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Warning DefinitionA-4
DC Power Supply WarningA-6
Installation WarningA-7
Power Cord WarningA-7
No On/Off Switch WarningA-8
SELV Circuit WarningA-9
Laser Radiation WarningA-10
Laser Beam WarningA-11
Power Cabling WarningA-11
Grounded Equipment WarningA-12
Ground Connection WarningA-13
Jewelry Removal WarningA-14
Qualified Personnel WarningA-15
Supply Circuit WarningA-15
Power Supply Wiring WarningA-16
Invisible Laser Radiation WarningA-17
Incorrect Connection WarningA-18
Ground Conductor WarningA-19
Voltages on DC-input Power Supply TerminalsA-20
More Than One Power SupplyA-21
Cisco ONS 15216 EDFA2 Rack InstallationA-21
Exposed DC Power Wire WarningA-22
48 VDC Power SystemA-23
Chassis Power ConnectionA-24
Cisco ONS 15216 EDFA2 Temperature RequirementA-25
VCCI Compliance for Class B EquipmentA-26
SELV-IEC 60950 DC Power Supply WarningA-26
Cisco ONS 15216 EDFA2 Power Circuit Overload WarningA-27
Product Disposal WarningA-28
Energy HazardA-29
Unit Grounding Protection WarningA-30
DC Power Disconnection WarningA-31
Ground Wire WarningA-32
Declaration of Conformity with Regard to the Directives 73/23/EEC and 89/336/EEC as amended by
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Class B EMC WarningA-35
Safety Requirements WarningA-35
Laser Radiation WarningA-36
Fiber Disconnect Sequence WarningA-37
Optical Connector WarningA-38
Optical Connector Disconnect WarningA-38
Eye Damage WarningA-39
Static Electricity WarningA-40
Connector Cleaning WarningA-41
Cable Connection Sequence WarningA-42
Module Removal WarningA-43
DC Power SELV Requirement WarningA-44
Reinforced Insulation WarningA-45
Power Supply Voltage WarningA-46
DC Power Supply Connection WarningA-46
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Preface
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Technical Assistance Center
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Obtaining Additional Publications and Information
Information about Cisco products, technologies, and network solutions is available from various online
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• The Cisco Product Catalog describes the networking products offered by Cisco Systems as well as
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This manual describes how to install and operate the Cisco Optical Network System (ONS) 15216
Erbium-Doped Fiber Amplifier 2 (EDFA2). The ONS 15216 EDFA2 is an optical amplifier that enables
the migration to next-generation all-optical networks. It features bandwidth-on-demand and wavelength
protection switching that extend dense wavelength division multiplexing (DWDM) links by hundreds of
kilometers.
With the ONS 15216 EDFA2, optical signals from a span in a DWDM network can be added or dropped
without negatively affecting (degrading) other optical signals on the same span.
1.1 Bandwidth On Demand
The ONS 15216 EDFA2 is a technology for bandwidth-on-demand wavelength services. Depending on
the settings and the input power, every wavelength in a ONS 15216 EDFA2 is guaranteed to be amplified
by 13 to 22 dB. With the ONS 15216 EDFA2’s gain control technology, amplification for each
wavelength remains constant at all times as wavelengths are added or dropped from an optical fiber. As
long as the total (composite) input power of all wavelengths is between 4 dBm and –27 dBm, any number
of wavelengths can be amplified.
CHAPTER
1
1.2 Wavelength Protection Switching
The ONS 15216 EDFA2 uses wavelength protection switching to restore wavelengths that are lost in the
event of a fiber cut or other loss of signal. Figure 1-1 on page 1-2 shows an example of wavelength
protection switching. In this example, two wavelengths are routed clockwise around a metro ring, and
two wavelengths are routed counter-clockwise around the same ring. Of the two counter-clockwise
wavelengths, only one transits the span linking locations D and C. If a fiber cut occurred on this span,
the affected wavelength could be restored by rerouting it (clockwise) around the ring to location D.
Wavelength protection switching minimizes the amount of bandwidth allocated for restoration because
only the affected wavelength is restored, not the entire fiber.
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Figure 1-1Wavelength Protection Switching
Wavelength is rerouted
C
B
A
Before
After a protection switch occurs, the number of wavelengths on each fiber changes. In the example, the
number of clockwise wavelengths increases to three, while the number of counter-clockwise
wavelengths decreases to one.
1.3 Key Features
Figure 1-2 shows a block diagram of the ONS 15216 EDFA2.
Figure 1-2ONS 15216 EDFA2 Block Diagram
C
D
B
A
After
Fiber Cut
D
61990
VOA
Gain
IsolatorIsolator
Pump
Laser
Flattening
Filter
Pump
Laser
Control Circuit
Microcontroller
5VDC
External AlarmsRx Tx
RS232
Output Input
Output
Monitor
71172
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The ONS 15216 EDFA2 has the following key features:
• Adjustable constant gain of 13 to 22 dB
• Gain flattening < 2 dB (peak to valley)
• Transient suppression
• Low noise figure of < 7 dB at –5 dBm input
• Simple Network Management Protocol (SNMP) MIBs
• Transaction Language 1 (TL1)
1.3.1 Constant Gain
Constant amplification (gain) per wavelength is important for ensuring that variations in power between
channels at the receivers is minimized. As wavelengths are added/dropped from an optical fiber, small
variations in gain between channels in a span can cause large variations in the power difference between
channels at the receivers. The ONS 15216 EDFA2 enables bandwidth-on-demand services by
guaranteeing that every wavelength is amplified by a value that can be set between 13 and 22 dB, no
matter how many wavelengths are being amplified.
Constant gain is achieved using an automatic control circuit that adjusts pump power when changes in
input power are detected. The ONS 15216 EDFA2 operates in Constant Gain Temperature Compensated
mode by default, but since there may be applications where other operating modes may be required, the
ONS 15216 EDFA2 can be set to operate in any one the following pump control modes:
Key Features
• Constant Gain Temperature Compensated mode
• Constant Output Power mode
• Constant Pump Current mode
• Constant Pump Power mode
1.3.2 Gain Flattening
Figure 1-3 illustrates the effect of the gain flattening filter in the ONS 15216 EDFA2. Fiber (a) in the
figure shows a set of channels with equal powers being input to a cascaded network of amplifiers that
produce vastly different power levels and optical signal-to-noise ratios (OSNR) at the output. In contrast,
fiber (b) shows how the EDFAs effectively reduce this effect by introducing a gain flattening filter within
each amplifier.
Figure 1-3Gain Flattening Filter
a
b
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1.3.3 Transient Suppression
Transients in the performance of optical amplifiers are inevitable whenever the number of signals, or the
relative power of signals, changes. The ONS 15216 EDFA2 uses transient suppression to reduce the
amount of time required by an amplifier to recover from a change. This indicates the suitability of the
amplifier for add/drop applications like those described earlier.
1.3.4 Low Noise
Whenever there is gain in an optical system, noise also occurs. The predominant source of noise in
EDFAs is amplified spontaneous emission (ASE). The ONS 15216 EDFA2 has a low noise figure of less
than 7 dB at –5 dBm input.
1.3.5 SNMP MIBs
The ONS 15216 EDFA2 SNMP MIBs contain definitions of management information that allows
network systems to be remotely monitored, configured, and controlled.
Chapter 1 Applications
1.3.6 TL1
The ONS 15216 EDFA2 has a TL1 interface available to the network operator and craftsperson.
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Technical Specifications
This chapter discusses the technical specifications for the Cisco ONS 15216 EDFA2.
2.1 Optical Specifications
ONS 15216 EDFA2 optical specifications are listed and described in Tabl e 2-1.
Table 2-1ONS 15216 EDFA2 Optical Specifications
RequirementSpecification
Input signal wavelength1530 nm to 1563 nm
Input power (channel total)–27 dBm to 4 dBm (total all channels)
CHAPTER
See the “Maximum Input Power” section on page 2-2 and
“Channel Loading” section on page 2-2 for more information.
2
NoteIn the event of a fiber cut or loss of connection, and
there is no input power, the ONS 15216 EDFA2 has
–3.5 dBm of output power. For additional safety
information, see the “Safety Requirements” section on
page 3-3.
Mode of operationUnidirectional (two common fibers: one transmit, one receive)
Maximum output power17 ± 0.6 dBm
Signal gain per channel13 dB to 22 dB
Channel gain deviation from setpoint ± 1.25 dB
Gain flattened< 2 dB (peak to valley)
Maximum noise figure< 7 dB at –5 dBm input power
Polarization mode dispersion (PMD) < 0.6 ps
Input/output optical return loss > 27 dB
Backward ASE power–30 dBm maximum
Polarization sensitivity< 0.5 dB
Automatic gain control (AGC)The ONS 15216 EDFA2 contains an active gain block with an
automatic gain control loop to minimize the effects of output
power variations per wavelength upon adding or deleting
wavelengths on the same DWDM ring.
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2.1.1 Maximum Input Power
The ONS 15216 EDFA2 operates at a gain setting between 13 and 22 dB. Each gain setting has a
maximum input power. The maximum input power is defined as 17 dBm (the maximum output power)
minus the gain setting. For example, at a gain setting of 22 dB, the maximum input power is –5 dBm. At
a gain setting of 13 dB, the maximum input power is 4 dBm. Prolonged operation beyond the maximum
input power can shorten the life of the ONS 15216 EDFA2.
External optical attenuators are required to reduce the total input power to less than or equal to 4 dBm.
2.1.2 Channel Loading
You can ensure a smooth upgrade path from a single channel to the maximum numbers of channels with
a minimum disruption of service if the per-channel power of the single channel is properly set from the
start. The per-channel power should be set so that at full channel loading, the total input power is less
than the maximum power indicated in Table 2- 2. For example, if the maximum number of channels at
full loading is 18 and the gain is set to 22 dB, the maximum per channel power is –17.6 dBm.
Use Tabl e 2-2 to calculate per-channel power as a function of the maximum total number of channels at
full loading. Contact Cisco TAC with any questions or concerns regarding maximum input power or
setting the upgrade path.
Chapter 2 Technical Specifications
Table 2-2Maximum Channel Power
Composite Input
Power (dBm)43210–1–2–3–4–5
Corresponding
Max. Gain (dB)13141516171819202122
Number of
Channels at Full
LoadingMaximum per Channel Input Power at Maximum Gain Setting (dBm)
Input voltage–48 VDC
Maximum power consumption< 25 W at 65
Minimum supply voltage–40 VDC
Minimum turn-on supply voltage–43 VDC
Maximum supply voltage–57 VDC or under
Maximum current0.52 A
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2.3 Mechanical Specifications
Table 2-4 lists the ONS 15216 EDFA2 mechanical specifications.
Dimensions (H x W x D)1 3/4 in. x 17 3/16 in. x 11 in. (4.4 cm x 43.7 cm x 27.9 cm)
Weight5.45 lb (2.47 kg)
Ambient operating temperature32
Storage temperature–40 to 185
Humidity operationRelative humidities of 5 to 95%, non-condensing. With ambient
Humidity storageRelative humidities of 5 to 95%, non-condensing. With ambient
Connector typesSC/UPC Bulkhead connectors
Mean time between failures
(MTBF)
Chapter 2 Technical Specifications
to 122°F (0 to 50°C)
°F (–40 to 85°C)
temperatures above 84
limited to that corresponding to a specific humidity of 0.024
pounds of water per pound of dry air.
temperatures above 84
limited to that corresponding to a specific humidity of 0.024
pounds of water per pound of dry air.
12.7 years as per calculation procedure outlined in
TR-NWT-000332, Issue 4, Method 1
° F (29°C), the relative humidity may be
° F (29°C), the relative humidity may be
2.4 External Features
The ONS 15216 EDFA2 has the following external features:
• Front panel LEDs, graphics, and warning displays
• Brackets for rack mounting (including reversible ears that permit front, mid,
and rear mounting)
• Rear and side cooling vents
• Access door for fiber cleaning
• Fiber routing and retaining feature
• Two threaded grounding studs on rear and a pair of threaded grounding holes on each side
• Screw lug terminal block for power connection
• RJ-45 connector for external alarm connection
• RJ-45 connector for LAN connection
• SC/UPC connectors for optical interface
• DB-9 female connector for craft EIA/TIA-232 serial interface connection
Figure 2-1 on page 2-5 displays a mechanical outline of the external features and dimensions of the
ONS 15216 EDFA2.
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Figure 2-1ONS 15216 EDFA2 Dimensions
Front Panel
17 3/16 in. Width
1 3/4 in. Height
11 in. Dimension
2.5 Front Panel
Figure 2-2 shows the ONS 15216 EDFA2 front panel in detail. The front panel provides an all-front
access (fibers, power, alarm contact, and management interface) that complies with international
standards.
Figure 2-2ONS 15216 EDFA2 Front Panel
-48V A
R A
-48V A
RET A
Fiber
input
port
Fiber
output
port
Fiber
output
monitor
port
Status
LEDs
POWER
FAIL
LOS
Power
level
warning
CISCO ONS 15216
(EIA/TIA-232)
RS-232
RS-232
Alarm
out
ALARM OUT
LAN port
LAN LEDs
71177
LAN
-48V B
R B
71176
-48V B
RET B
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Cisco ONS 15216 EDFA2 Operations Guide
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Table 2-5ONS 15216 EDFA2 Front Panel Features
FeatureDescription
Terminal stripTerminal strip for supplying power to the ONS 15216 EDFA2. Attach
AWG 18 stranded power wires to appropriate terminals.
