HP Cisco Nexus 5000 Cisco Nexus 5000 Series Switch CLI Software Configuration - Page 207

Chapter 11 Configuring Port Channels Configuring Port Channels Send feedback to [email protected] • A port in passive mode cannot form a port channel with another port that is also in passive mode because neither port will initiate negotiation. • A port in on mode is not running LACP. LACP Marker Responders Using port channels, 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. LACP-Enabled and Static Port Channels Differences Table 11-3 provides a brief summary of major differences between port channels with LACP enabled and static port channels. Table 11-3 Port Channels with LACP Enabled and Static Port Channels Configurations Port Channels with LACP Enabled Protocol applied Enable globally. Channel mode of links Can be either: • Active • Passive Maximum number of links 8 in channel Static Port Channels Not applicable. Can only be On. 8 Configuring Port Channels You can configure multiple port channels on a device. This section includes the following topics: • Creating a Port Channel, page 11-7 • Adding a Port to a Port Channel, page 11-8 • Configuring Load Balancing Using Port Channels, page 11-9 • Enabling LACP, page 11-10 • Configuring Port-Channel Port Modes, page 11-10 • Configuring the LACP System Priority and System ID, page 11-11 • Configuring the LACP Port Priority, page 11-11 Creating a Port Channel You can create a port channel before creating a channel group. Cisco NX-OS automatically creates the associated channel group. OL-16597-01 Cisco Nexus 5000 Series Switch CLI Software Configuration Guide 11-7