San Port Channel Configuration Guidelines; F And Tf Port Channel Guidelines - Cisco Nexus 5000 Series Configuration Manual

Configuring SAN Port Channels

SAN Port Channel Configuration Guidelines

Before configuring a SAN port channel, consider the following guidelines:
• Configure the SAN port channel using Fibre Channel ports from both expansion modules to provide
increased availability (if one of the expansion modules failed).
• Ensure that one SAN port channel is not connected to different sets of switches. SAN port channels
require point-to-point connections between the same set of switches.
• If you misconfigure SAN port channels, you may receive a misconfiguration message. If you receive
this message, the port channel's physical links are disabled because an error has been detected.
• If the following requirements are not met, a SAN port channel error is detected:
Enter the show interface command for that interface to verify that the SAN port channel is functioning as
required.

F and TF Port Channel Guidelines

The guidelines for F and TF port channels are as follows:
• The ports must be in F mode.
• Automatic creation is not supported.
• ON mode is not supported. Only Active-Active mode is supported. By default, the mode is Active on
the NPV switches.
• Devices logged in through the F port channel on an MDS switch are not supported in IVR non-NAT
configuration. The devices are supported only in IVR NAT configuration.
• Port security rules are enforced only on physical PWWNs at the single link level.
• The name server registration of the N ports logging in through an F port channel will use the FWWN
of the port channel interface.
• DPVM configuration is not supported.
• The port channel port VSAN cannot be configured using Dynamic Port VSAN Membership (DPVM).
• Before you configure F port channel, make sure that the feature fport-channel-trunk is enabled on the
switch.
• For an NPV switch which is configured for trunking on any interface, or for a regular switch where the
f port-channel-trunk command is issued to enable the Trunking F Port Channels feature, follow these
configuration guidelines for reserved VSANs and isolated VSAN:
OL-27583-01
◦ Each switch on either side of a SAN port channel must be connected to the same number of
interfaces.
◦ Each interface must be connected to a corresponding interface on the other side.
◦ Links in a SAN port channel cannot be changed after the port channel is configured. If you change
the links after the port channel is configured, be sure to reconnect the links to interfaces within the
port channel and reenable the links.
If all three conditions are not met, the faulty link is disabled.
Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide, Release 5.2(1)N1(1)
Configuring SAN Port Channels
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