H3C Technologies H3C S5830V2 Series Switches - Manual (Page 117)

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Configuring uplink interfaces
Uplink interfaces must be FC or VFC interfaces in NP mode.
To configure an uplink interface:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter FC interface
view or VFC interface
view.
interface { fc | vfc }
interface-number
This interface is connected to the core switch.
3. Configure the mode
of the interface to as
NP.
fc mode np
The default setting is F mode for both FC and VFC
interfaces of an NPV switch.
Configuring downlink interfaces
Downlink interfaces must be FC or VFC interfaces in F mode.
To configure a downlink interface:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter FC interface
view or VFC interface
view.
interface { fc | vfc }
interface-number
This interface is connected to a node.
3. Configure the mode
of the interface to as
F.
fc mode f
The default setting is F mode for both FC and VFC
interfaces of an NPV switch.
Configuring downlink-to-uplink interface mappings
CAUTION:
If an uplink interface mapped by a downlink interface is not in the configured mappings, the switch
initializes the downlink interface, resulting in traffic interruption.
NPV switches automatically map downlink interfaces to uplink interfaces. When automatic mapping
cannot meet requirements, for example, when a downlink interface must be connected to a fabric
through a specific uplink interface, you can manually map the downlink interface to a specific uplink
interface or a set of uplink interfaces.
After you configure the mapping, the downlink interface can be mapped to only the configured uplink
interfaces. If none of the configured uplink interfaces is operational, the downlink interface cannot be
operational. A configured mapping selects the uplink interface with the minimum load from configured
uplink interfaces and then maps the downlink interface to it.
To configure a downlink-to-uplink interface mapping: