and Changed Information
This section lists new and changed content in this document by software release.
To find additional information about new features or command changes, see the Cisco Nexus 1000V Release Notes and Cisco Nexus 1000V Command Reference.
Table 1 New and Changed Features for the Cisco Nexus 1000V Interface Configuration Guide Feature
Description
Changed in Release
Where Documented
Port channel vPC-HM
The interface level configuration mode does not support sub-group cdp and manual options for port-channel vPC-HM configuration.
Note Sub-group cdp and manual options for port-channel vPC-HM configuration are supported on the port-profile level configuration.
4.2(1)SV2(1.1)
Backup subgroups
You can assign up to seven backup subgroups when pinning the primary subgroup.
4.2(1)SV1(4a)
Port channel relative numbering
The subgroup numbering begins at zero and is not tied to the vmnic number.
4.2(1)SV1(4a)
Network state tracking for vPC-HM
Pinpoints link failures on a port channel configured for vPC-HM.
4.2(1)SV1(4)
VEM management of LACP
You can offload operation of the LACP protocol from the VSM to the VEMs.
4.2(1)SV1(4)
LACP
You can enable the LACP port channel function by turning on the feature using the feature lacp command.
4.2(1)SV1(4)
System Jumbo MTU
The system jumbo MTU value is fixed at 9000 and cannot be changed.
4.2(1)SV1(4)
Interface MTU
You can configure an interface MTU between 1500 and 9000.
4.2(1)SV1(4)
Mapping vEthernet interfaces to connected ports
vEthernet interfaces are now mapped to connected ports by MAC address as well as the DVPort number.
4.2(1)SV1(4)
Global vEthernet interface controls
You can enable or disable the automatic vEthernet interface controls by deleting unused vEthernet interfaces, purging manual vEthernet configurations, and creating vEthernet interfaces.
4.2(1)SV1(4)
Configuration limits
Configuration limits for vEthernet interfaces, vEthernet trunks, and port profiles were added.
4.0(4)SV1(2)
show interface vethernet command
The show interface vethernet command now displays 5 minute input and output packet/bit rate statistics for the interfaces that you specify. The configuration example showing this command output was updated to reflect this change.
The show interface ethernet command output also provides these new statistics.
4.0(4)SV1(2)
vPC-Host Mode
Support for manual creation of subgroups.
4.0(4)SV1(2)
Static Pinning
Support for attaching (or pinning) a vEthernet interface to a specific port channel subgroup.
4.0(4)SV1(2)