T3 Controllers; Hdlc; Table 13: Identifiers For T3 Controllers - Juniper JUNOSE 11.0.X PHYSICAL LAYER Configuration Manual

JUNOSe 11.0.x Physical Layer Configuration Guide
Table 12: Definitions for Identifiers for SONET/SDH VT Controllers (continued)

T3 Controllers

You can configure the STS-1 frame to carry a single T3 signal through asynchronous
mapping. As Figure 9 on page 114 shows, T3 on cOCx/STMx interfaces supports the
following options:
For any configuration, you must identify the path and each controller in the layers
above the path layer. For example, for a T3 controller channelized to T1, you must
identify the path channel, the T3 channel, and the T1 channel. Table 13 on page 116
presents the identifiers for the T3 configurations.

Table 13: Identifiers for T3 Controllers

HDLC

You must configure HDLC over the T3, unframed E1, or fractional T1/E1 line that
you configure on an interface. As Figure 8 on page 113 shows, HDLC is at the top
layer of the interface stack.
116
Platform Considerations
Identifier Definition
tributaryGroup Number of the tributary
group within the path
tributaryNumber Number of the tributary
within the group
channelGroup A fraction of a T1 or an E1
line
An unchannelized T3 controller
A T3 controller channelized to DS0 (fractional T1). To configure fractional T1
over T3 on cOCx/STMx interfaces, you assign timeslots (also known as
subchannels) to the T1 channel. Each T1 channel supports 24 T1 timeslots.
Configuration
Unchannelized T3
T3 channelized to DS0
Value
In SONET mode, tributary group is the
number of the VT group. In SDH mode,
tributaryGroup is the number of the TUG-2
group.
In SONET mode, tributaryNumber is the
number of the VT. In SDH mode,
tributaryNumber is the number of the TUG-1
group or tributary unit.
A number in the range 1-24 for T1 or 1-31
for E1
Identifier
pathChannel/ds3-
channel-number
pathChannel/ds3Channel-number/ds1-
channel-number/subchannelNumber
Example
1/1
1/1/10/15