Threaded grounding holesThreaded grounding holes (#10-32) to ground the ONS 15216 EDFA2.
Alarm OutRJ-45 connector used for alarm system connection. (See the “Alarm
Out Relay Interface (RJ-45)” section on page 3-5 for additional
information.)
Serial port connection
(EIA/TIA-232)
LabelLaser warnings, designation labels, and power level warning.
Status LEDsLEDs indicating status of power, fail, loss of signal, Ethernet link
Fiber inputSC/UPC fiber input port.
Fiber outputSC/UPC fiber output port.
Monitor outputSC/UPC port for fiber that taps off 1% of output signal for monitoring
Chassis ground lugsRear panel grounding post to attach chassis ground wire using #8-32
LANRJ-45 connector used for 10BASE-T Ethernet connection. For more
Serial port for local or remote (modem) data communication
connection. (See Chapter 3, “Installation” for additional information.)
availability and Ethernet link traffic. (See the “Alarm LEDs” section
on page 3-6.)
purposes.
nut.
information, see the “LAN Interface (Ethernet)” section on page 3-14.
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Installation
3.1 Introduction
This chapter contains the installation procedures for the Cisco ONS 15216 EDFA2. The chapter is
divided into the following sections:
• Power (–48V A, RET A, –48V B, RET B, and chassis ground)
• Optical (fiber input and output ports)
• Communications (Alarm Out, LEDs, RS-232 (EIA/TIA-232), and LAN)
3.2 Standard Precautions
The following standard precautions should be taken when installing the ONS 15216 EDFA2:
CHAPTER
3
• Basic electrical precautions should be taken before powering up the ONS 15216 EDFA2.
• Using standard fiber handling and cleaning procedures is critical when installing optical networking
equipment.
• Eye safety precautions should be employed when handling fiber optic patchcords.
3.3 Placement and Power Connection
3.3.1 General Rack Considerations
The following potential hazards should be considered when installing the ONS 15216 EDFA2 within a
rack:
• Elevated Operating Ambient Temperature—If installed in a closed or multi-module rack assembly,
the operating ambient temperature of the rack environment may be greater than room ambient
temperature. Consideration should be given to installing the equipment in an environment
compatible with the manufacturer’s maximum rated ambient temperature.
• Reduced Air Flow—Installation of the equipment in a rack should be such that the amount of air
flow required for safe operation of the equipment is not compromised. Do not block ventilation
holes beyond what is allowed with supplied mounting brackets.
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• Mechanical Loading—Mounting of the equipment in the rack should be such that it avoids uneven
mechanical loading.
• Circuit Overloading—Consideration should be given to the connection of the equipment to the
supply circuit and the effect that overloading of circuits might have on overcurrent protection and
supply wiring. Appropriate consideration of equipment nameplate ratings should be used.
• Reliable Earthing—Reliable grounding of rack mounted equipment should be maintained. Particular
attention should be given to supply connections other than direct connections to the branch circuit
(i.e., use of power strip, etc.).
Chapter 3 Installation
Warning
The ONS 15216 EDFA2 is intended for installation in a restricted access area. A restricted access area
is where access can only be gained by service personnel through the use of a special tool, lock, key,
or other means of security. A restricted access area is controlled by the authority responsible for the
location.
3.3.2 Rack Installation and Power Supply Connection Procedures
Warning
Step 1Mount the ONS 15216 EDFA2 in the rack (19 inches or 23 inches reversible ears). Empty rack space is
Step 2Connect the –48 VDC power cable to the office fuse panel (user-provided).
Step 3Connect power cable from the office fuse panel to the power bus A terminals on the ONS 15216 EDFA2.
Step 4Repeat Step 3 for power bus B.
Before performing any of the following procedures, ensure that the power is removed from the DC
circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services the
DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit
breaker in the OFF position.
Follow these steps to install the ONS 15216 EDFA2 into the rack and correctly set up the power supply:
not required above or below the ONS 15216 EDFA2.
a. 1.0A fusing is required (user-provided).
b. Use 18 AWG stranded wire (and wire lugs as appropriate).
See Figure 2-2 on page 2-5.
3-2
Step 5Connect the facility ground to the ONS 15216 EDFA2 side panel ground using #10-32 x 3/8-inch
fasteners with lock washers and ground lugs, or connect to the rear panel ground using ring lugs for #8
studs.
Step 6Insert 1.0A fuses into the fuse panel (user-provided).
The Power LED on the front panel of the ONS 15216 EDFA2 should illuminate when the power is
supplied.
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3.4 SC/UPC Optical Ports
SC/UCP optical ports are as follows:
• Optical input signal to be amplified (INPUT)
–
Input must be between –27 dBm and +4 dBm
• Optically amplified output (OUTPUT)
• Optical monitored output signal (MONITOR OUT)
–
1% tap of output or 20 dB below output signal
3.4.1 Safety Requirements
SC/UPC Optical Ports
Warning
Warning
Warning
Procedures that require the fiber connections to be open must only be performed by service personnel
trained in laser safety requirements. Use of controls or performing adjustments or procedures other
than those specified herein may result in hazardous radiation exposure.
Class 1M laser radiation when open. Anyone working with the ONS 15216 EDFA2 must not allow their
eyes or body to be exposed to the laser beam or to a reflection from a mirror-like surface. Additionally,
viewing the laser output with certain optical instruments (eye loupes, microscopes) within a distance
of 100 mm may pose an eye hazard.
In the event of a fiber cut or loss of connection and there is no input power, the ONS 15216 EDFA2 still
has –3.5 dBm of optical output power.
The TL1, SNMP, and command-line interface (CLI) commands can be used to increase the level of laser
energy. Necessary precautions must be taken to avoid exposure to laser energy when using these
commands.
3.4.2 Optical Connection Procedure
Warning
Follow all directions and warning labels when working with optical fibers. To prevent eye damage,
never look directly into a fiber or connector.
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Connect the customer-supplied fiber optic patchcords to the SC/UPC optical ports of the
ONS 15216 EDFA2 using the following procedure. Refer to Figure 3-1 on page 3-4 while performing
this procedure:
Step 1Clean both ends of the two fiber optic patchcords. Refer to the Cisco document “Cleaning Procedure for
Fiber Optic Connectors” for more information.
Step 2Connect the first patchcord between the ONS 15216 EDFA2 OUTPUT connector and the FACILITY
LINE connection.
The measured optical output power should be approximately –3.5 dBm.
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SC/UPC Optical Ports
Step 3Connect the second patchcord to TERMINAL OUTPUT. Measure and record the total optical power:
Step 4If optical power at the end of the TERMINAL OUTPUT patchcord is less than or equal to +4 dBm,
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a. DWDM/OADM output
b. Terminal transmitter output
connect the end to the ONS 15216 EDFA2 input. If the optical power is greater than + 4 dBm, additional
optical attenuation is required to bring optical power below + 4 dBm.
To verify ONS 15216 EDFA2 optical amplification, use the following procedure:
Step 1Connect an optical power meter to the MONITOR OUT port.
Step 2Measure and record the output power. The MONITOR OUT port level is –20 dB less than the signal.
Step 3Verify that the ONS 15216 EDFA2 input and output power are within the range shown in Table 3-1.
For example, if the total input power is between –27 dBm and –5 dBm, expect an output power between
–5 dBm and 17 dBm.
3-4
Table 3-1Gain Range
Gain Total Input Power (dBm)Total Output Power (dBm)
(dB)MinMaxMinMax
22–27–5–517
NoteUnless overridden by the user, the gain per channel is by default set to 22 dB by the ONS 15216 EDFA2.
Gain is fixed at 22 dB as long as total input power is less than or equal to –5 dBm. If your input power
is higher than –5 dBm, see the “Set Gain” section on page 4-5.
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3.5 Communications
The ONS 15216 EDFA2 can communicate in the following ways:
• Alarm Out relay contacts (RJ-45)
• Alarm LEDs
• Serial interface (EIA/TIA-232)
• Serial interface connected to a modem
• LAN interface (RJ-45)
3.5.1 Alarm Out Relay Interface (RJ-45)
The ONS 15216 EDFA2 Alarm Out (RJ-45) port reports alarm status for the following:
• Loss or degradation of electrical power
• Laser pump overheating or excessive pump current, output power, gain, and case temperature
• Loss or degradation of optical network
Communications
These alarms can be connected to a network operations center (NOC) network management system
(NMS) using the following methods:
• Cisco ONS 15454 miscellaneous discrete input
• Central Office alarm panel/system
Table 3-2 provides the ONS 15216 EDFA2 RJ-45 alarm out pinout and alarm definitions.
Table 3-2Alarm Pinout and Definitions (RJ-45)
RelayPinoutDescription
01 (0+)Loss of electrical power
2 (0–)
13 (1+)Laser pump temperature or bias is out of range; input power is out of
4 (1–)
25 (2+)Loss of optical input signal or input signal is below threshold (Minor)
6 (2–)
37 (3+)Loss of electrical power or out of range for Bus A or Bus B while in duplex
8 (3–)
tolerance for gain settings (Major)
mode
3.5.1.1 Alarm Relay Connection Procedure
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To set up alarm contacts, follow these steps:
Step 1Connect the RJ-45 to the stub-end cable using a #22 AWG solid wire.
NoteCable and connector are not provided.
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Communications
Step 2Connect the alarm cable to the alarm system contacts:
a. Cisco ONS 15454 medium-dependent interface (MDI) wire wrap pins
b. Central office (CO) alarm panel
Refer to Table 3-2 on page 3-5 for information concerning alarm contacts. Refer to Alarm LEDs, page
3-6 for information on the ONS 15216 EDFA2 alarm LEDs.
3.5.2 Alarm LEDs
The ONS 15216 EDFA2 has five LEDs:
• POWER
• FAI L
• LOS
• Ethernet socket (2)
Three of these LEDs, POWER, FAIL, and LOS, are located at the left side of the front panel of the
ONS 15216 EDFA2. The two Ethernet LEDs are located at the top left and right sides of the Ethernet
socket. When the module is powered on, an LED test is performed.
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3.5.2.1 POWER LED (Green)
The POWER LED is green. This LED functions as follows:
• On: –48 VDC power is within tolerance. (Power Bus A and B are powered normally.)
• Off: No –48 VDC power or power is out of tolerance from the internal power supply. (Power Bus A
and B are not powered.)
• Flashing: Power Bus A or B (in duplex mode) has failed or is out of tolerance, or Power Bus A (in
simplex mode) is out of tolerance.
In the off condition, the first pair of alarm relay contacts in the RJ-45 connector changes from a normally
open condition to a closed condition. The LED and alarm automatically reset when the condition clears.
(For additional alarm contact closure information, see the “Alarm Out Relay Interface (RJ-45)” section
on page 3-5.)
3.5.2.2 FAIL LED (Red)
The FAIL LED is red. This LED functions as follows:
• On: The laser pump bias, laser pump temperature, output power, gain, or case temperature is out of
tolerance. (A major internal failure has occurred.)
• Off: The laser pump bias or laser pump temperature is in the specified range (or no –48 VDC power
is present).
In the on condition, the second pair of alarm relay contacts in the RJ-45 connector changes from a
normally open to a closed condition. If an invalid input optical signal is applied to the
ONS 15216 EDFA2, the Fail LED is illuminated. The LED and alarm automatically reset when the
condition clears.
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3.5.2.3 LOS LED (Yellow)
The loss of signal (LOS) LED is yellow. This LED functions as follows:
• On: The optical input power to the ONS 15216 EDFA2 is below the loss of input threshold. (A LOS
threshold decision occurs.)
• Off: The optical input power is within the input threshold (or no –48 VDC power is present).
In the on condition, the third pair of alarm relay contacts in the RJ-45 connector changes from a normally
open condition to a closed condition. The LED and alarm automatically reset when the condition clears.
3.5.2.4 Ethernet Socket LEDs
Two LEDs are located at the top left and right sides of the Ethernet socket. These LEDs are both green.
These LEDs function as follows:
• If left Ethernet socket LED is on, the link is up.
• If right Ethernet socket LED is on or flashing, there is Ethernet traffic.
Communications
3.5.3 Serial Interface (EIA/TIA-232) Communication
This section describes communication with the ONS 15216 EDFA2 using a serial connection.
3.5.3.1 Required Equipment
Establishing a serial communications link with a ONS 15216 EDFA2 requires the equipment listed in
Table 3-3.
Table 3-3Equipment Checklist
HardwareComments
Laptop or computer running a Terminal
application.
EIA/TIA-232 cable with DB-9F/DB-9M
connectors wired as shown in Figure 3-8 on
page 3-14.
3.5.3.2 Serial Connection Procedure
To set up an EIA/TIA-232 link to the ONS 15216 EDFA2, use the following procedure. (The procedure
uses HyperTerminal and a connection via the COM1 port.)
