New and Changed Information

This chapter provides release-specific information for each new and changed feature in the Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide.

New and Changed Information

Table 1. New and Changed Features for Release 9.3(x)

Feature

Description

Changed in Release

Where Documented

Layer 3 router over vPC

Added creation of syslog when peer-gateway and layer 3 peer-router commands are not configured on both the vPC peers in the vPC domain.

9.3(9)

Guidelines and limitations

BFD multi hop/single hop session

A new command bfd [multihop | singlehop] is introduced.

9.3(6)

Configuring BFD on BGP

Multicast and Broadcast Subinterface Counters

Added support for Cisco Nexus N9K-C9336C-FX2 and N9K-C93240YC-FX2 switches.

9.3(6)

Configuring Subinterface Multicast and Broadcast Counters

Guidelines and Limitations for Layer 3 Interfaces

IP Unnumbered on SVI Secondary VLAN on the Gateway

Added support for IP unnumbered on the secondary SVI in the gateway on Cisco Nexus N9K-C9316D-GX, N9K-C93600CD-GX and N9K-C9364C-GX switches.

9.3(6)

Configuring IP Unnumbered on SVI Secondary VLAN on the Gateway

100M Half-Duplex support

Added support for Cisco N9K-C9348GC-FXP and N9K-C92348GC-X switches.

9.3(6)

Guidelines and Limitations
NAT

Added support for Cisco Nexus N9K-C9316D-GX, N9K-C93600CD-GX and N9K-C9364C-GX switches.

9.3(5)

Configuring FINRST and SYN Timers

Sub interface support range from 1-4094

Added support for Cisco Nexus N9K-C9316D-GX, N9K-C93600CD-GX and N9K-C9364C-GX switches.

9.3(5)

Configuring a Subinterface on a Routed Interface
Selective Q-in-Q with Multiple Provider VLANs

Added support for Selective Q-in-Q with Multiple Provider VLANs on Cisco Nexus N9K-C9316D-GX, N9K-C93600CD-GX and N9K-C9364C-GX switches.

9.3(5)

Guidelines and Limitations for Selective Q-in-Q with Multiple Provider VLANs

IPv6 Flow Label Hashing

Added support for Cisco Nexus N9K-C9316D-GX, N9K-C93600CD-GX and N9K-C9364C-GX switches.

9.3(5)

Configuring ECMP Load Balancing
IP Load Sharing Options

Added support for Cisco Nexus N9K-C9316D-GX, N9K-C93600CD-GX and N9K-C9364C-GX switches.

9.3(5)

Configuring ECMP Load Balancing
SVI and Subinterface Ingress/Egress Unicast Counters

Added support for Cisco Nexus N9K-C9316D-GX, N9K-C93600CD-GX and N9K-C9364C-GX switches.

9.3(5)

Configuring SVI and Subinterface Ingress/Egress Unicast Counters

Multiple VRFs for Tunnel Decapsulation

Added support for Cisco Nexus N9K-C9316D-GX, N9K-C93600CD-GX and N9K-C9364C-GX switches.

9.3(5)

Guidelines and Limitations

Breakout Support Added 2x50G breakout support for Cisco Nexus N9K-C93600CD-GX and N9K-C9364C-GX devices.

9.3(5)

Breakout port support on Cisco Nexus switches

Breakout features on Cisco Nexus 9000 C93600CD-GX switches

Breakout considerations for Cisco Nexus 9000 C9364C-GX switch

Optics Support: 10G BASE-T SFP+ Added support for 10G BASE-T SFP+ on Cisco Nexus N9K-C93240YC-FX2, N9K-C93180YC-EX, N9K-C93180YC-FX and N9K-C93360YC-FX2 devices.

9.3(5)

Cisco SFP-10G-T-X modules

Configure media-type for SFP-10G-T-X transceivers

Verify media-type

Unidirectional Ethernet Added support for Unidirectional Ethernet on Cisco Nexus 9500 switches with X97160YC-EX line cards.

