Lacp Marker Responders; Lacp-Enabled And Static Etherchannels Differences; Configuring Etherchannels; Creating An Etherchannel - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

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• A port in active mode can form an EtherChannel successfully with another port that is in active mode.

• A port in active mode can form an EtherChannel with another port in passive mode.

• A port in passive mode cannot form an EtherChannel with another port that is also in passive mode

• A port in on mode is not running LACP.

LACP Marker Responders

Using EtherChannels, data traffic may be dynamically redistributed due to either a link failure or load balancing.

LACP uses the Marker Protocol to ensure that frames are not duplicated or reordered because of this

redistribution. Cisco NX-OS supports only Marker Responders.

The following table provides a brief summary of major differences between EtherChannels with LACP enabled

and static EtherChannels.

Table 12: EtherChannels with LACP Enabled and Static EtherChannels

Configurations

Protocol applied

Channel mode of links

Maximum number of links in

Configuring EtherChannels

You can create an EtherChannel before creating a channel group. Cisco NX-OS automatically creates the

associated channel group.

If you want LACP-based EtherChannels, you need to enable LACP.

because neither port will initiate negotiation.

EtherChannels with LACP Enabled

Enable globally.

Can be either:

Cisco Nexus 5000 Series Switch CLI Software Configuration Guide

LACP Marker Responders

Static EtherChannels

Not applicable.

Can only be On.

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