User-provided. HyperTerminal can be found in the
Microsoft Windows Accessories menu.
Provides EIA/TIA-232 link to ONS 15216 EDFA2.
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Step 1Connect the DB-9F end of the EIA/TIA-232 data cable (straight cable, user provided) to the laptop COM
port.
Step 2Connect the DB-9M end of the EIA/TIA-232 data cable to the RS-232 (EIA/TIA-232) serial port
connection on the front panel of the ONS 15216 EDFA2.
Step 3Open HyperTerminal. (HyperTerminal can be found in the Microsoft Windows Accessories menu.)
Step 4Type Optical Amplifier, select an icon, and click OK.
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Step 5In the Connect To dialog box (Figure 3-2), click Direct to Com1 in the Connect using field. Click OK.
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Figure 3-2HyperTerminal Connect To Dialog Box
Step 6
Configure the Port Settings in the COM1 Properties dialog box as shown in Figure 3-3 on page 3-9. The
Port Settings must be configured as follows:
Configure the ASCII Setup window as shown in Figure 3-6. Click OK when done.
Figure 3-6HyperTerminal ASCII Setup Dialog Box
Click OK to return to the main HyperTerminal window.
The ONS 15216 EDFA2 login screen appears. The appearance depends on the shell the
ONS 15216 EDFA2 is set to (TL1 is the default shell). See “Log In via RS-232 (EIA/TIA-232) Port
Using HyperTerminal” section on page 4-1 for the login procedure in ASH shell and “Log In via RS-232
(EIA/TIA-232) Port Using HyperTerminal” section on page 8-1 for the login procedure in TL1 shell.
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3.5.4 Serial Interface Remote Communication via Modem
This section describes the procedure for establishing a remote dial-up connection to the
ONS 15216 EDFA2. ONS 15216 EDFA2 remote communication requires two US Robotics 56K Fax
modems set up to send data over a two-wire dial-up telephone line. (See Figure 3-7.)
This section assumes the use of the US Robotics 56K Fax modem V.90. Other modem types may require
different settings to establish a remote dial-up connection. The user should review their modem
documentation to ensure compatibility between US Robotics and other vendor modem types.
Figure 3-7Remote Communication
Network
Modem
Workstation
PSTN Dial up
Phone line
3.5.4.1 Remote Communication Component Requirements
Modem
Cisco ONS 15216
EDFA2
Communications
71458
Table 3-4 lists the components required to communicate remotely with a ONS 15216 EDFA2. Table 3- 4
is divided into two sections: Remote Site and Local Site. The Remote Site section lists components
needed at the site that contains the ONS 15216 EDFA2 and the Local Site section lists components
needed at the site where the user is located.
Table 3-4Communication Component List
ComponentNotes
Remote Site
1 ONS 15216 EDFA2
1 US Robotics 56K Fax modem V.90The modem to ONS 15216 EDFA2
connection must be set for 19200 baud.
The modem to modem connection must
be set for 14400 baud.
1 10-ft DB-25M to DB-9F cableFor connection between
ONS 15216 EDFA2 and modem.
1 RJ-11 to RJ-11 telephone cable For connection between the modem and
PSTN dial-up telephone line
1 public switched telephone network
(PSTN) dial-up telephone line
Local Site
1 PC running HyperTerminal
US Robotics 56K Fax modem V.90The modem to ONS 15216 EDFA2
connection must be set for 19200 baud.
The modem to modem connection must
be set for 14400 baud.
1 10-ft DB-25M to DB-9F For connection between PC COM port
and modem.
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Table 3-4Communication Component List
ComponentNotes
1 RJ-11 to RJ-11 telephone cable For connection between the modem and
1 PSTN dial-up telephone line
3.5.4.2 Modem Signals
The only signals required for communication are TXD (transmit), RXD (receive), and SIGNAL
GROUND. By adjusting the modem manufacturer settings, the other signals can be ignored.
3.5.4.3 Modem Power Up
The modem has a DIP switch that overrides certain NVRAM settings during a power up. For consistent
operation throughout the power cycles, the DIP switches must be set as displayed in Table 3-5.
Table 3-5Modem DIP Switch Setting
Chapter 3 Installation
PSTN dial-up telephone line.
DIP Switch Setting Up (U) or Down (D)Description
1DData terminal ready override
2U Verbal result codes
3USuppress result codes
4DNo echo, offline commands
5UAuto-answer on first ring, or higher if
6UCarrier detect normal
7ULoad NVRAM defaults
8DSmart mode
3.5.4.4 Modem Configuration Settings
After configuring the DIP switch settings, each modem configuration must then be set using a terminal
program such as Microsoft Windows HyperTerminal.
Connect the modem to the PC serial port using a DB-25M to DB-9F modem cable as per the
manufacturer recommendations.
Set the terminal communication parameters as follows:
• 19,200 baud
• No parity
specified in NVRAM
3-12
• 8 bits per character
• 1 stop bit, and no flow control
Table 3-6 on page 3-13 gives a brief description of the modem settings that are stored in NVRAM. These
settings survive power supply interruptions. Use these settings to configure each modem.
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Table 3-6Modem Settings
Modem SettingDescription
b0ITU-T answer sequence
e0Echo off
f1Local echo off
m1Speaker on until CONNECT
q1Quiet mode; no results code
v1Verbal codes
x1Select result codes displayed
y0Use profile 0 setting in NVRAM
&a3Enable extra result codes
&b1Fixed DTE speed
&c1Normal CD operation
&d0DTR override
&g0No guard tone, U.S. and Canada
&h0Flow control disabled
&i0Software flow control disabled
&k0Data compression disabled
&m5ARQ mode
&n8Fix highest connect speed to 14,400 bps
&p1Pulse dialing option
&r1Ignore Request to Send (RTS)
&s1Modem controls Data Set Ready (DSR)
&t5Prohibits remote digital loopback
&u8Fix lowest connect speed to 14,400 bps
&y1Break handling; destructive/expedited
&w0Store configuration 0
s0=1Auto-answer on first ring
s2=128Disable escape to command mode
3.5.4.5 Setting and Saving Modem Settings
To set and save modem settings, enter the following command to the terminal program and to each
modem:
NoteModem communication is not necessary unless dial-up remote communication is desired.
3.5.4.6 PC Connection via Modem
The ONS 15216 EDFA2 and modem are connected through the RS-232 (EIA/TIA-232) port using a
DB-9 connector. The modem, PC, and ONS 15216 EDFA2 should be physically set up as displayed in
Figure 3-8. Use Figure 3-8 to properly connect the ONS 15216 EDFA2 to the modem.
Figure 3-8DB-9 Pinout for RS-232 (EIA/TIA-232) Port
GNDRXD TXD
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5
432
98
76
CTSRTS
Using the terminal program from the PC, enter the ATD T command with the appropriate telephone
number to call the remote ONS 15216 EDFA2 modem. After the modems synchronize, log into the
ONS 15216 EDFA2 using the correct user name and password. Refer to Chapter 5, “SNMP MIB
Installation and Configuration,” Chapter 6, “ASH Commands,” and Chapter 9, “TL1 Commands,” for
additional information on commands.
3.5.5 LAN Interface (Ethernet)
You can connect to the ONS 15216 EDFA2 to an Ethernet LAN for remote access.
NoteBefore communicating and managing the ONS 15216 EDFA2 via the Ethernet port, the user must first
enter an IP address. To set an IP address, see Chapter 4, “Provisioning Using ASH and SNMP” or
Chapter 8, “Provisioning Using TL1.”
Telnet is an application that allows remote management using IP over the Ethernet LAN. The following
types of commands can be issued through a Telnet session:
Use the following procedure to configure the module to accept SNMP, CLI, and TL1 commands via its
RJ-45 LAN port:
Step 1The ONS 15216 EDFA2 IP address is factory set at 0.0.0.0. The IP address must be set before the
ONS 15216 EDFA2 can be accessed via the Ethernet port. See “Set IP Address” section on page 4-3.
Step 2Connect ONS 15216 EDFA2 to the network via the module LAN port.
Use a straight-through Cat5 Ethernet cable with RJ-45 connectors to connect to a LAN, or use a
cross-over cable if connecting directly to a PC.
Step 3At a terminal or workstation, open the Telnet application.
NoteTo send CLI and TL1 commands over IP, a Telnet client is required. For SNMP management over
IP, a generic SNMP manager is required.
Step 4Connect to the ONS 15216 EDFA2 using the module’s IP address.
If you do not specify a port number, the ONS 15216 EDFA2 responds in the shell that the
ONS 15216 EDFA2 is set to (TL1 is the default shell). Specify port number 8023 to access through the
ASH shell or port number 3083 to access through the TL1 shell.
The ONS 15216 EDFA2 login screen appears. See “Log In via RS-232 (EIA/TIA-232) Port Using
HyperTerminal” section on page 4-1 for the login procedure in ASH shell and “Log In via RS-232
(EIA/TIA-232) Port Using HyperTerminal” section on page 8-1 for the login procedure in TL1 shell.
Communications
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CHAPTER
4
Provisioning Using ASH and SNMP
This chapter discusses the provisioning procedures for the Cisco ONS 15216 EDFA2 using SNMP and
a proprietary command line interface named the ASH shell. See Chapter 8, “Provisioning Using TL1”
for provisioning information using TL1 commands in the TL1 shell.
The provisioning procedure for the ONS 15216 EDFA2 in the ASH shell is as follows:
1. Log In via RS-232 (EIA/TIA-232) Port Using HyperTerminal, page 4-1
2. Set IP Address, page 4-3
3. Log In via LAN Port Using Telnet (Optional), page 4-3
4. Set Date and Time, page 4-4
5. Set Power Bus Mode (Simplex or Duplex), page 4-4
6. Verify Amplifier Operational Status, page 4-4
7. Set Gain, page 4-5
8. Set Alarm Thresholds, page 4-5
9. Set Password, page 4-10
10. Add Users, page 4-11
11. Save Changes, page 4-11
12. Log Off, page 4-12
13. Back Up System Configuration, page 4-12
14. Restore System Configuration, page 4-13
15. Recover Default Password, page 4-14
The following sections describe these steps in detail.
4.1 Log In via RS-232 (EIA/TIA-232) Port Using HyperTerminal
Logging in through the RS-232 (EIA/TIA-232) port is required to set the ONS 15216 EDFA2 IP address
before there can be access via the LAN port. (See “Log In via LAN Port Using Telnet (Optional)” section
on page 4-3.)
Step 1Connect to the RS-232 (EIA/TIA-232) port on the front panel. See “Serial Connection Procedure”
section on page 3-7 for line connection and HyperTerminal setup instructions.
Step 2Open HyperTerminal. (HyperTerminal can be found in the Microsoft Windows Accessories menu.)
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Step 3If you see the login window shown in Example 4-1 on page 4-2, skip to Step 4.
By default the ONS 15216 EDFA2 is in TL1 shell, so this step may be required to proceed in ASH shell.
When in TL1 shell, the screen opens to a simple prompt (
ASH shell, log in using the procedure in “Log In via RS-232 (EIA/TIA-232) Port Using HyperTerminal”
section on page 8-1, and then enter the following command at the sid/tid name prompt:
The default user name and password is CISCO15 with no password (press Enter).
NoteFor security reasons, it is recommended to change the password from its default value. See Set Password,
page 4-10 or Set Password, page 8-10.
Step 6Press Enter when [Login] becomes highlighted. Example 4-2 displays the login response.
Example 4-2ASH Shell Login Response
Welcome to ONS15216 EDFA2 Console (v2.3.0)
4-2
ash:hostname:ONS15216 EDFA2>
An EIA/TIA-232 link to the ONS 15216 EDFA2 is established. The user can now provision the
ONS 15216 EDFA2.
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4.2 Set IP Address
Before connecting the ONS 15216 EDFA2 to a LAN, it is mandatory to set the ONS 15216 EDFA2 IP
address through a local serial communication interface using the RS-232 (EIA/TIA-232) port on the
front of the module.
Step 1If you do not know the ONS 15216 EDFA2’s IP address, subnet mask, gateway address, or host name,
contact your network administrator.
Step 2At the command prompt, enter the snmp row set local cerent15216EdfaSromIpMgmtGroup
command (displayed in Example 4-3) and press Enter.
Example 4-3Setting IP Address, Subnet Mask, Gateway Address, and Host Name
ash:hostname:ONS15216 EDFA2> snmp row set local cerent15216EdfaSromIpMgmtGroup
Because row set is being used in this command, the user is prompted row by row to enter the IP address,
the subnet mask, the gateway address, and the host name (community ID).
Step 3The changes must be saved prior to terminating the session. See “Save Changes” section on page 4-11.
Step 4The system must be rebooted to make the IP address active. Use the processor reset command. (See
“processor reset Command” section on page 6-12.)
