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This chapter contains the following sections:
The following table provides an overview of the significant changes made to this configuration guide. The table does not provide an exhaustive list of all changes made to this guide or all new features in a particular release.
Feature |
Description |
Added or Changed in Release |
Where Documented |
---|---|---|---|
vPC Fast Convergence |
A New CLI has been added to enable/disable the vPC optimizations feature. |
6.0(2)U6(4) |
|
IPv6 over v4 GRE Tunneling |
IPv6 in IPv4 with GRE header is now supported. |
6.0(2)U6(1) |
|
QSFP+ (40-Gb) transceiver |
A new QSFP+ (40-Gb) transceiver is now supported on the Cisco Nexus 3000 Series switches. It has to be used in 4 x 10G mode with splitter cable and LR optics. |
6.0(2)U5(1) |
|
Default port mode changed |
Starting with Release 6.0(2)U5(1), the default port mode on Cisco Nexus 3132Q and Cisco Nexus 3132CR Series switches after write erase is 32x40G mode. |
6.0(2)U5(1) |
|
Global knob for auto-negotiation disable |
You can disable auto-negotiation on all 40G interfaces. |
6.0(2)U5(1) |
|
MAC-Embedded IPv6 Address |
Introduced the MEv6 feature. |
6.0(2)U4(1) |
|
Statistics Collection on Interfaces |
Introduced the load-interval command to change the sampling interval for statistics collections on interfaces. |
6.0(2)U4(1) |
|
DHCP Client Configuration |
You can now configure the IPv4 or IPv6 address of a DHCP client on a management interface, or a physical Ethernet interface. |
6.0(2)U4(1) |
|
VXLAN |
VXLANs extend Layer 2 networks across the Layer 3 infrastructure using MAC-in-UDP encapsulation and tunneling for Cisco Nexus 3100 Series switches. |
6.0(2)U3(2) |
|
Resilient Hashing |
Added support for Cisco Nexus 3172 switches. Resilient hashing maps traffic flows to physical ports and redistributes traffic from failed links uniformly across the working links. |
6.0(2)U3(1) |
|
Downlink Delay |
This feature enables you to operationally enable uplink SFP+ ports before downlink RJ-45 ports after a reload on a Cisco Nexus 3048 switch. |
6.0(2)U3(1) |
|
DHCP Client Configuration |
You can configure the IP address of a DHCP client on SVIs by using the ip address dhcp command. |
6.0(2)U3(1) |
DHCP Client Discovery |
Dynamic Port Breakout for Cisco Nexus 3172 |
The dynamic breakout feature is now supported by Cisco Nexus 3172. |
6.0(2)U2(3) |
|
Symmetric Hashing |
Symmetric hashing enables bidirectional traffic to use the same physical interface and maps each physical interface in the port channel to a set of flows. |
6.0(2)U2(3) |
|
Resilient Hashing |
Resilient hashing maps traffic flows to physical ports and redistributes traffic from failed links uniformly across the working links. |
6.0(2)U2(1) |
|
Hashing for NVGRE Traffic |
Hashing for NVGRE traffic allows the switch to include the GRE Key field present in the GRE header in hash computations when NVGRE traffic is forwarded over a port channel or an Equal Cost Multipath (ECMP). |
6.0(2)U2(1) |
|
Dynamic Port Breakout for Cisco Nexus 3132 |
|
6.0(2)U2(1) |
|
Consistency Checkers |
|
6.0(2)U2(1) |
|
SVI Autostate Disable |
The SVI Autostate Disable feature enables the Switch Virtual Interface (SVI) to be in the “up” state even if no interface is in the “up” state in the corresponding VLAN. |
6.0(2)U2(1) |
|
IP-in-IP encapsulation and decapsulation tunnel support |
The IP-in-IP encapsulation and decapsulation tunnel support allows you to configure the way in which encapsulated packets are sent from and delivered to tunnel interfaces. |
6.0(2)U2(1) |
|
Reset interface configuration to the default configuration |
The default interface command allows you to reset an interface to its default configuration. |
6.0(2)U2(1) |
|
Allow mac-address change for SVI and routed port |
You can change the default MAC address of the Layer 3 interface by using the mac-address command from the interface configuration mode. |
6.0(2)U2(1) |
|
Configuring Q-in-Q VLAN Tunnels |
Added support for Q-inQ VLAN tunnels. |
6.0(2)U1(1) |