H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – Port Correlation Configuration
H3C S7500E Series Ethernet Switches Chapter 1 Port Correlation Configuration
1-4
To do... Use the command... Remarks
Enter system view
system-view
—
Enter Ethernet port view
interface interface-type
interface-number
—
Enable loopback test
loopback { external |
internal }
Optional
Disabled by default.
 Note:
z As for the internal loopback test and external loopback test, if a port is down, only
the former is available on it; if the port is shut down, both are unavailable.
z The speed, duplex, mdi, and shutdown commands are not applicable during a
loopback test.
z With the loopback test enabled, the Ethernet port operates in the full duplex mode.
With the loopback test enabled, the original configurations will be restored.
1.1.5 Configuring a Port Group
To make the configuration task easier for users, certain devices allow users to configure
on a single port as well as on multiple ports in a port group. In port group view, the user
only needs to input the configuration command once on one port and that configuration
will apply to all ports in the port group. This effectively reduces redundant
configurations.
A Port group belongs to one of the following two categories:
z Manual port group: manually created by users. Multiple Ethernet ports can be
added to the same port group;
z Dynamic port group: dynamically created by the system. Currently, it refers in
particular to a port aggregation group. A port aggregation port group is
automatically created together with the creation of a link aggregation group and
cannot be created by users through CLI. Adding or deleting of ports in a port
aggregation port group can only be achieved through operations on the link
aggregation group.
A port group enables you to configure ports in batch. You cannot display or save the
configuration of a port group. However, you can use the display
current-configuration or display this command to view the current configuration of
each member port of a port group.
Follow these steps to configure a port group: