Alcatel Carrier Internetworking Solutions Switch/Router ユーザーズマニュアル

Page 28-45

♦ Note ♦

The section devoted to compressed data traffic statistics 
will be displayed only if the port has been configured 
for STAC-LZS compression.

For detailed descriptions of the fields, refer to Chapter 30, “Point-to-Point Protocol.”

On 

WSX

 E1 ports, the unframed format is not supported since 

WSX

s only support standard E1 

framing for PPP or Frame Relay (the “unframed” format is only supported for unstructured 
Circuit Emulation T1 or E1 ports).

WSX

 E1 ports must be set to one of the standard E1 Framing 

types (E1, E1-CRC, E1-MF, E1-MF-CRC) with the 

 command. (See Chapter 33, “Managing 

T1 and E1 Ports,” for more information on the 

 command.)

Most E1 services only allow a maximum of 30 usable timeslots since timeslot 0 is always used 
for Frame Synchronization (which is why you cannot use unframed for Frame Relay or PPP 
ports since you must specify how timeslot 0 is used) and timeslot 16 is usually used for 
multiframe sequencing.

The 

WSX

 can support 31 timeslots for cases where timeslot 16 is not used for multiframe 

control. When you configure the timeslots for a 

WSX

 E1 port, you specify a starting timeslot 

followed by a number of timeslots by using the 

 command. (See Modifying a Port on 

 command.)

Normally, the 

WSX

 will use a default configuration that skips timeslot 16 automatically. In this 

way, it will select the E1 frame to generate E1 timeslot 0 (the “synchronization” timeslot), but 
leave timeslot 16 (the “multiframe control” timeslot) free. The WAN port configuration 
software when configured for 31 timeslots will then use all timeslots from 1 to 31 to give you 
a full E1 where timeslot 16 is also used for data. Again, this should only be done for facilities 
that do not require E1 Multi-Frame. For those types of E1 lines, they can support a maximum 
of 30 timeslots. Only those E1 lines that do not require E1 multiframe can be configured in 
the method described below.

To configure a WAN E1 port for 31 timeslots, follow the steps below:

1. Enter 

 at the system prompt, where 

 is the slot number of the 

module with the E1 port and 

 is the port number of the E1 port. For example, to 

configure 

WSX

 E1 port 4/2, enter 

.

2. Enter 

 at the prompt to set the frame type to E1 or enter 

 at the prompt to set the 

frame type to E1-CRC.

3. Enter 

 at the prompt to save your settings.

4. Enter 

 or 

 at the system prompt, where 

 is the 

slot number of the module with the E1 port and 

 is the port number of the E1 port. 

For example, to configure 

WSX

 E1 port 4/2, enter 

. (Note: 

 is the abbreviated 

for of 

.)

5. Enter 

 to set the starting timeslot to 1.

6. Enter 

 to set the number of timeslots to 31.

7. Enter 

 at the prompt to save your settings.