4.3 Log In via LAN Port Using Telnet (Optional)
Provisioning of the ONS 15216 EDFA2 can be accomplished entirely through the RS-232
(EIA/TIA-232) port using CLI commands. After an IP address is assigned, it may be easier to provision
the ONS 15216 EDFA2 using Telnet or an SNMP manager. A Telnet client is needed for CLI commands
over IP. A generic SNMP manager is required for SNMP management over IP. After connecting the
ONS 15216 EDFA2 to the network through its RJ-45 LAN port (see “LAN Interface (Ethernet)” section
on page 3-14), the user can configure the module to accept SNMP and CLI commands via Telnet using
the following procedure:
Step 1Connect to the LAN port on the front panel. See “LAN Connection Procedure” section on page 3-15.
Step 2Click the Microsoft Windows Start menu and select Run.
Step 3In the text field, type the following:
telnet <ONS 15216 EDFA2 IP address> 8023
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Specifying port 8023 ensures login through the ASH shell. If no port is specified, the
ONS 15216 EDFA2 responds in the shell that the ONS 15216 EDFA2 is set to. (TL1 is the default shell.)
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Step 4Log in again using Step 4 through Step 6 in “Log In via RS-232 (EIA/TIA-232) Port Using
HyperTerminal” section on page 4-1.
You are now connected to the ONS 15216 EDFA2 via Telnet.
4.4 Set Date and Time
Use the snmp attribute set local cerent15216EdfaRtcDateAndTimeLocalString command to set the
date, time, and time zone. Entries must follow this format: “yyyy-m-d,h:m:s.s +h:m”. Following the
space, the time zone is set as +/– hours from Greenwich Mean Time (GMT) (also designated as universal
coordinated time (UTC)) followed by a colon and minutes ahead for daylight savings. For example,
Pacific Daylight Time would be –8:60 and Greenwich Mean Time would be +0:0. See Example 4-4.
Example 4-4Setting the Date and Time
ash:hostname:ONS15216 EDFA2> snmp attribute set local cerent15216EdfaRtcDateAndTimeLocalString
"2002-6-30,14:8:30.0 -8:60"
Chapter 4 Provisioning Using ASH and SNMP
4.5 Set Power Bus Mode (Simplex or Duplex)
The ONS 15216 EDFA2 allows users to set a simplex (one power source–Bus A) or duplex (redundant
power source–Bus A and Bus B) Power Bus mode. Use the snmp attribute set local cerent15216EdfaPowerBusMode command to set the desired Power Bus mode. The default mode is
duplex. See Example 4-5.
Example 4-5Setting the Power Bus Mode
ash:hostname:ONS15216 EDFA2> snmp attribute set local cerent15216EdfaPowerBusMode simplex
4.6 Verify Amplifier Operational Status
To ensure that the amplifier is working correctly on the optical level, you must verify the amplifier
operational status. Use the snmp table display local cerent15216EdfaOverallStatusGroup command
to verify amplifier operational status. Example 4-6 displays the output of this command.
Example 4-6Verifying the Amplifier Operations Status
ash:hostname:ONS15216 EDFA2> snmp table display local cerent15216EdfaOverallStatusGroup
The input power (signal) should be consistent with the input power measured during the optical
connection procedure. See the “Optical Connection Procedure” section on page 3-3 for more
information. The output power value should be 22 dB greater than the input, assuming that the default
gain setting is 22 dB.
NoteAn input power higher than –5 dBm will return a Gain Out of Range alarm that can be cleared by
correctly setting the gain value. For more information, refer to Table 2-2 on page 2-2.
4.7 Set Gain
To ensure that the ONS 15216 EDFA2 output signal is received by the transceiver in the network
element, it is important that the gain is set correctly.
The desired output power per channel is dependent on the number of channels traversed in the amplifier.
The user sets the gain of the amplifier depending on the input power (signal) level, the network
application, and the required receiver specifications necessary for error-free operation. Gain range is
provided in Table 3-1 on page 3-4.
Set Gain
To set the amplifier gain, enter the snmp attribute set local cerent15216EdfaConstGainOverallGain gainvalue command, where gainvalue is the desired gain multiplied by ten. For example, if the desired
gain is 20 dB, the gainvalue would be set to 200. Example 4-7 shows the command used to set the gain.
Example 4-7Setting the Gain
ash:hostname:ONS15216 EDFA2> snmp attribute set local cerent15216EdfaConstGainOverallGain 200
NotePrior to changing or implementing gain changes, consult with the Cisco TAC to ensure proper network
operation.
4.8 Set Alarm Thresholds
Alarm thresholds are set so that the network operator can be notified when valid alarms occur via the
RJ-45 ALARM OUT and RJ-45 LAN ports on the front panel of the ONS 15216 EDFA2. (See Figure 4-1
on page 4-6.)
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Figure 4-1ONS 15216 EDFA2 Front Panel
Fiber
Fiber
input
port
output
port
Status
LEDs
Alarm
out
-48V B
RET B
-48V B
R B
71176
-48V A
R A
-48V A
RET A
Fiber
output
monitor
POWER
FAIL
LOS
Power
level
warning
CISCO ONS 15216
(EIA/TIA-232)
RS-232
RS-232
ALARM OUT
LAN
LAN port
LAN LEDs
port
Alarms are reported for the following conditions:
• Loss or degradation of electrical power
• Laser pump overheating, excessive pump current
• Loss or degradation of optical input
Alarms can be connected to a network operations center (NOC) network management system (NMS) via
a network element miscellaneous discrete input and/or office alarm panel/system.
For a full description of alarm threshold command attributes, refer to Chapter 5, “SNMP MIB
Installation and Configuration” or Chapter 6, “ASH Commands.”
To display the alarm thresholds, use the snmp table display local cerent15216EdfaCfgGroup
command (Example 4-8). This command returns the current alarm threshold default values.
Example 4-8Displaying the Alarm Thresholds
ash:hostname:ONS15216 EDFA2> snmp table display local cerent15216EdfaCfgGroup
To set the alarm thresholds, use the snmp row set local cerent15216EdfaCfgGroup command. After
this command is entered, the user is prompted to modify each attribute, row by row, until all attributes
are set. Alarm threshold attributes are described in Table 4-1 on page 4-7.
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Table 4-1Alarm Threshold Attribute Definitions
Set Alarm Thresholds
Attribute
cerent15216Edfa
CfgSaved
cerent15216Edfa
LpoutSetpoint
cerent15216Edfa
LpoutDeviation
cerent15216Edfa
LpoutHysteresis
cerent15216Edfa
LOSThreshold
Variable
DefinitionSyntax
Configurati
True Value Read-onlyIndicates whether the current
on saved
status
Loss of
output
power
Integer
(0 to 1000,
0 default)
setpoint
Loss of
output
power
deviation
Loss of
output
power
hysteresis
Loss of
signal
(input
power)
threshold
Integer
(0 to 1000,
200
default)
Integer
(0 to 1000,
100
default)
Integer
(–3100 to
–1500,
–3000
default)
Maximum
AccessDescription
configuration has been saved. The value
can be true or false. If false, the
configuration is not saved.
Read-onlyCan be disregarded when operating
amplifier in Constant Gain Temperature
Compensated mode (manufacturer
default) and Constant Pump Current
mode. Setpoint object is only valid when
amplifier is used in Constant Output
Power and Idle modes.
Read-write Can be disregarded when operating
amplifier in manufacturer default
Constant Gain Temperature
Compensated mode. Deviation object is
only valid when amplifier is used in
Constant Output Power and Idle modes.
Read-write Can be disregarded when operating
amplifier in manufacturer default
Constant Gain Temperature
Compensated mode. Hysteresis object is
only valid when amplifier is used in
Constant Output Power and Idle modes.
Read-write Alarm notifies operations personnel if
the optical input signal of the
ONS 15216 EDFA2 drops below a level
that impacts proper operation of optical
network. Set this attribute at a value that
is appropriate for the intended
application so that the alarm condition is
meaningful. Consult with the Cisco TAC
to determine the threshold value for your
application. As a guideline, Cisco
recommends setting the threshold value
at 3 dBm below the current input power
level of the amplifier. Valid entries are
between –3100 and –1500 in dBm times
100. For example, if the total input power
of the amplifier is –24 dBm and the loss
of input power threshold required is –27
dBm, the loss of input power alarm
threshold is –2700.
Read-write Used to set the amount the input signal
must increase above the LOS Threshold
level before the alarm is cleared. This
attribute, in conjunction with the loss of
input signal alarm threshold, enables
efficient clearing of alarms. Set this
attribute at a value that is appropriate for
the application so that the alarm
condition will clear when input is stable.
Consult with the Cisco TAC to determine
the correct value for your application. As
a guideline, Cisco recommends setting
the value 1 dB above the LOS Threshold
value. With this setting, the module will
clear the alarm if it detects a signal level
of 1 dB above the current LOS Threshold
value. Valid entries are between 0 and
1000 and are in dB times 100. For
example, if the hysteresis required is 1
dB, the power alarm hysteresis is 100.
Read-write Alarm notifies operations personnel if
the case temperature of the
ONS 15216 EDFA2 drops below a level
that impacts proper operation of the
optical network. The minimum case
temperature should be set at a value that
is appropriate for the intended
application and within product
specifications. Consult with the Cisco
TAC to determine the correct value for
your application. As a guideline, Cisco
recommends that minimum case
temperature be set at 1
are between –10 and 10
Read-write Used to set the amount that the case
temperature of the module must rise
above the minimum case temperature
alarm level before the alarm is cleared.
Set the hysteresis at a value that is
appropriate for the application so that the
alarm condition clears when the input is
stable. Consult with the Cisco TAC to
determine the correct value for your
application. As a guideline, Cisco
recommends that the hysteresis value be
set at 1
the case temperature of the
ONS 15216 EDFA2 is at a level that may
impact proper operation of the optical
network. Set the maximum case
temperature at a value that is appropriate
for intended application and within
product specifications. Consult with the
Cisco TAC to determine the correct value
for your application. As a guideline,
Cisco recommends that maximum case
temperature value be set at 50
entries are between 20 and 70
Read-write Used to set the amount that the case
temperature of module must drop below
the maximum case temperature alarm
level before the alarm is cleared. Set the
hysteresis at a value that is appropriate
for the application so that the alarm
condition clears when the input is stable.
Consult with the Cisco TAC to determine
the correct value for your application. As
a guideline, Cisco recommends setting
the value at 1
between 0 and 10
0 disables this option.
voltage. The default minimum power bus
voltage is set at –40 VDC. Valid entries
are between 350 and 700 and are in
negative volts times 10. For example, if
the voltage required is –40 VDC, the
power bus setting is 400.
The power bus threshold has a 1.0V
tolerance and a 1.0V hysteresis. There is
a potential ±1.5V inaccuracy in the
ONS 15216 EDFA2 voltage
measurement. If the minimum threshold
is configured at 400 (-40 VDC), the
alarm will not raise until the voltage
measures below -39 VDC and will not
clear until the voltage measures above
-41 VDC.
Read-write Maximum allowable power bus DC
voltage. The default maximum power bus
voltage is set at –57 VDC. Valid entries
are between 350 and 700 and are in
negative volts times 10. For example, if
the voltage required is –57 VDC, the
power bus setting is 570.
4.9 Set Password
To restrict access to the ONS 15216 EDFA2, use the user passwd set command to change the default
user password. The password must be a string of up to 10 characters, where at least 2 are non-alphabetic
characters and at least 1 is a special character. With the exception of the administrator access level
(read_write_admin), users can only modify their own passwords. For additional information on user
levels, refer to Table 6-1 on page 6-1. Example 4-9 displays the command.
Example 4-9Changing Current User’s Password
ash:hostname:ONS15216 EDFA2> user passwd set
The power bus threshold has a 1.0V
tolerance and a 1.0V hysteresis. There is
a potential ±1.5V inaccuracy in the
ONS 15216 EDFA2 voltage
measurement. If the maximum threshold
is configured at 570 (-57 VDC), the
alarm will not raise until the voltage
measures above -58 VDC and will not
clear until the voltage measures below
-56 VDC.
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Password =
****
New Password =
******
Confirm New Password =
******
NoteThe default user name for the administrator level is CISCO15 with no default password. To start a
session for this user name, press Enter.
4.10 Add Users
Use the user entry create command to add new users to the ONS 15216 EDFA2. The syntax is to enter
the command followed by the user name and then the access level (read, read_write, read_write_admin)
as shown in Example 4-10. The ONS 15216 EDFA2 responds with a request for the password.
Passwords must be an ASCII string of up to 10 characters, where at least 2 are non-alphabetic characters with
at least one special character. Special characters are +, #, and % (defined in Telcordia GR-831-CORE).
Add Users
Example 4-10 Adding a New User
ash:hostname:ONS15216 EDFA2> user entry create janedoe read_write
New Password =
*********
Confirm New Password =
*********
4.11 Save Changes
To ensure that the provisioning changes are set, you must save your changes prior to terminating the
session. To save changes, use the snmp attribute set local cerent15216EdfaOpSaveConfigperform
command (Example 4-11).
