Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 6.x
New and Changed Information
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Table of Contents

New and Changed Information

New and Changed Information

This chapter provides release-specific information for each new and changed feature in the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide. The latest version of this document is available at the following Cisco website:
http://www.cisco.com/en/US/docs/switches/datacenter/sw/6_x/nx-os/unicast/configuration/guide/l3_nxos-book.htm

To check for additional information about Cisco NX-OS Release 6.x, see the Cisco NX-OS Release Notes available at the following Cisco website:
http://www.cisco.com/en/US/partner/products/ps9402/prod_release_notes_list.html

Table 1 summarizes the new and changed features for the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide and tells you where they are documented.

 

Table 1 New and Changed Features for Release 6.x

Feature
Description
Changed in Release
Where Documented

Unicast FIB

Removed references to the deprecated show ip fib commands.

6.2(6)

Chapter 16, “Managing the Unicast RIB and FIB”

Static Route over VLAN

Added support for configuring a static route without next hop over a VLAN, also known as switch virtual interface (SVI).

6.2(2a)

Chapter 13, “Configuring Static Routing”

4-byte AS numbers

Added the ability to configure 4-byte AS numbers in asdot notation.

6.2(2)

Chapter 10, “Configuring Basic BGP”

ARP

Configures the maximum number of ARP entries in the neighbor adjacency table

6.2(2)

Chapter 2, “Configuring IPv4”

BGP

Added BFD support for the IPv6 address family.

6.2(2)

Chapter 11, “Configuring Advanced BGP”

BGP

Added the ability to configure BGP to advertise the default route.

6.2(2)

Chapter 11, “Configuring Advanced BGP”

BGP

Added the ability to advertise routes that are suppressed by the aggregate-address command.

6.2(2)

Chapter 11, “Configuring Advanced BGP”

BGP conditional route injection

Introduced this feature.

6.2(2)

Chapter 11, “Configuring Advanced BGP”

Duplicate address detection

Added the ability to set the number of consecutive neighbor solicitation messages that the device sends from the IPv6 interface.

6.2(2)

Chapter 3, “Configuring IPv6”

EIGRP

Added support for route-map filtering.

6.2(2)

Chapter 8, “Configuring EIGRP”

EIGRP

Added support for configuring the administrative distance of routes.

6.2(2)

Chapter 8, “Configuring EIGRP”

EIGRP

Added the ability to configure all EIGRP interfaces as passive by default.

6.2(2)

Chapter 8, “Configuring EIGRP”

FabricPath anycast HSRP

This feature was introduced.

6.2(2)

Chapter 20, “Configuring HSRP”

Glean optimization

Introduced this feature to improve the performance of glean packets.

6.2(2)

Chapter 2, “Configuring IPv4” and Chapter 3, “Configuring IPv6”

HSRP

Added support for multiple group optimization (MGO).

6.2(2)

Chapter 20, “Configuring HSRP”

IPv6

Added the ability to configure the maximum number of neighbor discovery entries in the neighbor adjacency table.

6.2(2)

Chapter 3, “Configuring IPv6”

IS-IS

Added support for configuring the administrative distance of routes.

6.2(2)

Chapter 9, “Configuring IS-IS”

IS-IS

Added the ability to configure all IS-IS interfaces as passive by default and then activate only those interfaces where adjacencies are desired.

6.2(2)

Chapter 9, “Configuring IS-IS”

Local policy routing

Introduced this feature.

6.2(2)

Chapter 18, “Configuring Policy-Based Routing”

OSPFv2 and OSPFv3

Added the filter keyword to the table-map command to specify that only routes permitted by the route map are downloaded to the RIB.

6.2(2)

Chapter 6, “Configuring OSPFv2” and Chapter 7, “Configuring OSPFv3”

OSPFv2 and OSPFv3

Added the optional name-lookup parameter for OSPFv2 and OSPFv3 instances.

6.2(2)

Chapter 6, “Configuring OSPFv2” and Chapter 7, “Configuring OSPFv3”

OSPFv3

Added the ability to advertise locally generated router LSAs with the maximum metric value possible.

6.2(2)

Chapter 7, “Configuring OSPFv3”

OSPFv3 MIBs

Added OSPFv3 SNMP/trap support.

6.2(2)

Chapter 6, “Configuring OSPFv2” and Chapter 7, “Configuring OSPFv3”

Policy-based administrative distance

Introduced this feature.

6.2(2)

Chapter 11, “Configuring Advanced BGP”

Reliable static routing backup using object tracking

Introduced this feature.

6.2(2)

Chapter 13, “Configuring Static Routing”

Route policy manager

Added support for null interfaces to the match interface command.

6.2(2)

Chapter 17, “Configuring Route Policy Manager”

Route summarization

Added the ability to prevent discard routes from being created.

6.2(2)

Chapter 6, “Configuring OSPFv2” and Chapter 7, “Configuring OSPFv3”

TCAM utilization

Added the ability to monitor TCAM utilization on M1 Series modules.

6.2(2)

Chapter 16, “Managing the Unicast RIB and FIB”

Unicast FIB

Added the ability to check for inconsistent, missing, or failed routes in the unicast FIB.

6.2(2)

Chapter 16, “Managing the Unicast RIB and FIB”

Unicast RIB

Added the optional keyword longer-prefixes [ detail ] to the show routing command to display specific routes for a particular prefix.

6.2(2)

Chapter 16, “Managing the Unicast RIB and FIB”

VRRPv3 and VRRS

Introduced these features.

