Tf Port; Tnp Port; Sd Port; St Port - Cisco MDS 9000 Series Configuration Manual

Configuring Interfaces
In TE port mode, all the frames are transmitted in EISL frame format, which contains VSAN information.
Interconnected switches use the VSAN ID to multiplex traffic from one or more VSANs across the same
physical link. This feature is referred to as trunking in the Cisco MDS 9000 Series Multilayer Switches. For
more details about trunking, see
Class F services.

TF Port

In trunking F port (TF port) mode, an interface functions as a trunking expansion port. It can be connected to
another trunked N port (TN port) or trunked NP port (TNP port) to create a link between a core switch and
an NPV switch or an host bus adapter (HBA) in order to carry tagged frames. TF ports are specific to Cisco
MDS 9000 Series Multilayer Switches. They expand the functionality of F ports to support VSAN trunking.
In TF port mode, all the frames are transmitted in EISL frame format, which contains VSAN information.
Interconnected switches use the VSAN ID to multiplex traffic from one or more VSANs across the same
physical link. This feature is referred to as trunking in the Cisco MDS 9000 Series Multilayer Switches. For
more details about trunking, see
Class F services.

TNP Port

In trunking NP port (TNP port) mode, an interface functions as a trunking expansion port. It can be connected
to a trunked F port (TF port) to create a link to a core NPIV switch from an NPV switch in order to carry
tagged frames.

SD Port

In SPAN destination port (SD port) mode, an interface functions as a switched port analyzer (SPAN). The
SPAN feature is specific to switches in the Cisco MDS 9000 Series. It monitors network traffic that passes
though a Fibre Channel interface. This is done using a standard Fibre Channel analyzer (or a similar switch
probe) that is attached to an SD port. SD ports do not receive frames; they only transmit a copy of the source
traffic. The SPAN feature is non-intrusive and does not affect switching of network traffic in SPAN source
ports. For more details about SPAN, see the
Guide.

ST Port

In the SPAN tunnel port (ST port) mode, an interface functions as an entry point port in the source switch for
the RSPAN Fibre Channel tunnel. The ST port mode and the remote SPAN (RSPAN) feature are specific to
switches in the Cisco MDS 9000 Series Multilayer Switches. When configured in ST port mode, the interface
cannot be attached to any device, and thus cannot be used for normal Fibre Channel traffic. For more details
about SPAN, see the

Fx Port

Interfaces configured as Fx ports can operate in either F port mode or FL port mode. The Fx port mode is
determined during interface initialization depending on the attached N port or NL port. This administrative
configuration disallows interfaces to operate in any other mode, for example, preventing an interface to connect
to another switch.
Configuring Trunking, on page
Configuring Trunking, on page
Cisco MDS 9000 Series NX-OS System Management Configuration
Cisco MDS 9000 Series NX-OS System Management Configuration
Cisco MDS 9000 Series Interfaces Configuration Guide, Release 8.x
197. TE ports support Class 2, Class 3, and
197. TF ports support Class 2, Class 3, and
Guide.
TF Port
19