Configuring The Interval For Collecting Ethernet Interface Statistics; Enabling Loopback Detection On An Ethernet Interface - 3Com MSR 50 Series Configuration Manual

94 C 3: E
HAPTER THERNET
n
Configuring the Interval
for Collecting Ethernet
Interface Statistics
Enabling Loopback
Detection on an
Ethernet Interface
I C
NTERFACE ONFIGURATION
To do...
Enter Enter
Ethernet Ethernet
interface interface
view or port view
group view
Enter port
group view
Configure the broadcast
storm suppression ratio or
the maximum PPS allowed
on the Ethernet interface
Configure multicast storm
suppression ratio or the
maximum PPS allowed on
the Ethernet interface
Configure the unknown
unicast storm suppression
ratio or the maximum PPS
allowed on the Ethernet
interface
If you set the suppression ratio in interface view or port group view repeatedly, the
last configuration takes effect.
Complete the following configuration tasks to configure the time interval for
collecting interface statistics. Use the display interface command to display the
interface statistics within this time interval.
Follow these steps to configure the interval for collecting interface statistics:
To do...
Enter system view
Configure the time
interval for collecting
interface statistics
This configuration applies to all the Layer 2 ports.
The purpose of loopback detection is to detect loops on an interface.
When loopback detection is enabled on an Ethernet interface, the device will
routinely check whether the ports have any external loopback. If it detects a
loopback on a port, the device will turn that port under loopback detection mode.
If loops are detected on a port that is of access type, the port will be shutdown.
■
Meanwhile, trap messages will be sent to the terminal, and the corresponding
MAC address forwarding entries will be removed.
To use...
interface interface-type
interface-number
port-group { manual
port-group-name |
aggregation agg-id }
broadcast-suppression
{ ratio | pps max-pps }
multicast-suppression
{ ratio | pps max-pps }
unicast-suppression { ratio |
pps max-pps }
Use the command...
system-view
flow-interval interval
Remarks
Use either command
Configured in interface view,
the setting is effective only on
the current interface; configured
in port group view, the setting is
effective on all the ports in the
current port group.
Optional
Currently, the ratio argument
can only be 100; and the
max-pps argument can be 190,
380, 760, 1488, 2976, 5952, or
11904.
Optional
Currently, the ratio argument
can only be 100; and the
max-pps argument can be 190,
380, 760, 1488, 2976, 5952, or
11904.
Optional
Currently, this command is not
supported.
Remarks
-
Optional
The default interval for collecting
interface statistics is 300 seconds.