Cisco AP775A - Nexus Converged Network Switch 5010 User Manual

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24-6
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 24 Configuring Trunking
Enabling the Trunking Protocols
Enabling the Trunking Protocols
This section explains how to enable or disable the required trunking and channeling protocols
represented in Figure 24-2 and includes the following topics:
• About Trunking Protocols, page 24-6
• Enabling the Cisco Trunking and Channeling Protocols, page 16-8
• Enabling the F Port Trunking and Channeling Protocol, page 24-7
About Trunking Protocols
The trunking protocol is important for trunking operations on the ports. The protocols enable the
following activities:
• Dynamic negotiation of operational trunk mode.
• Selection of a common set of trunk-allowed VSANs.
• Detection of a VSAN mismatch across an ISL.
Table 24-1 specifies the protocols used for trunking and channeling.
By default, the trunking protocol is enabled. If the trunking protocol is disabled on a switch, no port on
that switch can apply new trunk configurations. Existing trunk configurations are not affected. The TE
port continues to function in trunk mode, but only supports traffic in VSANs that it negotiated with
previously (when the trunking protocol was enabled). Also, other switches that are directly connected to
this switch are similarly affected on the connected interfaces. In some cases, you may need to merge
traffic from different port VSANs across a non-trunking ISL. If so, disable the trunking protocol.
Note We recommend that both ends of a trunking link belong to the same port VSAN. On certain switches or
fabric switches where the port VSANs are different, one end returns an error and the other end is not
connected.
Tip To avoid inconsistent configurations, shut all ports before enabling or disabling the trunking protocols.
Table 24-1 Supported Trunking Protocols
Trunk Link Default
TE-TE port link Cisco EPP (PTP)
TF-TN port link
1
1. These features are not currently supported.
FC-LS Rev 1.62 EVFP
TF-TNP port link Cisco EPP (PTP)
E or F PortChannel Cisco EPP (PCP)
TF Port Channel Cisco EPP (PTP and PCP)
Third-party TF-TNP port link
1
FC-LS Rev 1.62 EVFP

Cisco AP775A - Nexus Converged Network Switch 5010 Specifications

General

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