Cisco UCS
uses LAN pin groups to pin Ethernet traffic from a vNIC on a server to an
uplink Ethernet port or port channel on the fabric interconnect. You can use
this pinning to manage the distribution of traffic from the servers.
To configure pinning for a server, you must include the LAN pin group in
a vNIC policy. The vNIC policy is then included in the
service profile
assigned to that server. All traffic from the vNIC travels through the I/O
module to the specified uplink Ethernet port.
Note
If you do not assign a pin group to a server interface through a vNIC policy, Cisco UCS Manager chooses an uplink Ethernet port or port channel for traffic from that server interface dynamically. This choice is not permanent. A different uplink Ethernet port or port channel may be used for traffic from that server interface after an interface flap or a server reboot.
Creating a LAN Pin Group
In a system with two fabric interconnects, you
can associate the pin group with only one fabric interconnect or with both
fabric interconnects.
Before You Begin
Configure the ports and port channels with
which you want to configure the pin group. You can only include ports and port
channels configured as uplink ports in a LAN pin group.
Procedure
Step 1
In the
Navigation pane, click the
LAN tab.
Step 2
On the
LAN tab, expand
LAN > LAN Cloud.
Step 3
Right-click
LAN Pin Groups and select
Create LAN Pin Group.
Step 4
In the
Create LAN Pin Group dialog box, enter a unique
name and description for the pin group.
Step 5
To pin traffic for fabric interconnect A, do the following in the
Targets area:
Check the
Fabric Interconnect A check box.
Click the drop-down arrow on the
Interface field and navigate through the
tree-style browser to select the port or port channel you want to associate
with the pin group.
Step 6
To pin traffic for fabric interconnect B, do the following in the
Targets area:
Check the
Fabric Interconnect B check box.
Click the drop-down arrow on the
Interface field and navigate through the
tree-style browser to select the port or port channel you want to associate
with the pin group.
Step 7
Click
OK.
What to Do Next
Include the pin group in a vNIC template.
Deleting a LAN Pin Group
Procedure
Step 1
In the
Navigation pane, click the
LAN tab.
Step 2
In the
LAN tab, expand
LAN > LAN Cloud > LAN Pin Groups.
Step 3
Right-click the LAN pin group you want to delete and select
Delete.
Step 4
If the Cisco UCS Manager GUI
displays a confirmation dialog box, click
Yes.