Configuring Error Packets Diffusion Restraint; Displaying And Maintaining Ce1/Pri Interfaces; Ct1/Pri Interface; Overview - 3Com MSR 50 Series Configuration Manual

110 C 4: WAN I
HAPTER
Configuring Error
Packets Diffusion
Restraint
Displaying and
Maintaining CE1/PRI
Interfaces

CT1/PRI Interface

Overview

C
NTERFACE ONFIGURATION
n
The support of this feature varies with device model. Refer to your specific device.
Error packet diffusion refers to the situation when one timeslot receives a certain
error packet, all the other timeslots are affected and also receive error packets.
You can restrain error packet diffusion by configuring three parameters:
detect-timer, renew-timer, threshold, which function in the following way:
If, during the time specified by detect-timer, the ratio of error packets on an
interface is greater than that specified by threshold, the interface is regarded as
faulty and is shut down. After waiting for some time specified by renew-timer, the
interface is re-enabled.
Follow these steps to configure error packets diffusion restraint:
To do...
Enter system view
Enable error packets diffusion error-diffusion restraint
Configure the parameters of
error packets diffusion
restraint
Restart the channel that is
shut down for the sake of
error packets restraint
To do...
Display the operating state of
a CE1/PRI interface
Display the operating state of
a channel set or PRI set
Clear the controller counter
for a CE1/PRI interface
A CT1/PRI interface can only operate in channelized mode. It can be used in the
following two ways:
When it is working as a CT1 interface, all the timeslots from 1 to 24 can be
■
randomly divided into groups. Each of these groups can form one channel set
for which the system automatically creates an interface logically equivalent to a
synchronous serial interface. This interface supports link layer protocols such as
PPP, FR, LAPB, and X.25, and network protocols such as IP and IPX.
Use the command...
system-view
enable
error-diffusion restraint
config detect-timer
renew-timer threshold
error-diffusion restraint
restart-channel serial
interface-number:set-number
Use the command...
display controller e1
[ interface-number ]
display interface serial
interface-number:set-number
reset counters controller e1
interface-number
Remarks
-
Required
Optional
By default, the value of
detect-timer is 30 seconds, of
renew-timer is 600 seconds;
the threshold is 20%
Optional
Remarks
Available in any view
Available in any view
Available in user view