6.2(2)

Chapter 21, “Configuring VRRP”

Policy-based routing

Added support for deny access control entries (ACEs) in a sequence for the following sequence-based features: VACLs, policy-based routing, and QoS.

6.1(3)

Chapter 18, “Configuring Policy-Based Routing”

BGP

Added support for additional BGP paths.

6.1(1)

Chapter 10, “Configuring Basic BGP” and Chapter 11, “Configuring Advanced BGP”

BGP

Added the ability to set the default weight for routes from a neighbor using the weight command in the neighbor address family configuration mode.

6.1(1)

Chapter 10, “Configuring Basic BGP”

IS-IS

Added support for IPv6.

6.1(1)

Chapter 9, “Configuring IS-IS”

IS-IS

Added the no adjacency-check command to disable strict adjacency mode.

6.1(1)

Chapter 9, “Configuring IS-IS”

Layer 3 routing using a mixed chassis

Added support for M2 Series modules.

6.1(1)

Chapter 13, “Configuring Static Routing”

OSPFv2

Added support for more than four process instances for OSPFv2 per VDC.

6.1(1)

Chapter 6, “Configuring OSPFv2”

OSPFv2 and OSPFv3

Added support for configuring the administrative distance of routes for OSPFv2 or OSPFv3.

6.1(1)

Chapter 6, “Configuring OSPFv2” and Chapter 7, “Configuring OSPFv3”

Policy-based routing and WCCPv2

Added support for policy-based routing and WCCPv2 on the same interface if bank chaining is disabled.

6.1(1)

Chapter 18, “Configuring Policy-Based Routing” and Chapter 5, “Configuring WCCPv2”

RIP

Added the ability to configure Cisco NX-OS RIP to be behaviorally compatible with Cisco IOS RIP in the way that routes are advertised and processed.

6.1(1)

Chapter 12, “Configuring RIP”

Route policy manager

Added support for the set distance command and for the inter-area and intra-area options in the match route-type command.

6.1(1)

Chapter 17, “Configuring Route Policy Manager”

BGP

Added the as-path multipath-relax option to the bestpath command.

6.0(1)

Chapter 11, “Configuring Advanced BGP”

BGP

Added support for setting next-hops on reflected routes using an outbound route-map.

6.0(1)

Chapter 11, “Configuring Advanced BGP”

BGP bestpath

Added the med confed option to the bestpath command to f orce bestpath to do a MED comparison only between paths originated within a confederation.

6.0(1)

Chapter 11, “Configuring Advanced BGP”

IPv4 and IPv6

Updated for F2 Series modules.

6.0(1)

Chapter 2, “Configuring IPv4” and Chapter 3, “Configuring IPv6”

Static routing

Updated for F2 Series modules.

6.0(1)

Chapter 13, “Configuring Static Routing”

BFD on VRRP

Added BFD support to VRRP.

5.2(1)

Chapter 21, “Configuring VRRP”

BGP

Added support for the BGP PIC core feature.

5.2(1)

Chapter 10, “Configuring Basic BGP”

BGP

Added the cost-community ignore option to the bestpath command.

5.2(1)

Chapter 11, “Configuring Advanced BGP”

EIGRP

Added support for EIGRP wide metrics.

5.2(1)

Chapter 8, “Configuring EIGRP”

Maximum routes

Added support to configure the maximum number of routes allowed in the routing table.

5.2(1)

Chapter 16, “Managing the Unicast RIB and FIB”

Route-map enhancements

Added support for set extcommunity cost and set extcommunity rt commands.

5.2(1)

Chapter 17, “Configuring Route Policy Manager”

Route-policy enhancements

Added support for set interface commands.

5.2(1)

Chapter 18, “Configuring Policy-Based Routing”

VPN address mode

Added support for VPNv4 and VPNv6 address modes.

5.2(1)

Chapter 10, “Configuring Basic BGP”

OSPFv2

Added options for the max-metric router-lsa command.

5.1(2)

Chapter 6, “Configuring OSPFv2”

IP Glean Throttling

Added support for glean throttling rate limiters to protect the supervisor from the glean traffic.

5.1(1)

Chapter 2, “Configuring IPv4”

WCCP

Added support for WCCPv2 Error Handling for SPM Operations.

5.1(1)

Chapter 5, “Configuring WCCPv2”

Static routing

Added the name option to the ip route command.

5.1(1)

Chapter 13, “Configuring Static Routing”

Layer 3 Interoperation with the N7K-F132-15 Module

Added support for the Layer 3 Interoperation with the N7K-F132-15 Module.

5.1(1)

Chapter 13, “Configuring Static Routing”

BFD

Added support for BFD.

5.0(2)

See the Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 6.x , for more information.

Dynamic TCAM allocation

Enabled by default and cannot be disabled.

5.0(2)

Chapter 16, “Managing the Unicast RIB and FIB”

IPv6

Added support for IPv6 Path MTU discovery

5.0(2)

Chapter 3, “Configuring IPv6”

HSRP

Added support for IPv6.

5.0(2)

Chapter 20, “Configuring HSRP”

Object Tracking

Added support for IPv6.

5.0(2)

Chapter 22, “Configuring Object Tracking”

IS-IS

Added support for BFD and stateful restart.

5.0(2)

Chapter 9, “Configuring IS-IS”

TCAM and FIB Size

Added support for larger TCAM and FIB sizes with XL modules.

5.0(2)

Chapter 16, “Managing the Unicast RIB and FIB”

Route Maps

Added support for match mac-list , match metric , and match vlan commands.

5.0(2)

Chapter 17, “Configuring Route Policy Manager”