Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual page 966

JUNOS 10.1 Network Interfaces Configuration Guide
but a portion of the total bandwidth is consumed by the TDM overhead. When a
SONET/SDH stream consists of only a single, very high speed payload, it is referred
to as operating in concatenated mode. A SONET/SDH interface operating in this
mode has a "c" added to the rate descriptor. For example, a concatenated OC48
interface is referred to as OC48c.
SONET and SDH traffic streams exhibit very few differences in behavior that are
significant to Juniper Networks SONET/SDH interfaces; in general, this chapter uses
SONET/SDH to indicate behavior that is identical for the two standards. However,
there is one important difference that requires you to configure the interface
specifically for SONET or SDH mode. That difference is in the setting of two bits (the
ss-bits) in the pointer. SONET equipment ignores these bits, but SDH equipment uses
them to distinguish a VC-4 payload from other types. When configured in SDH mode,
Juniper Networks SONET/SDH PICs set the ss-bits to
information, see the JUNOS System Basics Configuration Guide.
CAUTION: To extend the life of the laser, when a SONET/SDH PIC is not being actively
used with any valid links, take the PIC offline until you are ready to establish a link
to another device. To do this, issue the
pic-slot slot-number
user@host> request chassis pic offline fpc-slot slot-number pic-slot slot-number
After you have connected the PIC to another device, bring the PIC back online by
issuing the
mode command.
user@host> request chassis pic online fpc-slot slot-number pic-slot slot-number
For information about taking a PIC offline or online, see the
command and the
and Services Command Reference.
Configuring SONET/SDH Physical Interface Properties
To configure SONET/SDH physical interface properties, include the
statement at the
896
Configuring SONET/SDH Physical Interface Properties
operational mode command:
request chassis pic online fpc-slot slot-number pic-slot slot-number
request chassis pic online
[edit interfaces interface-name]
[edit interfaces so-fpc/pic/port]
framing (sdh | sonet);
sonet-options {
aggregate asx;
aps {
advertise-interval milliseconds;
annex-b
authentication-key key;
force;
hold-time milliseconds;
lockout;
neighbor address;
paired-group group-name;
(binary 10). For more
s1s0 2
request chassis pic offline fpc-slot slot-number
request chassis pic offline
command in the JUNOS System Basics
hierarchy level:
operational
sonet-options