Tnp Port; Sd Port; Auto Mode; Interface States - Cisco Nexus 5000 Series Configuration Manual

Information About Fibre Channel Interfaces
In TF port mode, all frames are transmitted in an 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 VSAN trunking in Cisco Nexus 5000 Series switches. TF ports
support class 3 and class F service.

TNP Port

In trunking NP port (TNP port) mode, an interface functions as a trunking expansion port. A TNP Port may
be connected to a trunked F port (TF port) to create a link to a core NPIV switch from an NPV switch.

SD Port

In SPAN destination port (SD port) mode, an interface functions as a switched port analyzer (SPAN). The
SPAN feature monitors network traffic that passes though a Fibre Channel interface. This monitoring 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, instead they transmit a copy of the source traffic. The SPAN feature is nonintrusive
and does not affect switching of network traffic for any SPAN source ports.

Auto Mode

Interfaces configured in auto mode can operate in one of the following modes: E, F, NP, TE, TF, and TNP
port. The port mode is determined during interface initialization. For example, if the interface is connected
to a node (host or disk), it operates in F port mode. If the interface is attached to a third-party switch, it operates
in E port mode. If the interface is attached to another switch in the or Cisco MDS 9000 Family, it may become
operational in TE port mode.
SD ports are not determined during initialization and are administratively configured.

Interface States

The interface state depends on the administrative configuration of the interface and the dynamic state of the
physical link.

Administrative States

The administrative state refers to the administrative configuration of the interface. The table below describes
the administrative states.
Table 3: Administrative States
Administrative State
Up
Down
Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide
10
Configuring Fibre Channel Interfaces
Description
Interface is enabled.
Interface is disabled. If you administratively disable
an interface by shutting down that interface, the
physical link layer state change is ignored.
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