Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual page 649

NOTE: When configuring T1 and CT1 interfaces on 10-port Channelized E1/T1 IQE
PICs, the
hierarchy level.
rate
to a bit error rate from 10
algorithm
the pattern to send in the bit stream by including the
[edit interfaces interface-name interface-options]
For a list of supported algorithms, enter a
example:
For specific hierarchy information, see individual interface types. For information
about running the BERT procedure, see the JUNOS System Basics and Services Command
Reference.
Configuring the T1 Buildout
A T1 interface has five possible setting ranges for the T1 line buildout:
266-398
setting (0-132).
To have the interface drive a line at one of the longer distance ranges, include the
buildout
t1-options]
Configuring T1 Byte Encoding
By default, T1 interfaces use a byte encoding of 8 bits per byte (nx64). You can
configure an alternative byte encoding of 7 bits per byte (nx56).
To have the interface use 7 bits per byte encoding, include the
at the
option:
bert-period statement must be included at the
is the bit error rate. This can be an integer from 0 through 7, which corresponds
–0
is the pattern to send in the bit stream. On T1 interfaces, you can also select
[edit interfaces interface-name interface-options]
bert-algorithm algorithm;
[edit interfaces t1-0/0/0 t1-options]
user@host# set bert-algorithm ?
Possible completions:
pseudo-2e11-o152 Pattern is 2^11 -1 (per O.152 standard)
pseudo-2e15-o151 Pattern is 2^15 - 1 (per O.152 standard)
pseudo-2e20-o151 Pattern is 2^20 - 1 (per O.151 standard)
pseudo-2e20-o153 Pattern is 2^20 - 1 (per O.153 standard)
, , or
399-531 532-655
statement with the appropriate value at the
hierarchy level:
[edit interfaces interface-name t1-options]
buildout value;
[edit interfaces interface-name t1-options]
Chapter 31: Configuring T1 Interfaces
[edit interfaces ct1-fpc/pic/port]
–7
(1 error per bit) to 10 (1 error per 10 million bits).
bert-algorithm
hierarchy level:
? after the bert-algorithm
feet. By default, the T1 interface uses the shortest
[edit interfaces interface-name
hierarchy level, specifying the
Configuring the T1 Buildout
statement at the
statement; for
0-132 , 133-265 ,
byte-encoding statement
nx56
579