Cisco Nexus 7000 Series Reference Guide

M Commands
multicast best-effort
281
Cisco Nexus 7000 Series NX-OS System Management Command Reference
OL-25806-03
multicast best-effort
To configure the multicast best effort mode for the specified Encapsulated Remote Switched Port
Analyzer (ERSPAN) or the Ethernet Switched Port Analyzer (SPAN) session, use the multicast
best-effort command. To remove the multicast best effort mode for an ERSPAN or SPAN session, use
the no form of this command.
multicast best-effort
no multicast best-effort
Syntax Description This command has no arguments or keywords.
Defaults Disabled
Command Modes Monitor configuration (config-monitor)
Supported User Roles network-admin
vdc-admin
Command History
Usage Guidelines By default, SPAN replication occurs on both the ingress and egress line card. When you enable the
multicast best effort mode, SPAN replication occurs only on the ingress line card for multicast traffic or
on the egress line card for packets egressing out of Layer 3 interfaces (that is, on the egress line card,
packets egressing out of Layer 2 interfaces are not replicated for SPAN).
Make sure that you are in the correct virtual device context (VDC). To change the VDC, use the switchto
vdc command.
Note Multicast best effort mode applies only to M1 Series modules
This command does not require a license.
Examples This example shows how to configure the multicast best effort mode for the specifies ERSPAN or SPAN
session:
switch# configure terminal
switch(config)# monitor session 3
switch(config-monitor)# multicast best-effort
switch(config-monitor)#
Release Modification
5.2(1) This command was introduced.

Cisco Nexus 7000 Series Specifications

General

Brand	Cisco
Model	Nexus 7000 Series
Category	Switch
Language	English