Software Feature Configuration
Cisco UCS 6400 Series Fabric Interconnects do not support a few software features that were supported on UCS 6200 Series Fabric Interconnects in Cisco UCS Manager 3.2 and earlier releases. The following sections detail each of these features and how they would be reported on the Migration Warnings page.
Ensure that the following features are configured correctly before migration:
Chassis Discovery Policy
UCS 6200 Series Fabric Interconnects support blade server chassis discovery in Port Channel and non-Port Channel modes. Cisco UCS 6400 Series Fabric Interconnects support only Port Channel mode.
During migration, if a UCS 6200 Series Fabric Interconnect has the chassis discovery policy configured as non-Port Channel mode, the Migration Warnings page will report the incompatibility.
Important |
You must switch the chassis discovery policy to Port Channel mode before initiating migration and re-acknowledge the chassis after changing the chassis discovery policy. |
Chassis Connectivity Policy
UCS 6200 Series Fabric Interconnects support chassis connectivity in Port Channel and non-Port Channel modes. Cisco UCS 6400 Series Fabric Interconnects support only Port Channel mode.
During migration, if a UCS 6200 Series Fabric Interconnect has the chassis connectivity policy configured as non-Port Channel mode, the Migration Warnings page will report the incompatibility.
Important |
You must switch the chassis connectivity policy to Port Channel mode before initiating migration and re-acknowledge the chassis after changing the chassis connectivity policy. |
Port Configuration Mismatch
On Cisco UCS 6400 Series Fabric Interconnects, the Unified Port capability is restricted to first 16 ports. Only ports 1/1-1/16 can be configured as FC. The FC ports must be contiguous, followed by contiguous Ethernet ports.
On UCS 6200 Series Fabric Interconnects, all ports have the Unified Port capability. All ports can be configured as Ethernet or FC. The Ethernet ports must be contiguous, followed by contiguous FC ports. FC ports appear towards the end of the module.
During cluster addition, the ports that are mismatched will be un-configured.
Multicast Hardware Hash
The Cisco UCS 6400 series Fabric Interconnect supports multicast hardware hashing by default and no configuration is required. However, Cisco UCS 6400 series Fabric Interconnect does not support the provisioning option while enabling multicast hardware hashing. Cisco UCS 6200 series Fabric Interconnects supports the provisioning option while enabling multicast hardware hashing.
VLAN Port Count Optimization
On Cisco UCS 6400 Series Fabric Interconnects, VLAN port count optimization is performed through port VLAN (VP) grouping when the PV count exceeds 16000.
The following table illustrates the PV Count with VLAN port count optimization enabled and disabled on Cisco UCS 6200 Cisco UCS 6400 Series Fabric Interconnects.
If the PV count exceeds 16K, the Migration Warnings page will report the PV count with the warning that VP Grouping will be enabled if you choose to proceed with installation.
When the Cisco UCS 6454 Fabric Interconnect is in Ethernet switching mode:
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The Fabric Interconnect does not support VLAN Port Count Optimization Enabled
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The Fabric Interconnect supports 16000 PVs, similar to EHM mode, when set to VLAN Port Count Optimization Disabled
Multicast Optimized for QoS
Cisco UCS 6400 Series Fabric Interconnects do not support Multicast Optimized. If Multicast Optimized is enabled, this configuration will appear on the Migration Warning page.
Continuing with the installation despite the warning will cause Cisco UCS Manager to reset the Multicast Optimized field.
NetFlow Configuration
UCS 6200 Series Fabric Interconnects support NetFlow configuration. However, on Cisco UCS 6400 Series Fabric Interconnects, NetFlow is not supported.
During migration, if a UCS 6200 Series Fabric Interconnect has NetFlow enabled, the Migration Warnings page will report the NetFlow configuration. Proceeding with the migration will remove the NetFlow configuration.
VM-FEX Integration
Cisco UCS 6400 Series Fabric Interconnects do not support VM-FEX integration.
During migration, the Migration Warnings page will report all configurations related to port profiles and distributed virtual switches (DVSes). Proceeding with the migration with this configuration will remove these port profiles and DVSes from the Cisco UCS Manager configuration.
Dynamic vNIC Connection Policies
During migration, if a UCS 6200 Series Fabric Interconnect has dynamic vNIC connection policies configured, the Migration Warnings page will report that such connection policies exist. If you proceed with the migration, these policies and dynamic vNICS are automatically deleted.
Reserved VLANs
Cisco UCS 6400 Series Fabric Interconnects reserve more VLANs for internal use than UCS 6200 Series Fabric Interconnects.
During migration, the Migration Warnings page will contain the list of VLANs that could potentially conflict with the default reserved VLAN range. If you proceed with migration, the Reserved VLAN range will be configured but VLANs found in the conflicting range will not be configured.