Cisco AP775A - Nexus Converged Network Switch 5010 User Manual

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23-3
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 23 Configuring PortChannels
About PortChannels
About F and TF PortChannels
An F PortChannel is also a logical interface that combines a set of F ports connected to the same Fibre
Channel node and operates as one link between the F ports and the NP ports. The F port channels support
bandwidth utilization and availability like the E port channels. F PortChannels are mainly used to
connect MDS core and NPV switches to provide optimal bandwidth utilization and transparent failover
between the uplinks of a VSAN.
An F PortChannel trunk combines the functionality and advantages of a TF port and an F PortChannel.
This logical link uses the Cisco PTP and PCP protocols over Cisco EPP (ELS).
Note If a Cisco MDS 9124 or 9134 switch is used as a core switch, only a nontrunking F PortChannel is
supported. Trunking is not supported on this platform when NPIV enabled.
About PortChanneling and Trunking
Trunking is a commonly used storage industry term. However, the Cisco NX-OS software and switches
in the Cisco MDS 9000 Family implement trunking and PortChanneling as follows:
• PortChanneling enables several physical links to be combined into one aggregated logical link.
• Trunking enables a link transmitting frames in the EISL format to carry (trunk) multiple VSAN
traffic. For example, when trunking is operational on an E port, that E port becomes a TE port. A
TE port is specific to switches in the Cisco MDS 9000 Family. An industry standard E port can link
to other vendor switches and is referred to as a nontrunking interface (see Figure 23-2 and
Figure 23-3).
See Chapter 24, “Configuring Trunking,” for information on trunked interfaces.
Figure 23-2 Trunking Only
PortChanneling and trunking are used separately across an ISL:
Figure 23-3 PortChanneling and Trunking
•
PortChanneling—Interfaces can be channeled between the following sets of ports:
– E ports and TE ports
Switch 1
Any other
switch
ISL
E port E port
Switch 1 Switch 2
EISL
TE port TE port
Trunking
79938
EISL 3
EISL 2
EISL 1
Port channel
and trunking
Switch 1 Switch 2
ISL 3
ISL 2
ISL 1
Switch 1 Switch 2
79939
Port channel

Cisco AP775A - Nexus Converged Network Switch 5010 Specifications

General

Brand	Cisco
Model	AP775A - Nexus Converged Network Switch 5010
Category	Switch
Language	English