Key Concepts; Trunking Guidelines And Restrictions - Cisco MDS 9000 Series Configuration Manual

Chapter 5 Configuring Trunking
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
Link Number
1a and 1b
2
3
4
5
1. These features are not supported currently.

Key Concepts

The trunking feature includes the following key concepts:
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Trunking Guidelines and Restrictions

The trunking feature includes the following guidelines and restrictions:
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OL-19445-02, Cisco MDS NX-OS Release 4.2(x)
Link Description
F port trunk with N port.
F port trunk with NP port.
F PortChannnel with NP port.
Trunked F PortChannel with NP port.
Trunking NP port with third-party core switch F port.
TE port—If trunk mode is enabled in an E port and that port becomes operational as a trunking E
port, it is referred to as a TE port.
TF port—If trunk mode is enabled in an F port (see the link 2 in
operational as a trunking F port, it is referred to as a TF port.
TN port—If trunk mode is enabled (not currently supported) in an N port (see the link 1b in
Figure 5-2) and that port becomes operational as a trunking N port, it is referred to as a TN port.
TNP port—If trunk mode is enabled in an NP port (see the link 2 in
becomes operational as a trunking NP port, it is referred to as a TNP port.
TF PortChannel—If trunk mode is enabled in an F PortChannel (see the link 4 in
that PortChannel becomes operational as a trunking F PortChannel, it is referred to as TF
PortChannel. Cisco Port Trunking Protocol (PTP) is used to carry tagged frames.
TF-TN port link—A single link can be established to connect an F port to an HBA to carry tagged
frames (see the link 1a and 1b in
server can reach multiple VSANs through a TF port without inter-VSAN routing (IVR).
TF-TNP port link—A single link can be established to connect an TF port to an TNP port using the
PTP protocol to carry tagged frames (see the link 2 in
supports trunking PortChannels.
The TF-TNP port link between a third-party NPV core and a Cisco NPV switch is
Note
established using the EVFP protocol.
A Fibre Channel VSAN is called Virtual Fabric and uses a VF_ID in place of the VSAN ID. By
default, the VF_ID is 1 for all ports. When an N port supports trunking, a PWWN is defined for each
VSAN and called as logical PWWN. In the case of MDS core switches, the PWWNs for which the
N port requests additional FC_IDs are called virtual PWWNs.
F ports support trunking in Fx mode.
1
Figure 5-2) using Exchange Virtual Fabrics Protocol (EVFP). A
Figure
Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
Trunking Guidelines and Restrictions
1
Figure 5-2) and that port becomes
Figure 5-2) and that port
Figure
5-2). PTP is used because PTP also
5-2) and
5-3