Alcatel Carrier Internetworking Solutions Omni Switch/Router - Manual (Page 871)

The WAN Port Software Menu
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.”
Configuring 31 Timeslots on a WAN E1 Port
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 temod command. (See Chapter 33, “Managing
T1 and E1 Ports,” for more information on the temod 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 wpmodify command. (See Modifying a Port on
page 28-14 for more information on the wpmodify 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 temod <slot>/<port> at the system prompt, where <slot> is the slot number of the
module with the E1 port and <port> is the port number of the E1 port. For example, to
configure WSX E1 port 4/2, enter temod 4/2 .
2. Enter 2=4 at the prompt to set the frame type to E1 or enter 2=5 at the prompt to set the
frame type to E1-CRC.
3. Enter save at the prompt to save your settings.
4. Enter wpmodify <slot>/<port> or wpm <slot>/<port> at the system prompt, where <slot> is the
slot number of the module with the E1 port and <port> is the port number of the E1 port.
For example, to configure WSX E1 port 4/2, enter wpm 4/2 . (Note: wpm is the abbreviated
for of wpmodify .)
5. Enter 3=1 to set the starting timeslot to 1.
6. Enter 4=31 to set the number of timeslots to 31.
7. Enter save at the prompt to save your settings.