9.3(5)

Unidirectional Ethernet

Best practices for Unidirectional Ethernet configuration

Configure Unidirectional Ethernet

Cisco Nexus 9364C-GX Switch Breakout

Added 4x10G and 4x25G breakout support for Cisco Nexus N9K-C9364C-GX Switches.

9.3(3)

Breakout considerations for Cisco Nexus 9000 C9364C-GX switch

Cisco Nexus 93600CD-GX Switch Breakout

Added breakout support for Cisco Nexus 93600CD-GX Switches

9.3(3)

Breakout port support on Cisco Nexus switches

Breakout features on Cisco Nexus 9000 C93600CD-GX switches

SVI and Subinterface Ingress/Egress Unicast Counters Added support for SVI and subinterface unicast counters on Cisco Nexus 9300-EX, 9300-FX/FX2 switches; and Cisco Nexus 9500 series switches with X9700-EX|X9700-FX line cards.

9.3(3)

Configuring SVI and Subinterface Ingress/Egress Unicast Counters

Guidelines and Limitations for Layer 3 Interfaces

GTP Tunnel Load Balancing Added support for Cisco Nexus 9500 platform switches with 9700-EX and 9700-FX line cards.

9.3(3)

GTP Tunnel Load Balancing

IPv6 Multihop BFD Added support for Cisco Nexus 9300-GX switches.

9.3(3)

SVI Statistics on Layer 3

Added support to display SVI statistics on layer 3 on Cisco Nexus 3100 series switches.

9.3(3)

Configuring SVI TCAM Region

IP Load sharing enhancements

GRE inner header hashing

ECMP symmetric hashing

Added support for IP load sharing enhancements, GRE inner header hashing and ECMP symmetric hashing on Cisco Nexus 9364C-GX and 93600CD-GX Switches.

9.3(3)

Configuring ECMP Load Balancing
Combined Access Port Feature set Added support for Selective Q-in-Q including catch-all, vPC, PVLAN, Storm Control 9.3(3)

Guidelines and Limitations for Selective Q-in-Q with Multiple Provider VLANs

Configuring Combined Access Port Feature set

Multiple VRF support on tunnel decap

Added support for multiple IP-in-IP/GRE tunnel interfaces on a same Cisco Nexus device that can be sourced from or destined to the same IP address across different VRFs.

Added support for Cisco Nexus 93180YC-FX and 9300-GX platforms.

9.3(3)

Guidelines and Limitations

Bidirectional Forwarding Detection

Added support for Cisco Nexus 9364C-GX, 9316D-GX, and 93600CD-GX platforms.

9.3(3)

Guidelines and Limitations

Port-channel symmetric hashing

Added support for Cisco Nexus 9300-GX platform.

9.3(3)

Guidelines and Limitations

Port-channel hash based on GRE inner IP header and GTP TEID

Added support for Cisco Nexus 9300-GX platform.

9.3(3)

GTP Tunnel Load Balancing

Guidelines and Limitations

ECMP symmetric hashing Introduced this feature. 9.3(1) Guidelines and Limitations
Port-channel symmetric hashing Added support for Cisco Nexus 9300-EX and 9300-FX/FX2 switches and -EX and -FX line cards. 9.3(1) Guidelines and Limitations
Port-channel hash based on GRE inner IP header Added support for this feature. 9.3(1)

Guidelines and Limitations

Load Balancing Using Port Channels

ECMP hash based on the GRE inner IP header Added support for this feature. 9.3(1)

Guidelines and Limitations

Load Balancing Using Port Channels

LACP fast timer support during system switchover

Added support for Cisco Nexus 9500 platform switches with -EX and -FX line cards. 9.3(1)

LACP Fast Timers

System jumbo MTU size

Added support for configuring an MTU size of up to 9216 bytes on management interfaces.

9.3(1)

Set the system jumbo MTU size

BFD multihop for BGP IPv6

Introduced this feature.

9.3(1)