Example 4-11 Saving Changes
ash:hostname:ONS15216 EDFA2> snmp attribute set local cerent15216EdfaOpSaveConfig perform
Most SNMP configuration attributes require the above save command before terminating the session
(does not apply to TL1 shell). The exceptions to this save requirement (the attributes that are
automatically saved) are shown below:
• cerent15216EdfaPowerBusMode
• cerent15216EdfaPowerBusDCVoltageMin
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• cerent15216EdfaPowerBusDCVoltageMax
• cerent15216EdfaPumpCfgControlMode and the corresponding pump control value
• cerent15216EdfaConstGainOverallGain
• cerent15216EdfaVariableGainPreAttenuation
• SromIpMgmtGroup attributes:
–
cerent15216EdfaSromIpMgmtEnetAddress
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–
cerent15216EdfaSromIpMgmtEnetSubNetMask
–
cerent15216EdfaSromIpMgmtDefaultRouterAddress
–
cerent15216EdfaSromIpMgmtHostName
• BootTable attributes:
–
cerent15216EdfaBootModuleIndex
–
cerent15216EdfaBootEntryIndex
–
cerent15216EdfaBootType
–
cerent15216EdfaBootIpAddress
–
cerent15216EdfaBootFileName
At the end of a session, the user must log off of the ONS 15216 EDFA2. To log off, use the logoff
command. This is shown in Example 4-12.
Example 4-12 Logging Off
ash:hostname:ONS15216 EDFA2> logoff
4.13 Back Up System Configuration
The configuration information for the ONS 15216 EDFA2 can be saved in a file for later use or to
configure other ONS 15216 EDFA2 units. This file contains manufacturing information about the unit
that is being backed up (such as part number and serial number), setup information for the unit (such as
IP address and host name), all configuration information (such as alarm thresholds and pump mode), and
the user database.
The backup file is saved with cyclic redundancy code (CRC) to ensure data integrity, and the user names,
passwords, and other system settings are encrypted for security. The file header, which identifies the
node name, IP address, and software version, is text readable. Only the configuration information and
user database are copied back to the ONS 15216 EDFA2 during a restore.
Step 1Back up the system configuration to a file on the FFS.
ash:hostname:ONS15216 EDFA2> backup system filename
The system responds with progress information:
Trying to Backup the system configuration to file filename...
Backup SNMP Data...
DONE!...
Backup NON-SNMP Config...
DONE!...
Backup USER/PASSWD Accts...
DONE!...
CRC = 6cce1bd9
Backup DONE!
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Step 2If desired, use FTP to copy the file to a remote server. See “Example of FTP to a Remote Server” section
on page 7-2.
4.14 Restore System Configuration
The configuration information for the ONS 15216 EDFA2 can be restored form a file. During this
process, all configuration information (such as alarm thresholds and pump mode) and the user database
from the file are replaced in the ONS 15216 EDFA2 memory and FFS.
Before the restore begins, a cyclic redundancy code (CRC) check is performed to ensure data integrity.
Step 1If desired, use FTP to copy a system configuration file from a remote server to the ONS 15216 EDFA2
FFS. See “Example of FTP from a Remote Server” section on page 7-1.
Step 2Restore the system configuration from the file on the FFS.
ash:hostname:ONS15216 EDFA2> restore system filename
Restore System Configuration
The system responds with progress information:
Restoring the system configuration from file filename...
CRC Check OK
Restore SNMP Configuration...
...............
DONE!...
Restore NON SNMP Configuration...
user inactivity modify read_write_admin 15
user inactivity modify read_write 30
user inactivity modify read 60
shell type modify ash
tl1 sid modify foo
manufacturer keep_alive modify -idle 1 -interval 75 -retries 9
snmp attribute set local cerent15216EdfaSromIpMgmtHostName "newhostname"
DONE!...
Restore USER INFO...
DONE!...
Restore DONE!
Step 3Save the changes.
ash:hostname:ONS15216 EDFA2> snmp attribute set local cerent15216EdfaOpSaveConfig perform
Step 4Reboot the ONS 15216 EDFA2.
ash:hostname:ONS15216 EDFA2> processor reset
After the processor reboots, user names and passwords from the new user database must be used for
access.
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4.15 Recover Default Password
If the root password for CISCO15 is lost, there is a procedure to reset it to regain full administrative
control of the ONS 15216 EDFA2. The user must be connected to the ONS 15216 EDFA2 by serial
communication, perform a hard power reset, and then performs a series of commands within 60 seconds
of rebooting, according to the following procedure. This procedure resets the default user password only;
no other settings are affected.
Chapter 4 Provisioning Using ASH and SNMP
Warning
NoteIf the ONS 15216 EDFA2 firmware is not version 2.3.14 or greater, the CISCO15 user resets to
The ONS 15216 EDFA2 ceases its optical amplification function when power is off during this process.
Traffic should be rerouted before this procedure begins.
read_write access level, not read_write_admin, which has full administrative control. Contact Cisco
TAC for assistance.
Step 1Connect to the RS-232 (EIA/TIA-232) port.
Step 2Open HyperTerminal. (HyperTerminal can be found in the Microsoft Windows Accessories menu.)
Step 3Perform hard power reset of the ONS 15216 EDFA2 (disconnect and reconnect power).
Step 4While the dots are present in the HyperTerminal window during the reboot process, enter Ctrl C on the
keyboard.
The ONS 15216 EDFA2 should boot from the firmware image. The prompt is %.
Step 5At the hostname prompt, enter the following command (must be done within 60 seconds of rebooting):
hostname:edfaboot% user passwd set CISCO15 default
Step 6At the hostname prompt, enter the following command:
hostname:edfaboot% login CISCO15
Password =
<enter>
4-14
Step 7At the hostname prompt, enter the following command:
hostname:edfaboot% processor reset
After the processor reset, the default CISCO15 login password will be the default (the Enter key).
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SNMP MIB Installation and Configuration
This chapter explains how to read and understand SNMP MIB as it relates to the Cisco
ONS 15216 EDFA2. This chapter is a reference of all ONS 15216 EDFA2 SNMP commands that are
used in a network management system (NMS). For provisioning the ONS 15216 EDFA2, see Chapter 4,
“Provisioning Using ASH and SNMP”.
5.1 SNMP Overview
Simple Network Management Protocol (SNMP) is an application-layer communication protocol that
allows network devices to retrieve and modify the value of management information, as well as provide
event notification to a NMS.
The ONS 15216 EDFA2 SNMP implementation uses proprietary and standard Internet Engineering Task
Force (IETF) MIBs to convey inventory, fault, and performance management information.
SNMP allows limited management of the ONS 15216 EDFA2 by a generic, third-party SNMP manager
(for example, HP OpenView Network Node manager [NNM] or Open Systems Interconnection [OSI]
NetExpert).
CHAPTER
5
The ONS 15216 EDFA2 supports SNMP Version 1 (SNMPv1) and SNMP Version 2c (SNMPv2c)
protocols.
5.1.1 SNMP Components
An SNMP-managed network consists of three primary components:
• Managed devices
• Agents
• Management systems
A managed device is a network node that contains an SNMP agent and resides on an SNMP-managed
network. Managed devices collect and store management information and use SNMP to make this
information available to management systems that use SNMP. Managed devices include routers, access
servers, switches, bridges, hubs, computer hosts, and network elements such as the ONS 15216 EDFA2.
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5.1.2 ONS 15216 EDFA2 SNMP Elements
The following three SNMP elements are used with the ONS 15216 EDFA2:
• SNMP agent
• SNMP MIB
• SNMP manager
The SNMP elements are shown in Figure 5-1.
Figure 5-1SNMP Elements
Management
Entity
Chapter 5 SNMP MIB Installation and Configuration
5.1.2.1 SNMP Agent
An agent is an entity that assumes an operation role to receive, process, and respond to requests, as well
as generated event reports. The SNMP agent gathers data from the MIB, which is the repository for
device parameter and network data. To respond to requests, the agent must have network management
information access. To generate reports, an agent must be notified of internal events.
Agent
Management
Database
NMS
Agent
Management
Database
Managed Devices
Agent
Management
Database
33930
5-2
Cisco provides both an SNMP agent (installed on the ONS 15216 EDFA2) and SNMP MIB to monitor
the ONS 15216 EDFA2. The SNMP agent software and MIB are pre-installed on each module.
Figure 5-2 on page 5-3 shows the relationship between the SNMP agent and the MIB.
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Figure 5-2SNMP Agent and MIB
SNMP Overview
NMS
SNMP Manager
5.1.2.2 SNMP MIB
The SNMP MIBs (CERENT-15216-EDFA-MIB.mib and CERENT-GLOBAL-REGISTRY.mib) are files
written in ASN.1 syntax. The CERENT-15216-EDFA-MIB.mib specifies what ONS 15216 EDFA2
information needs to be controlled and monitored. This MIB is pre-installed on the SNMP agent and is
accessible via the CLI.
The CERENT-15216-EDFA-MIB.mib and other MIBs can also be installed on a third-party SNMP
manager located at a network management center. The SNMP manager at the network management
center or the SNMP manager, accessible via the CLI, (see SNMP Manager) uses the SNMP MIBs to
communicate with the SNMP agent.
5.1.2.3 SNMP Manager
The ONS 15216 EDFA2 comes with a pre-installed SNMP manager accessible via the CLI. This SNMP
manager can be accessed and used to communicate with the SNMP agent that is also pre-installed on
each ONS 15216 EDFA2. This manual displays examples of issuing SNMP commands to the amplifier
using the built-in SNMP manager.
SNMP managers from third-party vendors running on a separate computer located at a network
management center are often used to manage network elements. If a third-party SNMP manager is used,
it must be able to communicate with the SNMP agent pre-installed on the ONS 15216 EDFA2.
If a third-party SNMP manager is used, it is assumed that the SNMP manager is pre-installed prior to
the SNMP MIB installation. Each vendor-specific SNMP manager has an unique set of instructions for
SNMP MIB installation. For directions on loading the SNMP MIBs, refer to SNMP manager
documentation.
Cisco does not provide or recommend a standard third-party SNMP manager.
5.1.3 SNMP MIBs and Message Types
SNMP operations can be quite powerful. A manager can retrieve or modify the value of management
information accessible by an agent, an agent can report an event to a manager, and the manager can
inform another manager of the value of management information on an agent. Using retrieval and
modification operations, a manager can cause an agent to perform an action or execute a command. The
manager can also create new and delete existing instances of management information.
A MIB is a hierarchically-organized collection of information. Network management protocols, such as
SNMP, gain access to these MIBs. MIBs consist of managed objects and are identified by object
identifiers (OID).
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The ONS 15216 EDFA2 SNMP agent communicates with an SNMP management application (a
third-party application or the built-in SNMP manager) using SNMP messages. Table 5- 1 describes
SNMP operation types.
Table 5-1SNMP Operation Types
OperationDescription
get-requestRetrieves a value from a specific variable.
get-next-requestRetrieves the value following the named variable; this operation is often used
to retrieve variables in a table. With this operation, an SNMP agent does not
need to know the exact variable name. The SNMP manager searches
sequentially to find the needed variable in the MIB.
get-responseThe reply to a get-request, get-next-request, get-bulk-request, or set-request
sent by an NMS.
get-bulk-requestSimilar to a get-next-request, but this operation fills the get-response with up
to the max-repetition number of get-next interactions.
trapAn unsolicited message sent by an SNMP agent to an SNMP manager
indicating that an event has occurred.
set-requestSets a value of a specific variable.
5.1.4 Command Syntax Using the SNMP Agent
Although Cisco has its own separate SNMP manager (Cisco Transport Manager [CTM]), management
of the ONS 15216 EDFA2 is also possible using the built-in SNMP manager via the command line in the
ASH shell, as described in SNMP Commands, page 6-15. The example commands and command syntax
described in this manual are based on using the built-in ONS 15216 EDFA2 SNMP manager through the
ASH shell CLI.
Commands can be issued via Telnet over a LAN or directly through the RS-232 (EIA/TIA-232) port on
the module. (See .) After setting up a connection to the module and entering a password and user name,
the following prompt appears:
ash:hostname:ONS15216 EDFA2>
To communicate with the module using SNMP, the command must begin with “snmp”.
NoteTo view a list of possible SNMP operations, enter “snmp” followed by a space and press the Tab key.
Use these commands to set up community strings (Enabling SNMP Remote Management Community
Strings, page 5-5) and traps (Setting Up Traps, page 5-21).
5.2 Enabling SNMP Remote Management Community Strings
SNMP communities are groupings of workstations and servers (or gateways) that can manage the
ONS 15216 EDFA2. NMSs use SNMP communities to enforce security. SNMP enforces security
through password-like community strings. Access to the SNMP agent and the ONS 15216 EDFA2 can
be limited by both IP address and community string.
The CLI SNMP manager (local SNMP manager) must be used to setup remote management (via a Telnet
connection or terminal server). A third-party, vendor-specific SNMP manager cannot be used to setup
remote management.
The process for setting up community entries consists of:
• Creating a View, page 5-6
• Creating a Community Entry, page 5-7
The ONS 15216 EDFA2 has the two default community strings listed in Tab le 5 -2 .
Table 5-2Default Community Strings
Community StringDefault Privileges
public read operations for all MIBs
privateread and write operations for all MIBs
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The privileges assigned to the default strings can be modified or new communities with custom
privileges can be created.
5.2.1 Creating a View
The following command describes how to set a view entry. A view defines and restricts the MIB
attributes that a particular community can access. The view entry and the community entry are set to
factory defaults. Users should consult with the Cisco TAC before modifying these settings.
