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  Viewing Channelization Properties
For T1 or E1 entries, the TDM properties presented in Table 26-7 are displayed in physical inventory in 
addition to the existing T1 or E1 properties.
Viewing Channelization Properties
Prime Network supports the channelization of SONET/SDH and T3 4.3.2. When a line is channelized, 
it is logically divided into smaller bandwidth channels called paths. These paths (referred to as high 
order paths or HOPs) can, in turn, contain low order paths, or LOPs. The sum of the bandwidth on all 
paths cannot exceed the line bandwidth. 
For SONET show and configuration commands, see Configuring SONET, page 26-53.
The following topics describe how to view channelization properties for SONET/SDH and T3 4.3.2:
Viewing SONET/SDH Channelization Properties, page 26-18
Viewing T3 DS1 and DS3 Channelization Properties, page 26-21
Table 26-7 TDM-Specific Properties for DS1 (T1 or E1) in Physical Interfaces
Field Description
International Bit Whether or not the international bit is used by the controller: 
0—The international bit is not used.
1—The international bit is used.
This property applies only to E1.
National  Bits Whether or not the national reserve bits (sa4, sa5, sa6, sa7, and sa8) are used 
by the controller: 
0—The national reserve bits are not used.
1—The national reserve bits are used.
This property applies only to E1. 
Line Code Line encoding method for the DS1 link:
For E1, the options are Alternate Mark Inversion (AMI) and 
high-density bipolar of order 3 (HDB3).
For T1, the options are AMI and bipolar with 8 zero substitution (B8ZS).
Cable Length For T1 ports in short-haul mode, the length of the cable in feet.  
						

							 
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Viewing SONET/SDH Channelization Properties
SONET and SDH use the same concepts for channelization, but the terminology differs. Table 26-8 
describes the equivalent terms for SONET and SDH channelization. The information displayed in the 
Vision client reflects whether SONET or SDH is configured on the interface.
To view SONET/SDH channelization properties: 
Step 1In the Vision client, right-click the required device, then choose Inventory. 
Step 2Choose Physical Inventory > Chassis >slot>subslot>SONET/SDH-interface. The properties for 
SONET/SDH and OC-3 are displayed in the content pane. See Figure 26-10. 
Figure 26-10 SONET/SDH Interface in Physical Inventory
Table 26-9 describes the information that is displayed for SONET/SDH and OC3 in the content pane. 
Table 26-8 SONET and SDH Channelization Terminology
Concept SONET Term SDH Term
Frame Synchronous Transport Signal 
level N (STS-N)Synchronous Transport Module 
level N (STM-N)
HOP channel STS-1 Administrative Unit (AU-n)
Lower-order channels Virtual Tributary (VT) Tributary Unit Group (TUG)
LOP payloads DS1, DS3, or E1 
						

							 
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  Viewing Channelization Properties
Step 3To view additional information about a channelized path, double-click the required entry in the 
Description column. The SONET/SDH High Order Path Properties window is displayed as shown in 
Figure 26-11. 
Table 26-9 SONET/SDH and OC3 Properties
Field Description
SONET/SDH High Order Path (HOP) Area
Description SONET/SDH path description including the interface and high order 
path. Double-click an entry to view additional details about the path. 
Channelization Type of channelization, such as STS-1 or STM-1. 
Admin Status Administrative status of the HOP. 
Oper Status Operational status of the HOP. 
OC3 Area
Admin Status Administrative status of the OC-3 line. 
Oper Status Operational status of the OC-3 line.
Port Type Type of port. 
Last Changed Date and time of the last status change of the line.
Scrambling Any scrambling that has been applied to the SONET payload. 
Maximum Speed Maximum bandwidth for the line. 
Loopback Loopback setting configured on the line. 
Port Description Description of the port defined by the user.
Clocking Clocking configured on the line. 
Specific Type Specific type of line; in this case, OC3.
Internal Port Whether or not the line includes an internal port: True or False.
Ss Ctps Table Size Size of the SONET/SDH Connection Termination Point (CTP) table.  
						

							 
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Figure 26-11 SONET/SDH High Order Path Properties Window
Table 26-10 describes the information displayed in SONET/SDH High Order Path Properties window. 
Table 26-10 SONET/SDH High Order Path Properties
Field Description
Description SONET/SDH path description including the interface and high order 
path. Double-click an entry to view additional details about the path. 
Channelization Type of channelization, such as Synchronous Transport Signal 1 
(STS-1) or Synchronous Transport Module level 1 (STM-1). 
Admin Status Administrative status of the HOP. 
Oper Status Operational status of the HOP. 
Port Type Type of port. 
Last Changed Date and time of the last status change of the path.
Maximum Speed Maximum bandwidth for the line. 
MTU MTU for the path. 
Applique Type Sub-STS-1 facility applied to this path. In this example, the facility 
applied is Virtual Tributary 1.5 (VT1.5). 
Sending Alarms Whether or not the path is sending alarms: True or False. 
Low Order Path Tab
Description Description of the low order path down to the T1 level, including the 
channel types (such as STS-1, VTG, or VT) and channel allocated.
Physical Port Hyperlinked entry to the port in physical inventory.  
						

