Cisco Nexus 5500 Series NX-OS - Configuring Trunk Mode

Table 12: Trunk Mode Status Between Switches
Resulting State and Port ModeYour Trunk
Mode
Configuration
Port ModeTrunking StateSwitch 2Switch 1
TE portTrunking (EISL)Auto or onOn
E portNo trunking (ISL)Auto, on, or offOff
E portNo trunking (ISL)AutoAuto
The preferred configuration on the Cisco SAN switches is that one side of the trunk is set to auto and the other
is set to on.
When connected to a third-party switch, the trunk mode configuration has no effect. The Inter-Switch
Link (ISL) is always in a trunking disabled state.
Note
Configuring Trunk Mode
You can configure trunk mode.
Procedure
PurposeCommand or Action
Enters global configuration mode.configure terminal
Example:
switch# configure terminal
switch(config)#
Step 1
Selects an interface that will be connected to the
core NPV switch.
switch(config)# interface fc slot/port
Step 2
If this is a QSFP+ GEM, the slot/port
syntax is slot/QSFP-module/port.
Note
Configures the specified Fibre Channel or virtual
Fibre Channel interface.
interface vfc vfc-id
Example:
switch(config)# interface vfc 15
Step 3
Enables (default) the trunk mode for the specified
interface.
switchport trunk mode on
Example:
switch(config-if)# switchport trunk
mode on
Step 4
Cisco Nexus 5500 Series NX-OS SAN Switching Configuration Guide, Release 7.x
86 OL-30895-01
Configuring VSAN Trunking
Configuring VSAN Trunking