5.2.1.1 Set View Entry
Commandsnmp row set local cerent15216EdfaViewEntry
Syntax Descriptionsnmp row set local cerent15216EdfaViewEntry view_index_# subtree
To create a community entry, a view must first be created. A MIB view can restrict the MIBs that a
particular community can access. To create a view, type the command. view_index_# is an integer (1 to
2048) assigned to this view entry and subtree is the MIB subtree to which this view applies. Multiple
view entries can be used for each view index.
This
command creates a new row in the ViewEntry table. The SNMP manager prompts the user for each
attribute.
To display a list of possible values, press the Spacebar followed by the Tab key. (See Example 5-3.)
Example 5-3cerent15216EdfaViewEntry Set Command
ash:hostname:ONS15216 EDFA2> snmp row set local cerent15216EdfaViewEntry 1 cerent
Access to the ONS 15216 EDFA2 can be restricted by IP address or community string using this
command.
Table 5-3 on page 5-7 describes the command and MIB view prompts.
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Table 5-3Creating a View
Data PromptCommandDescription
cerent15216EdfaViewIndexsnmp row set local
cerent15216EdfaViewSubTreeSub-Tree Object IdentifierSub-Tree Object Identifier: An
cerent15216EdfaViewMask‘0’HA bit mask that identifies objects in
cerent15216EdfaViewTypeincludedA flag that specifies the status of the
cerent15216EdfaViewStatuscreateAndGoIf the entry currently exists, use
Enabling SNMP Remote Management Community Strings
cerent15216EdfaViewEntry 1
zeroDotZero
View Index: A unique value for each
MIB view.
This value is the number entered
with the command.
object identifier that designates a
sub-tree element in the MIB
hierarchy. zeroDotZero specifies the
entire CLI MIB hierarchy.
the subtree.
view. Valid entries are included and
excluded.
active. (CreateAndGo cannot be
used if any entry exists.)
5.2.2 Creating a Community Entry
SNMP communities are groupings of workstations and servers (or gateways) that can manage the
ONS 15216 EDFA2. NMSs use SNMP communities to enforce security. Because access to the SNMP
agent is controlled by a community entry, every SNMP agent must be configured to recognize one or
more community names, and to provide the appropriate level of access to managers according to the
community name. The following commands describe the commands for displaying or setting community
entries. Users should consult with the Cisco TAC before modifying these settings.
5.2.2.1 Set CommunityEntry
Commandsnmp row set local cerent15216EdfaCommunityEntry
Syntax Descriptionsnmp row set local cerent15216EdfaCommunityEntry community_index_#
After creating a view, use the snmp row set local cerent15216EdfaCommunityEntry command to
create a community entry for that view.
The SNMP manager prompts the user for each attribute. Press the Spacebar and then the Tab key after
a prompt to view possible data inputs (Example 5-4). Refer to Table 5-4 on page 5-8 for information
concerning data for each prompt.
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Example 5-4cerent15216EdfaCommunityEntry Set Command
ash:hostname:ONS15216 EDFA2> snmp row set local cerent15216EdfaCommunityEntry 3
Table 5-4 displays the definitions for the community entry values.
Table 5-4Creating a Community Entry
Chapter 5 SNMP MIB Installation and Configuration
Data PromptDescription
cerent15216EdfaCommIndexCommunity Index: An index that uniquely identifies a
particular SNMP community. This community index is part of
the command. In Example 5-4 on page 5-7, it is “3”.
cerent15216EdfaCommNameCommunity Name: The community string.
cerent15216EdfaCommViewIndexView Index: The view index specifies which MIBs this
particular community string can access.
cerent15216EdfaCommPrivilegesPrivileges: A bitmap of access privileges that govern what
management operations a particular community can perform.
These privileges are expressed as a sum of values, where each
value represents a particular operation. Refer to Table 5-5 on
page 5-9 for the SNMP Operation Decimal Values.
cerent15216EdfaCommSrcIPAddrSource IP Address: The IP address from which network
management traffic for this community originates.
cerent15216EdfaCommNetMaskNetMask: The subnet mask for the source IP address.
cerent15216EdfaCommStatusStatus: The status of this conceptual row in the community
table.Use createAndGo to create a new row. Use active to
modify an existing row.
5-8
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Enabling SNMP Remote Management Community Strings
FINAL DRAFT - CISCO CONFIDENTIAL
5.2.2.2 Display CommunityEntry
Commandsnmp row display local cerent15216EdfaCommunityEntry
Syntax Descriptionsnmp row display local cerent15216EdfaCommunityEntry community_index_#
After creating a community string, use this command to view its parameters. The number in the
command refers to the community index number created in the previous section.
Example 5-5cerent15216EdfaCommunityEntry Display Command
ash:hostname:ONS15216 EDFA2> snmp row display local cerent15216EdfaCommunityEntry 1
Table 5-5 displays the decimal values for the following SNMP operations.
Table 5-5SNMP Operation Decimal Values
SNMP OperationDecimal Values
Get1
GetNext2
Response (enable for all community strings)4
Set8
SNMPv1-Trap16
GetBulk32
Inform (enable for all community strings)64
SNMPv2-Trap (enable for all community strings)128
For example, 255 is the sum of all decimal values and specifies access to all SNMP operations. This sum
is the default private community. 247 is the sum for all SNMP operations with the exception of the Set
operation. This sum is the default public community.
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Setup for CTM Access
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5.3 Setup for CTM Access
Use the following procedure to configure a new ONS 15216 EDFA2 for Cisco Transport Manager
(CTM) access:
Step 1Log into the serial port. Use 19,000 bps, 8 bits, no parity, 1 stop, and no flow control over a
Step 6Telnet to the ASH shell by typing the following:
telnet <ONS 15216 EDFA2 IP address> 8023
Step 7Login using the user name CISCO15 and the password admin15##.
Step 8Enter the community information:
ash:hostname:ONS15216 EDFA2> snmp row set local cerent15216EdfaCommunityEntry 2 (Do not
use Entry 1 which is the RO public community)
cerent15216EdfaCommIndex = 2 (if the CommunityEntry is 2)
cerent15216EdfaCommName = "private" (must match the CTM community string entry)
cerent15216EdfaCommViewIndex = 1
cerent15216EdfaCommPrivileges = 255
cerent15216EdfaCommSrcIPAddr = 0.0.0.0 (for more security, enter CTM A's IP address)
cerent15216EdfaCommNetMask = 255.255.255.255
cerent15216EdfaCommStatus = 4
(active(1),notInService(2),notReady(3),createAndGo(4),createAndWait(5),destroy(6))
ash:hostname:ONS15216 EDFA2> snmp row set local cerent15216EdfaCommunityEntry 3
cerent15216EdfaCommIndex = 3 (if the CommunityEntry is 3)
cerent15216EdfaCommName = "private" (must match the CTM community string entry)
cerent15216EdfaCommViewIndex = 1
cerent15216EdfaCommPrivileges = 255
cerent15216EdfaCommSrcIPAddr = 0.0.0.0 (for more security, enter CTM B's IP address)
cerent15216EdfaCommNetMask = 255.255.255.255
cerent15216EdfaCommStatus = 4
(active(1),notInService(2),notReady(3),createAndGo(4),createAndWait(5),destroy(6))
5-10
Step 9Verify the community information:
ash:hostname:ONS15216 EDFA2> snmp table display local cerent15216EdfaCommunityEntry
Step 10Enter the trap destination information:
ash:hostname:ONS15216 EDFA2> snmp row set local cerent15216EdfaCommTrapEntry 1
ash:hostname:ONS15216 EDFA2> snmp table display local cerent15216EdfaCommTrapEntry
Step 12Enable traps:
ash:hostname:ONS15216 EDFA2> snmp attribute set local cerent15216EdfaAgentTrapEnable 1
Tables and Groups
Step 13Verify that traps are enabled:
ash:hostname:ONS15216 EDFA2> snmp attribute get local cerent15216EdfaAgentTrapEnable
Step 14Set network element (NE) ID:
ash:hostname:ONS15216 EDFA2> snmp attribute set local sysName<NE ID>
Step 15Save the new settings:
ash:hostname:ONS15216 EDFA2> snmp attribute set local cerent15216EdfaActionOpSaveConfig
perform
Step 16Log off:
ash:hostname:ONS15216 EDFA2> logoff
5.4 Tables and Groups
The cerent15216Edfa.mib contains several key tables that are used to review and provision the
ONS 15216 EDFA2. The following tables are listed and described in the following sections:
• CfgGroup Table, page 5-12
• PumpCfgEntry Table, page 5-14
• OverallStatusGroup Table, page 5-16
• OverallControl Table, page 5-18
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• PumpStatusEntry Table, page 5-18
• AlarmEntry Table, page 5-19
• OpGroup Table, page 5-20
• VersionGroup Table, page 5-21
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5.4.1 CfgGroup Table
The cerent15216EdfaCfgGroup table is used to set or get alarm threshold configuration. The associated
table command provides a summary of all alarm thresholds. See Table 5- 6 for variable definitions. For
more information on alarm thresholds, see the “Set Alarm Thresholds” section on page 4-5.
Common Language Equipment
Identifier (CLEI) code (established by
Telcordia) of the Cisco
ONS 15216 EDFA2. This attribute
can be accessed but not changed by
the user.
Read-write Simplex for one power source (Bus
A) or duplex for redundant power
source (Bus A and Bus B) Power Bus
mode.
Read-writeMinimum allowable power bus DC
voltage. The default maximum power
bus voltage is set at –40 VDC. Valid
entries are between 350 and 700 and
are in negative volts times 10. For
example, if the voltage required is –40
VDC, the power bus setting is 400.
The power bus threshold has a 1.0V
tolerance and a 1.0V hysteresis. If the
minimum threshold is configured at
400 (-40 VDC), the alarm will not
raise until the voltage goes below -39
VDC and will not clear until the
voltage goes above -41 VDC.
Read-writeMaximum allowable power bus DC
voltage. The default maximum power
bus voltage is set at –57 VDC. Valid
entries are between 350 and 700 and
are in negative volts times 10. For
example, if the voltage required is –57
VDC, the power bus setting is 570.
The power bus threshold has a 1.0V
tolerance and a 1.0V hysteresis. If the
maximum threshold is configured at
570 (-57 VDC), the alarm will not
raise until the voltage goes above -58
VDC and will not clear until the
voltage goes below -56 VDC.
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Use the snmp attribute set local cerent15216EdfaOpSaveConfig perform command to save changes.
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5.4.2 PumpCfgEntry Table
The cerent15216EdfaPumpCfgEntry table is used to set or get laser pump control mode configuration.
The associated table command displays a settings summary or allows you to set pumps. See Tabl e 5-7
for variable definitions. The factory default pump control mode for the ONS 15216 EDFA2 is Constant
Gain Temperature Compensated. Cisco recommends that users contact the Cisco TAC prior to changing
this mode of operation.
Integer (0 to 300) Read-writeConstant pump current (mA).
Integer (0 to 100) Read-writeConstant pump power (mW). The
Integer (0 to 650) Read-writeConstant output power (*10 mW). The
Not
Accessible
Read-writeLaser pump control mode. When the
Laser pump number (1 or 2).
mode is set directly to constCurrent,
constPower, or constOutputPower, the
current value of ConstPumpCurrent,
ConstPumpPower, or ConstOutPower
is used as the constant parameter for
the new mode.
The current that is used when the
pump control mode is changed to
constCurrent.
power that is used when the control
mode is changed to constPumpPower.
power that is used when the control
mode is changed to
constOutputPower.
5.4.2.1 Changing the Pump Control Mode
For Constant Gain Temperature Compensated mode, the system automatically sets the second pump to
this mode when either pump is set.
Constant Output Power mode is only valid for pump 2. If pump 2 is set to Constant Output Power Mode,
pump 1 is automatically set to Constant Pump Power mode with a value of 75 mW.
For Constant Pump Current or Constant Pump Power mode, the user should set both pump modes to be
the same.
Warning
Cisco ONS 15216 EDFA2 Operations Guide
5-14
The pump control modes Constant Pump Current, Constant Pump Power, and Constant Output Power
are to be used with very high precautions. They are service affecting and can reduce the life cycle of
the lasers if used in extreme conditions. The factory default setting and recommended mode of
operation is Constant Gain Temperature Compensated mode. Cisco recommends that users contact
the Cisco TAC before changing from this mode of operation.
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To set the ONS 15216 EDFA2 to Constant Pump Current mode, use the following steps:
Step 1Set the pump value using cerent15216EdfaPumpCfgConstPumpCurrent attribute.
a. Select pump 1.
b. Set the value.
Step 2Repeat Step 1 for pump 2.
Step 3Set the pump mode of operation using cerent15216EdfaPumpCfgControlMode attribute.
a. Select pump 1.
b. Set the mode.
Step 4Repeat Step 3 for pump 2.
Example 5-6 shows how to set the ONS 15216 EDFA2 to Constant Pump Current mode and then set it
back to Constant Gain Temperature Compensated mode. (Setting pump 1 or 2 to Constant Gain
Temperature Compensated mode sets both pumps to that mode.)