							 
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Viewing T3 DS1 and DS3 Channelization Properties
To view T3 DS1 and DS3 channelization properties: 
Step 1In the Vision client, right-click the required device, then choose Inventory. 
Step 2Choose Physical Inventory > Chassis >slot>subslot>T3-interface. 
Figure 26-12 shows DS1 channelization properties for T3 in physical inventory.
Figure 26-12 T3 DS1 Channelization Properties in Physical Inventory
Channelization Channelization that occurs through the path, such as 
STS1-> VTG-> VT15.
Admin Status Administrative status of the path.
Oper Status Operational status of the path. 
Clocking Source of the clocking mechanism: Internal or Line. 
Supported Alarms Tab
Name Supported alarm. 
Enable Whether the alarm is enabled or disabled.
Table 26-10 SONET/SDH High Order Path Properties (continued)
Field Description 
						

							 
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Table 26-11 describes the information that is displayed for Channelized DS1 and DS3 in the content 
pane. 
Table 26-11 Channelized DS1 and DS3 Properties
Field Description
Channelized DS1 Table
Description Path description including the physical interface and the channel 
number. Double-click an entry to view additional details about the path. 
Physical Port Physical port for the channelized line. 
Channelization Type of channelization, such as channelized T3 (CT3) to T1. 
Admin Status Administrative status of the channelized line. 
Oper Status Operational status of the channelized line. 
VDC For devices with multiple virtual contexts, the context associated with 
the channelized line.
Clocking Clocking configured on the line: Internal or Line. 
						

							 
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Step 3To view additional information about a DS1channelized path, double-click the required entry in the 
Channelized DS1 table. Figure 26-13 shows the information that is displayed in the Channelized DS1 
PDH Properties window. 
DS3 Area
Admin Status Administrative status of the DS3 line. 
Oper Status Operational status of the DS3 line.
Port Type Type of port. 
Last Changed Date and time of the last status change of the line.
Maximum Speed Maximum bandwidth for the line. 
Port Description Description of the port configured on the interface.
Recovered Clocking ID Recovered clock identifier, if known. 
Scrambling Any scrambling that has been applied to the SONET payload. 
Framing Type of framing applied to the line. 
Loopback Loopback setting configured on the line. 
Clocking Clocking configured on the line: Internal or Line.
Alarm State Alarm state of the DS3 line: 
Clear—The alarm state is clear.
AIS—Alarm Indication Signal (AIS).
LOS—Loss of signal (LOS) alarm. 
AIS_LOS—AIS loss of signal alarm.
LOF—Loss of frame (LOF) alarm.
AIS_LOF—AIS loss of frame alarm.
LOS_LOF—Loss of signal and loss of frame alarm.
AIS_LOS_LOF—AIS loss of signal and loss of frame alarm.
Unknown—Unknown alarm.
Internal Port Whether or not the line includes an internal port: True or False.
Line Code Line coding applied to the line. 
Table 26-11 Channelized DS1 and DS3 Properties (continued)
Field Description 
						

							 
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Figure 26-13 Channelized DS1 PDH Properties Window
Table 26-12 describes the information that is displayed in the Channelized DS1 PDH Properties window. 
Table 26-12 Channelized DS1 PDH Properties Window
Field Description
Location Area
Description Path description including the physical interface and the channel 
number. 
Channelization Type of channelization used on the line, such as CT3-> T1. 
Admin Status Administrative status of the channelized line. 
Oper Status Operational status of the channelized line. 
Alarm State Alarm state of the DS1 line: 
Clear—The alarm state is clear.
AIS—Alarm Indication Signal (AIS).
LOS—Loss of signal (LOS) alarm. 
AIS_LOS—AIS loss of signal alarm.
LOF—Loss of frame (LOF) alarm.
AIS_LOF—AIS loss of frame alarm.
LOS_LOF—Loss of signal and loss of frame alarm.
AIS_LOS_LOF—AIS loss of signal and loss of frame alarm.
Unknown—Unknown alarm. 
						

							 
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  Viewing MLPPP Properties
Viewing MLPPP Properties
Multilink PPP (MLPPP) is a protocol that connects multiple links between two systems as needed to 
provide bandwidth when needed. MLPPP packets are fragmented, and the fragments are sent at the same 
time over multiple point-to-point links to the same remote address. MLPPP provides bandwidth on 
demand and reduces transmission latency across WAN links. 
To view MLPPP properties: 
Step 1In the Vision client, right-click the required device, then choose Inventory. 
Step 2In the Inventory window, choose Logical Inventory > MLPPP. See Figure 26-14.  Sending Alarms Whether or not the line is sending alarms: True or False. 
Maximum Speed Maximum bandwidth for the line. 
Framing Type of framing applied to the line. 
Line Code Line coding applied to the line. 
Loopback Loopback setting configured on the line. 
Clocking Clocking configured on the line: Internal or Line.
Recovered Clock ID Recovered clock identifier, if known. 
Group Table
This table appears only if a DS0 bundle is configured on a channelized DS1 line. The properties 
that are displayed pertain to the DS0 bundle.
Group Name of the DS0 bundle. 
Time Slots Range of timeslots (DS0 channels) allotted to the group.
Oper Status Operational status of the group.
Encapsulation Type of encapsulation used, such as High-Level Data Link Control 
(HDLC).
Admin Status Administrative status of the group. 
ID DS0 bundle identifier. 
Table 26-12 Channelized DS1 PDH Properties Window (continued)
Field Description 
						

							 
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Figure 26-14 MLPPP Properties in Logical Inventory