Before You Begin
•
Log in to the CLI in EXEC mode.
•
If the ports are connected to a single upstream switch, see Connecting to a Single Upstream Switch.
•
Configure an uplink port profile to be used by the physical NICs in the VEM in virtual port channel-host
mode (vPC-HM) when the ports connect to multiple upstream switches.
•
If you are connecting to multiple upstream switches that do not support port channels, know that MAC
pinning is the preferred configuration. You can configure MAC pinning using this procedure.
•
The channel group mode must be set to on (active and passive modes use LACP).
•
You must know whether CDP is configured in the upstream switches.
◦
If configured, CDP packets from the upstream switch are used to automatically create a subgroup
for each upstream switch to manage its traffic separately.
◦
If not configured, after completing this procedure, you must manually configure subgroups to
manage the traffic flow on the separate switches. See Manually Configuring Interface Subgroups.
Connectivity may be disrupted for up to 60 seconds if the CDP timer is set to 60 seconds (the default).Caution
The VMs behind the Cisco Nexus 1000V receive duplicate packets from the network for unknown unicasts,
multicast floods, and broadcasts if vPC-HM is not configured when port channels connect to two different
upstream switches.
Caution
Procedure
PurposeCommand or Action
Enters global configuration mode.switch# configure terminal
Step 1
Enters port profile configuration mode for the named port profile.switch(config)# port-profile
[type {ethernet |
vethernet}] name
Step 2
• name—Specifies the port profile name, which can be up to 80
characters and must be unique for each port profile on the Cisco
Nexus 1000V.
• type—Specifies the port profile as an Ethernet or vEthernet type.
Once configured, this setting cannot be changed. The default is
the vEthernet type.
For configuring port channels, specify the port profile as an
Ethernet type.
Defining a port profile as an Ethernet type allows the port profile
to be used for physical (Ethernet) ports. In the vCenter Server,
the corresponding port group can be selected and assigned to
physical ports (PNICs).
Cisco Nexus 1000V for VMware vSphere Interface Configuration Guide, Release 5.x
62
Configuring Port Channels
Creating a Port Profile for a Port Channel
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