Example 5-6Setting Mode to Constant Pump Current and then Back to Constant Gain Temperature
ONS15216 EDFA2> snmp attribute set local cerent15216EdfaPumpCfgConstPumpCurrent 1
ONS15216 EDFA2> snmp attribute set local cerent15216EdfaPumpCfgConstPumpCurrent 2
ONS15216 EDFA2> snmp attribute set local cerent15216EdfaPumpCfgControlMode 1
ONS15216 EDFA2> snmp attribute set local cerent15216EdfaPumpCfgControlMode 1
ONS15216 EDFA2> snmp attribute set local cerent15216EdfaPumpCfgControlMode 2
ONS15216 EDFA2> snmp attribute set local cerent15216EdfaPumpCfgControlMode 1
5.4.2.2 Changing the Pump Control Value
To change the control value for Constant Gain Temperature Compensated mode, the user must set a new
value of cerent15216EdfaConstGainOverallGain.
Constant Output Power Mode is only valid for pump 2. To change the control value for pump 2, the user
must set the new value of cerent15216EdfaPumpCfgConstOutPower for pump 2 and then set the pump
to Constant Output Power mode for the setting to take effect. Pump 1 is automatically set to Constant
Pump Power mode with a value of 75 mW.
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To change the control value for Constant Pump Current mode, the user must set new values of
cerent15216EdfaPumpCfgConstPumpCurrent for both pumps and then set the pump control mode for
both pumps for the setting to take effect.
To change the control value for Constant Pump Power mode, the user must set new values of
cerent15216EdfaPumpCfgConstPumpPower for both pumps and then set the pump control mode for
both pumps for the setting to take effect.
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Tables and Groups
Step 1Set the pump value using cerent15216EdfaPumpCfgConstPumpCurrent attribute.
Step 2Repeat Step 1 for pump 2.
Step 3Set the pump mode of operation using cerent15216EdfaPumpCfgControlMode attribute.
Step 4Repeat Step 3 for pump 2.
Chapter 5 SNMP MIB Installation and Configuration
FINAL DRAFT - CISCO CONFIDENTIAL
For example, to change the value for Constant Pump Current mode, use the following steps:
a. Select pump 1.
b. Set the value.
a. Select pump 1.
b. Set the mode.
Example 5-7 shows how to set the value for Constant Pump Current mode to be 200 mA and then set the
mode to Constant Pump Current mode again for the settings to take effect.
Example 5-7Changing Value for Constant Pump Current Mode
ash:
hostname:
200
hostname:
ash:
200
ash:
hostname:
constCurrent
ash:
hostname:
constCurrent
ONS15216 EDFA2> snmp attribute set local cerent15216EdfaPumpCfgConstPumpCurrent 1
ONS15216 EDFA2> snmp attribute set local cerent15216EdfaPumpCfgConstPumpCurrent 2
ONS15216 EDFA2> snmp attribute set local cerent15216EdfaPumpCfgControlMode 1
ONS15216 EDFA2> snmp attribute set local cerent15216EdfaPumpCfgControlMode 2
5.4.3 OverallStatusGroup Table
The cerent15216EdfaOverallStatusGroup table allows users to display the input and output of the
ONS 15216 EDFA2 amplifier. Table 5-8 on page 5-17 describes cerent15216EdfaOverallStatusGroup
table variables.
Integer (0 to 230)Read-onlyThe measured overall gain
(*10 dB) that is used when
the control mode in the
PumpCfg table is set to
constGainTempComp
Integer (0 to 110)Read-onlyThe measured
pre-attenuation (*10 dB)
that is used when the
control mode in the
PumpCfg table is not set to
constGainTempComp
NoteThe values in mW and microW units are measured values. The dBm units are converted from mW or
microW to dBm, so theses values could be slightly different. If you take the cerent15216EdfaInPoweruW,
convert it to dBm (10log(cerent15216EdfaInPoweruW)) and compare the value to the attribute
cerent15216EdfaInPowerdBm, you will see a small difference. The difference is because of rounding error.
The value cerent15216EdfaInPoweruW that is displayed on the screen has been rounded, but the value used
in the calculation has more significant digits.
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5.4.4 OverallControl Table
The cerent15216EdfaOverallControl table allows the user to display and configure overall gain and
pre-attenuation. Table 5- 9 describes cerent15216EdfaOverallControl variables.
1. The value of the cerent15216EdfaPumpStatusGain variable should always be around 23 dB. This variable is the internal
amplifier module gain. The cerent15216EdfaPumpStatusGain variable should not be confused with the
cerent15216EdfaConstGainOverallGain variable that is used to set the gain of the ONS 15216 EDFA2. The
cerent15216EdfaPumpStatusGain is the value of the gain of the amplification module only, it does not take into account the
VOA (variable optical attenuator) attenuation. If you try to calculate the gain using the values of the
PumpStatusOutPowerdBm – PumpStatusInPowerdBm you will not get the exact PumpStatusGain value. A more complex
calculation is required to get the gain value. It needs to take ASE (amplified spontaneous emission) into account. This is often
called the amplifier noise. This variable will be more dominant when the input power to the amplifier is low.
Tables and Groups
Maximum
AccessDescription
Read-onlyDC voltage (*10V)
9999)
Read-onlyInput power (*10
99999)
microW)
Read-onlyInput power (*100
(–999999 to
dBm)
999999)
Read-onlyOutput power (*100
999999)
mW)
Read-onlyOutput power (*100
(–99999 to
dBm)
99999)
1
Integer (–9999
Read-onlyGain (*10 dB)
to 9999)
5.4.6 AlarmEntry Table
The cerent15216EdfaAlarmEntry table is used to display alarm status. The associated table command
provides a summary of all alarms. Ta bl e 5 -11 describes the cerent15216EdfaAlarmEntry table variables.
The cerent15216EdfaOpGroup table is used to display or set operation actions, such as saving
configuration or loading new software. The individual variables in Table 5 -12 are generally used instead
of the table command. That is, when performing a cutover command, the user would use the snmp attribute set local cerent15216EdfaOpCutover perform command.
cerent15216EdfaOpResult IntegerRead-onlyThis value is used to save the error
result (if any) of the last
operation. Success is indicated by
a value of 0.
cerent15216EdfaOpRequestIdIntegerRead-write The request identifier for this
operation. This is provided to
allow managers to match actions
and results.
cerent15216EdfaOpSaveCo
nfig
cerent15216EdfaActionRead-write To save the configuration of the
optical module, write “perform”
to this object.
cerent15216EdfaOpCutover cerent15216EdfaActionRead-write When “perform” is written to this
object, firmware is executed from
the current plane and the alternate
plane status is changed to the
default active plane.
cerent15216EdfaOpLoadcerent15216EdfaActionRead-write When “perform” is written to this
object, new firmware is
downloaded. Before setting this
attribute, the source of the new
firmware should be specified by
setting
cerent15216EdfaOpSrcFileName
and
cerent15216EdfaOpTftpSrvAddr.
cerent15216EdfaOpResetcerent15216EdfaActionRead-write When “perform” is written to this
5.4.8 VersionGroup Table
The cerent15216EdfaVersionGroup table allows users to display the currently loaded image and the
image to be loaded after cutover. Ta bl e 5 -13 describes cerent15216EdfaVersionGroup table variables.
IpAddressRead-write TFTP file server address for the
Read-write Source file name for the Load
operation.
Load operation.
object, a software reset is
performed.
VariableSyntax
cerent15216EdfaCurrentVersionDisplayString (0 to 255
cerent15216EdfaAlternateVersionDisplayString (0 to 255
5.5 Setting Up Traps
Traps are asynchronous notifications sent from the ONS 15216 EDFA2 to a predetermined location (IP
address, subnet mask, etc.). A community entry must be created prior to remotely setting up traps using
either Telnet or a terminal server. Table 5-14 on page 5-22 displays the alarm notification types in the
cerent15216Edfa.mib that initiate a trap.
characters)
characters)
Maximum
AccessDescription
Read-onlyThe version of the
currently loaded image.
Read-onlyThe version of the
image to be loaded after
a cutover is performed.
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Setting Up Traps
Chapter 5 SNMP MIB Installation and Configuration
FINAL DRAFT - CISCO CONFIDENTIAL
Table 5-14 Notification Types that Initiate a Trap
Commandsnmp row set local cerent15216EdfaCommTrapEntry
Syntax Descriptionsnmp row set local cerent15216EdfaCommTrapEntry #
The command followed by a community number permits the user to set the parameters for the SNMP
trap. Example 5-9 on page 5-23 displays the prompts that appear after entering the command.
Prompts appear for the following settings:
• cerent15216EdfaCommTrapCommunity: The trap destination community name.
• cerent15216EdfaCommTrapDestIPAddress: The trap destination IP address.
• cerent15216EdfaCommTrapDestUDPPort: The trap destination UDP port.
• cerent15216EdfaCommTrapViewIndex: The trap destination MIB view index. A trap may be sent to
this destination if it is contained in this MIB view. A 0 implies no MIB view.
• cerent15216EdfaCommTrapVersion: The trap version number.
Setting Up Traps
• cerent15216EdfaCommTrapStatus: The status of this conceptual row in the
cerent15216EdfaCommunityTrapTable.
If the data needs to be changed, enter new data after the prompt.
Example 5-9cerent15216EdfaCommTrapEntry Set Command
ash:hostname:ONS15216 EDFA2> snmp row set local cerent15216EdfaCommTrapEntry 1
cerent15216EdfaSromIpMgmtEnetAddressThe IP address used by the system Ethernet
management port. If set to 0.0.0.0, IP traffic is not
supported over the Ethernet interface.
cerent15216EdfaSromIpMgmtDefaultRouterAd
dress
The default router (gateway) address for the
network.
cerent15216EdfaSromIpMgmtEnetSubNetMask The IP subnet mask for the Ethernet management
port.
cerent15216EdfaSromIpMgmtHostNameThe host name of the system.
5.6.2 Date and Time
Commandsnmp attribute get local cerent15216EdfaRtcDateAndTime
Retrieving Information
Syntax Descriptionsnmp attribute get local cerent15216EdfaRtcDateAndTime
Displays the date and time for the ONS 15216 EDFA2.
The following SNMP command displays the date and time for the ONS 15216 EDFA2 and other time
data:
• snmp row display local cerent15216EdfaRtcDateAndTime command
The following SNMP command sets the date and time for the ONS 15216 EDFA2 and other time data:
• snmp attribute set local cerent15216EdfaRtcDateAndTimeLocalString command
When setting the local time of day, set the time zone first, set the DST offset second, and set the local
time last. Entries must follow this format: “yyyy-m-d,h:m:s.s +h:m”. Following the space, the time zone
is set as +/– hours from Greenwich Mean Time (GMT) (also designated as universal coordinated time
(UTC)) followed by a colon and minutes ahead for daylight savings. For example, Pacific Daylight Time
would be –8:60 and Greenwich Mean Time would be +0:0.
Example 5-11 displays the ONS 15216 EDFA2 command for displaying the date and time.
Example 5-11 cerent15216EdfaRtcDateAndTime Display Command
ash:hostname:ONS15216 EDFA2> snmp row display local cerent15216EdfaRtcDateAndTime
cerent15216EdfaRtcDateAndTimeLocalThe current local time.
cerent15216EdfaRtcDateAndTimeGMTThe current GMT time.
cerent15216EdfaRtcDateAndTimeLocalStringThe current local time.
cerent15216EdfaRtcDateAndTimeGMTStringThe current GMT time.
cerent15216EdfaRtcDateAndTimeTimezoneThe time zone in hours from GMT.
cerent15216EdfaRtcDateAndTimeSavingThe current daylight saving offset in minutes.
cerent15216EdfaRtcDateAndTimeFormsStringThe current local time.
5.6.3 Power Gain
Commandsnmp attribute get local cerentEdfa15216EdfaConstGainOverallGain
Syntax Descriptionsnmp attribute get local cerentEdfa15216EdfaConstGainOverallGain #
Displays the overall power gain when the ONS 15216 EDFA2 is in Constant Gain Temperature
Compensated mode.
The following commands access overall power gain when in the Constant Gain Temperature
Compensated mode:
• snmp row display local cerent15216EdfaOverallControl command
• snmp row get local cerent15216EdfaOverallControl command
The cerent15216EdfaConstGainOverallGain attribute in cerent15216EdfaOverallControl display
command shows the ONS 15216 EDFA2 power gain (Example 5-12 on page 5-26).
Example 5-12 cerent15216EdfaOverallControl Display Command
ash:hostname:ONS15216 EDFA2>snmp row display local cerent15216EdfaOverallControl
For information about all of the parameters in the cerent15216EdfaOverallStatusGroup, refer to
Table 5-8 on page 5-17.
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5.6.4 Case Temperature
5.6.4.1 Case Temperature Value
Commandsnmp attribute get local cerent15216EdfaPumpStatusAmbientTemp
Syntax Descriptionsnmp attribute get local cerent15216EdfaPumpStatusAmbientTemp pump#
Displays case temperature value (where pump# is the pump number).
