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Chapter 14
Configuring PortChannels
The Information pane in Fabric Manager displays attributes for multiple switches. The dialog box from
Device Manager displays attributes for a single switch.
To enable or disable beacon mode, check the BeaconMode check box. When beacon mode is enabled,
an interface LED flashes to identify the interface.
Viewing Port Capability Attributes
To monitor port capability attributes, such as buffer-to-buffer credit, hold time, and class of service from
the Fabric Manager, choose Physical Interface from the menu tree and click the Capability tab.
To monitor these attributes from the Device Manager, choose the type of port from the Interface menu
and click the Capability tab.
The Information pane in Fabric Manager displays attributes for multiple switches. The dialog box from
Device Manager displays attributes for a single switch.
About PortChanneling and Trunking
PortChanneling enables several links to be combined into one aggregated link.
Trunking enables an ISL to carry (trunk) multiple VSANs. Trunking can only be configured on 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 14-2
Switch 1
PortChanneling and trunking are used separately across an ISL:
•
•
Both PortChanneling and trunking can be used between TE ports over EISLs.
Note
When you create a trunked Port Channel in a fabric with FICON VSANs from Fabric Manager, you
should immediately go to Device Manager and add the FICON Port Number per that Port Channel. Then,
perform a block/unblock, shut/noshut, or Admin Down/Enable to that Port Channel to enable traffic on
it.
OL-7753-01
PortChanneling and Trunking
Any other
switch
ISL
E port
E port
PortChanneling—Interfaces can be channeled between E ports over multiple ISLs or between TE
ports over multiple EISLs.
Trunking—Trunking, which permits carrying VSAN IDs between switches, can be done only
between TE ports over EISLs.
Switch 1
EISL
TE port
TE port
Trunking
Cisco MDS 9000 Fabric Manager Switch Configuration Guide
About PortChanneling and Trunking
Figure
14-2.)
Switch 2
14-3
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