Cisco Nexus 7000 Series NX-OS Multicast Routing Configuration Guide
New and Changed Information
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New and Changed Information

New and Changed Information

This chapter describes new and changed features.

New and Changed

The following is release-specific information for each new and changed feature in the Cisco Nexus 7000 Series NX-OS Multicast Routing Configuration Guide. The latest version of this document is available at the following Cisco website:

http:/​/​www.cisco.com/​en/​US/​products/​ps9402/​products_​installation_​and_​configuration_​guides_​list.html

To check for additional information about Cisco NX-OS releases, see the Cisco NX-OS Release Notes available at the following Cisco website:
http:/​/​www.cisco.com/​en/​US/​products/​ps9402/​prod_​release_​notes_​list.htmll

The table summarizes the new and changed features for the Cisco Nexus 7000 Series NX-OS Multicast Routing Configuration Guide, and tells you where they are documented.

Table 1 New and Changed Features

Feature

Description

Changed in Release

Where Documented

ip igmp snooping max-gq-miss command

Configures the maximum number of general query misses permitted for IGMP snooping.

6.2(2)

Configuring IGMP Snooping

MRIB/M6RIB Dynamic Shared Memory Support

The Cisco NX-OS IPv4 Multicast Routing Information Base and IPv6 Multicast Routing Information Base (MRIB/M6RIB) dynamic shared memory support feature supports dynamic shared memory in a virtual device context (VDC). Instead of a static allocation of the entire configured memory for the multicast routes, the shared memory for MRIB/M6RIB dynamically adds up or is removed based on the increase or decrease, respectively, in the number of routes. The MRIB/M6RIB dynamic shared memory feature also supports device switchover (from active to standy state and vice-versa) when the shared memory increases or decreases.

6.2(2)

MRIB and M6RIB

Multicast performance enhancement

Enables enhanced multicast performance on Cisco Nexus 7000 Series Ethernet modules with an XL Option allocated to virtual device contexts (VDCs).

6.2(2)

Enabling Multicast Performance Enhancement on VDCs

ip igmp groups and ip igmp route commands

Commands updated with summary parameter.

  • ip igmp groups
  • ip igmp route

6.1(1)

Configuring IGMP

Configuring F2 modules

Cisco NX-OS does not support PIM Bidir mode on F2 modules.

6.0(1)

Configuring PIM and PIM6

Configuring F2 modules

F2 modules do not support any form of IPv4 or IPv6 tunnels.

6.0(1)

Configuring PIM and PIM6

Configuring lookup mode to MAC and assigning a static MAC address

You can configure IGMP snooping to use the forwarding lookup mode as MAC-based, as well as assign a static MAC address.

5.2(1)

Configuring IGMP Snooping

Configuring PIMv4 on GRE tunnel interfaces

You can configure multicast on GRE tunnel interfaces including outgoing interfaces (OIFs).

5.2(1)

Configuring PIM and PIM6

Configuring multicast interoperation with F Series modules

You can configure multicast interoperation with F series and M series modules.

5.1(1)

Configuring Multicast Interoperation with N7K-F132-15 Modules

Multicast routing initial holddown period

You can specify the initial holddown period for both IPv4 and IPv6 networks.

4.2(1)

Configuring PIM and PIM6

Use a route-map policy for commands

You can specify group prefixes in a route-map policy rather than specifying them on the command line for these commands:

  • ip igmp join-group
  • ip igmp static-oif
  • ip pim rp-address
  • ip pim ssm range
  • ipv6 [icmp] mld join-group
  • ipv6 [icmp] mld static-oif
  • ipv6 pim rp-address
  • ipv6 pim ssm range

4.2(1)

Configuring IGMP

Configuring MLD

Configuring Static RPs

Configuring SSM

Virtual Port Channel (vPC)

Cisco NX-OS software for the Nexus 7000 Series devices does not support PIM SSM or Bidr on vPCs. Cisco NX-OS software fully supports PIM ASM on vPCs.

4.1(4)

Virtual Port Channels and Multicast

Virtual Port Channel (vPC)

A virtual port channel (vPC) allows a single device to use a port channel across two upstream switches.

4.1(3)

Virtual Port Channels and Multicast

Verifying the IGMP Configuration

Configuring ASM and Bidir

Guidelines and Limitations for IGMP Snooping

Displaying IGMP Snooping Statistics

Immediate leave

Option that minimizes the leave latency of IGMPv2 or MLDv1 group memberships on a given IGMP or MLD interface because the device does not send group-specific queries.

4.1(3)

Configuring IGMP Interface Parameters

Configuring MLD Interface Parameters