—
A maximum of 192 servers per switch are supported if spread across the three forwarding
engines (e0-e2) on the switch.
•
The Cisco MDS 9396S 16G Multilayer Fabric Switch and Cisco MDS 9706 Multilayer Director
switches use dynamic port mapping for device connectivity.
•
The Cisco MDS 9396S 16G Multilayer Fabric Switch and MDS 9706 Multilayer Directors do not
have the TCAM exhaustion issue.
•
The Cisco MDS 9396S 16G Multilayer Fabric Switch is built on the same ASICs as the Cisco
MDS 9700 Series Switch.
—
The Cisco MDS 9396S 16G Multilayer Fabric Switch has 12 forwarding engines.
—
Each forwarding engine has a total of 49,136 TCAM entries.
—
A total of 589,632 TCAM entries are available per switch.
•
To distinguish servers on the compute side, create multiple pools or blocks of 64 WWNs instead
of one large pool/block of 128 identifiers. Essentially, each WWPN would have a distinguishing
value relative to its corresponding N-Port-channel.
•
The vHBA templates should ensure that servers are pinned to the appropriate N-Port-channels.
Refer to Cisco bug
CSCuz11494
when bringing up an Fport-channel-trunk between a Cisco MDS and a
UCS switch.
Related information
Zoning guidelines
Zoning guidelines apply when using Cisco MDS switches.
The following zoning guidelines apply:
•
Use smart zoning on the Cisco MDS switches (unless restricted by the HBA device vendor).
•
Use enhanced zoning.
•
Use device alias and FC alias
There is a fabric wide, limit of 8000 device aliases, and 2000 FC aliases.
•
Zone member types = FC alias
•
FC alias member types = device alias. Identify the device alias member as the
target
or
init
.
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Managing Cisco MDS switches
