Setting The Statistics Polling Interval; Enabling Subinterface Rate Statistics Collection On An Ethernet Interface - H3C SR6600 Configuration Manual

•
Internal loopback testing—Tests the device where the Ethernet interface resides. The
Ethernet interface sends outgoing packets back to the local device. If the device fails to receive
the packets, the device fails.
•
External loopback testing—Tests the inter-device link. The Ethernet interface sends incoming
packets back to the remote device. If the remote device fails to receive the packets, the
inter-device link fails.
Configuration restrictions and guidelines
•
The shutdown and loopback commands are exclusive with each other.
•
After you enable this feature on an Ethernet interface, the Ethernet interface switches to full
duplex mode. After you disable this feature, the Ethernet interface restores to its duplex setting.
Configuration procedure
To enable loopback testing on an Ethernet interface:
Step
1. Enter system view.
2. Enter Ethernet interface
view.
3. Enable loopback testing.

Setting the statistics polling interval

Step
1. Enter system view.
2. Set the statistics polling
interval.
To display the interface statistics collected in the last statistics polling interval, use the display
interface command.
Enabling subinterface rate statistics collection on an Ethernet
interface
IMPORTANT:
This feature is resource intensive. When you use this feature, make sure you fully understand its
impact on system performance.
After you enable subinterface rate statistics collection on an Ethernet interface, the device
periodically refreshes the rate statistics on the subinterfaces of this Ethernet interface. You can use
the display interface command to display the subinterface rate statistics.
To enable subinterface rate statistics collection on an Ethernet interface:
Step
1. Enter system view.
2. Enter Ethernet interface
view.
Command
system-view
interface interface-type
interface-number
loopback { external | internal }
Command
system-view
flow-interval interval
Command
system-view
interface interface-type
interface-number
10
Remarks
N/A
N/A
By default, loopback testing on an
Ethernet interface is disabled.
Remarks
N/A
The default statistics polling interval
for an interface is 300 seconds.
Remarks
N/A
N/A