The following command displays the temperature value (where pump# is the pump number) and other
pump status data:
• snmp row display local cerent15216EdfaPumpStatusAmbientTemp pump# command
The cerent15216EdfaPumpStatusAmbientTemp attribute of the cerent15216EdfaPumpStatusEntry
display command shows the case temperature (Example 5-13).
Retrieving Information
Example 5-13 cerent15216EdfaPumpStatusEntry Display Command
ash:hostname:ONS15216 EDFA2> snmp row display local cerent15216EdfaPumpStatusEntry 1
Refer to Table 5-10 on page 5-18 for information about all of the parameters in the
cerent15216EdfaPumpStatusEntry table.
5.6.4.2 Case Temperature Alarm Threshold
5.6.4.2.1 CtmpMin
Commandsnmp attribute get local cerent15216EdfaCtmpMin
Syntax Descriptionsnmp attribute get local cerent15216EdfaCtmpMin
This command displays minimum case temperature alarm threshold.
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5.6.4.2.2 CtmpMax
snmp attribute get local cerent15216EdfaCtmpMax
Syntax Descriptionsnmp attribute get local cerent15216EdfaCtmpMax
This command displays maximum case temperature alarm threshold.
The following command displays case temperature alarm threshold and other temperature data:
• snmp row display local cerent15216EdfaCfgGroup command
This command is shown in Example 5-14.
Example 5-14 cerent15216EdfaCfgGroup Display Command
ash:hostname:ONS15216 EDFA2> snmp row display local cerent15216EdfaCfgGroup
Refer to Table 5-8 on page 5-17 for information about all of the parameters in
cerent15216EdfaOverallStatusGroup.
5.6.4.3 Case Temperature Alarm Hysteresis
5.6.4.3.1 CtmpMaxHysteresis
Commandsnmp attribute get local cerent15216EdfaCtmpMaxHysteresis
Syntax Descriptionsnmp attribute get local cerent15216EdfaCtmpMaxHysteresis
Displays maximum case temperature alarm hysteresis.
The cerent15216EdfaCtmpMaxHysteresis attribute in the cerent15216EdfaCfgGroup display command
shows the maximum case hysteresis temperature alarm threshold (Example 5-14 on page 5-28). Refer to
Table 5-6 on page 5-12 for information about all of the parameters in cerent15216EdfaCfgGroup.
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5.6.4.3.2 CtmpMinHysteresis
Commandsnmp attribute get local cerent15216EdfaCtmpMinHysteresis
Syntax Descriptionsnmp attribute get local cerent15216EdfaCtmpMinHysteresis
Displays the minimum case hysteresis temperature alarm threshold.
The following command displays case temperature alarm hysteresis and other data:
• snmp row display local cerent15216EdfaCfgGroup command
The cerent15216EdfaCfgGroup command is shown in Example 5-14 on page 5-28. For information
about all of the parameters in the cerent15216EdfaCfgGroup table, see Table 5-6 on page 5-12.
5.6.5 Power Bus
Retrieving Information
5.6.5.1 Power Bus Mode
Commandsnmp attribute get local cerent15216EdfaPowerBusMode
Syntax Descriptionsnmp attribute get local cerent15216EdfaPowerBusMode
Displays the power bus mode (simplex or duplex).
The following command displays power bus voltage and other data:
• snmp row display local cerent15216EdfaCfgGroup command
5.6.5.2 Power Bus Alarm Threshold
5.6.5.2.1 PowerBusDCVoltageMax
Commandsnmp attribute get local cerent15216EdfaPowerBusDCVoltageMax
Syntax Descriptionsnmp attribute get local cerent15216EdfaPowerBusDCVoltageMax
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Displays the maximum allowable power bus DC voltage (multiplied by –10V).
The following command displays power bus voltage and other data:
• snmp row display local cerent15216EdfaCfgGroup command
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5.6.5.2.2 PowerBusDCVoltageMin
Commandsnmp attribute get local cerent15216EdfaPowerBusDCVoltageMin
Syntax Descriptionsnmp attribute get local cerent15216EdfaPowerBusDCVoltageMin
Displays the minimum allowable power bus DC voltage (multiplied by –10V).
The following command displays power bus voltage and other data:
• snmp row display local cerent15216EdfaCfgGroup command
5.6.6 Input Power (Signal)
5.6.6.1 Input Power (Signal) Value
5.6.6.1.1 InPowerduW
Commandsnmp attribute get local cerent15216EdfaInPoweruW
Syntax Descriptionsnmp attribute get local cerent15216EdfaInPoweruW
Displays input power value in microwatts.
The following command displays the ONS 15216 EDFA2 input power value and other status
information:
• snmp row display local cerent15216EdfaOverallStatusGroup command
For information about all of the parameters in the cerent15216EdfaOverallStatusGroup table, see
Table 5-8 on page 5-17.
5.6.6.1.2 InPowerdBm
Commandsnmp attribute get local cerent15216EdfaInPowerdBm
Syntax Descriptionsnmp attribute get local cerent15216EdfaInPowerdBm
Displays the input power value in dBm. The dBm units are converted from µW to dBm, so theses values
could be slightly different due to rounding error.
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The following command displays input power value and other status information:
• snmp row display local cerent15216EdfaOverallStatusGroup command
For information about all of the parameters in the cerent15216EdfaOverallStatusGroup table, refer to
Table 5-8 on page 5-17.
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5.6.6.2 Loss of Signal (Input Power) Alarm Threshold
Commandsnmp attribute get local cerent15216EdfaLOSThreshold
Syntax Descriptionsnmp attribute get local cerent15216EdfaLOSThreshold
Displays the loss of signal (input power) alarm threshold.
The following command displays the loss of input power alarm threshold and other laser power and
temperature data:
• snmp row display local cerent15216EdfaCfgGroup command
The cerent15216EdfaLOSThreshold attribute in the cerent15216EdfaCfgGroup display command shows
the loss of input power alarm threshold (Example 5-14 on page 5-28).
For information about all of the parameters in the cerent15216EdfaCfgGroup table, refer to Table 5-6 on
page 5-12.
Retrieving Information
5.6.6.3 Loss of Signal (Input Power) Alarm Hysteresis
Commandsnmp attribute get local cerent15216EdfaLOSHysteresis
Syntax Descriptionsnmp attribute get local cerent15216EdfaLOSHysteresis
Displays the loss of signal (input power) alarm hysteresis value.
The following command displays the loss of input power hysteresis value and other laser power and
temperature data:
• snmp row display local cerent15216EdfaCfgGroup command
The cerent15216EdfaLOSHysterisis attribute in the cerent15216EdfaCfgGroup display command shows
the loss of input power alarm threshold (Example 5-14 on page 5-28). For information about all of the
parameters in the cerent15216EdfaCfgGroup table, refer to Table 5-6 on page 5-12.
5.6.7 Output Power
5.6.7.1 Output Power Value
5.6.7.1.1 OutPowermW
Commandsnmp attribute get local cerent15216EdfaOutPowermW
Syntax Descriptionsnmp attribute get local cerent15216EdfaOutPowermW
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Displays output power value in milliwatts.
The snmp row display local cerent15216EdfaOverallStatusGroup command displays the
ONS 15216 EDFA2 output power value and additional pump status. For information about all of the
parameters in the cerent15216EdfaOverallStatusGroup table, refer to Table 5-8 on page 5-17.
5.6.7.1.2 OutPowerdBm
Commandsnmp attribute get local cerent15216EdfaOutPowerdBm
Syntax Descriptionsnmp attribute get local cerent15216EdfaOutPowerdBm
Displays output power value in dBm. This command displays loss of output power value and additional
pump status data. The dBm units are converted from mW to dBm, so theses values could be slightly
different due to rounding error.
For information about all of the parameters in the cerent15216EdfaOverallStatusGroup table, refer to
Table 5-8 on page 5-17.
Chapter 5 SNMP MIB Installation and Configuration
5.6.7.2 Loss of Output Power Alarm Setpoint
5.6.7.2.1 LpoutSetpoint
Commandsnmp attribute get local cerent15216EdfaLpoutSetpoint
Syntax Descriptionsnmp attribute get local cerent15216EdfaLpoutSetpoint
This attribute notifies network operations personnel notification if the output power of the
ONS 15216 EDFA2 drops below a level that impacts proper operation of the optical network.
Typically, network operations personnel should set the loss of output power alarm threshold at a value
that is appropriate for the intended network application so that the alarm condition is meaningful.
Consult with the Cisco TAC to determine threshold value for your application. As a guideline, Cisco
recommends that loss of output power alarm threshold value be set at 1 dB below the current output
power level of the amplifier.
When the ONS 15216 EDFA2 is set to Constant Gain Temperature Compensated mode (factory default),
the value for loss of output power alarm threshold cannot be changed. To display the loss of output power
alarm threshold and other power and temperature alarm data, use the snmp table display local cerent15216EdfaCfgGroup command (shown in Example 5-14 on page 5-28). This command returns
the current alarm threshold default values.
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5.6.7.2.2 LpoutDeviation
Commandsnmp attribute get local cerent15216EdfaLpoutDeviation
Syntax Descriptionsnmp attribute get local cerent15216EdfaLpoutDeviation
This attribute is not required when operating in factory default Constant Gain Temperature Compensated
mode. Setting of the loss of output power alarm deviation is only necessary when the amplifier is used
in Constant Output Power mode.
This attribute is used to set the amount by which the output power must vary from the threshold set point
before the alarm is activated. This attribute, in conjunction with the loss of output power alarm threshold
and hysteresis, enables notification of network operations personnel if the output power of the
ONS 15216 EDFA2 drops below a level that would impact proper operation of the optical network.
Typically, network operations personnel should set the loss of output power alarm deviation at a value
that is appropriate for the intended network application so that the alarm condition is meaningful.
Consult with the Cisco TAC to determine the deviation value for your application. As a guideline, Cisco
recommends that the loss of output power alarm deviation value be set at 2 dB. The module triggers an
alarm if it detects a signal level of 2 dB below the current output power alarm level threshold value set
for the amplifier.
When the ONS 15216 EDFA2 is set to Constant Gain Temperature Compensated mode (factory default),
the value for the loss of output power alarm threshold cannot be changed. To display the loss of output
power alarm deviation and other power and temperature alarm data, use the snmp table display local cerent15216EdfaCfgGroup command as shown in Example 5-14 on page 5-28. This command returns
the current alarm threshold default values.
Retrieving Information
To set the loss of output power alarm deviation when the ONS 15216 EDFA2 is configured for operation
in Constant Output Power or Constant Pump Power mode, type snmp attribute set local cerent15216EdfaLpoutDeviation at the command prompt followed by a number (as shown in
Example 5-15 on page 5-33). Valid entries are between 0 and 1000 and are in dB times 100. For example,
if the loss of output power deviation required were 0.2 dB, the number input as the loss of output power
alarm deviation would be 20.
The user is prompted to modify the attribute. If no changes are required, press Enter to return to
command prompt.
Example 5-15 cerent15216EdfaLpoutDeviation Set Command
ash:hostname:ONS15216 EDFA2> snmp attribute set local cerent15216EdfaLpoutDeviation 200
ash:hostname:ONS15216 EDFA2> snmp row display local cerent15216EdfaCfgGroup
Changes must be saved before terminating the session. See the “Save Changes” section on page 4-11.
5.6.7.3 Loss of Output Power Alarm Hysteresis
Commandsnmp attribute get local cerent15216EdfaLpoutHysteresis
Syntax Descriptionsnmp attribute get local cerent15216EdfaLpoutHysteresis
This attribute is not required when operating in factory default Constant Gain Temperature Compensated
mode. Setting of the loss of output power alarm deviation is only necessary when the amplifier is used
in Constant Output Power or Constant Pump Power modes of operation.
This attribute is used to set the amount by which the output power must increase from the threshold
setpoint before the alarm is cleared. This attribute, in conjunction with the loss of output power alarm
threshold and deviation, enables efficient processing and clearing of the alarm condition.
Typically, network operations personnel should set the loss of output power alarm hysteresis at a value
that is appropriate for the intended network application so that the alarm condition is meaningful.
Consult with the Cisco TAC to determine the hysteresis value for your application. As a guideline, Cisco
recommends that loss of output power alarm hysteresis value be set at 0.2 dB. The module clears the
alarm if it detects a signal level of 0.2 dB above the current output power alarm level threshold value set
for the amplifier.
When ONS 15216 EDFA2 is set to Constant Gain Temperature Compensated mode (factory default), the
value for loss of output power alarm threshold cannot be changed. To display the loss of output power
alarm deviation and other power and temperature alarm data, use the snmp table display local cerent15216EdfaCfgGroup command as shown in Example 5-14 on page 5-28. This command returns
the current alarm threshold default values.
To set the loss of output power alarm hysteresis when ONS 15216 EDFA2 is configured for operation in
either Constant Output Power mode or Constant Pump Power mode, type snmp attribute set local cerent15216EdfaLpoutHysteresis at the command prompt followed by a number. Valid entries are
between 0 and 1000 and are in dB times 100. For example, if the loss of output power hysteresis required
were 0.2 dB, the number input as loss of output power alarm hysteresis would be 200.
The user is prompted to modify the attribute. If changes are not required, press Enter to return to
command prompt.
Changes must be saved before terminating the session. See the “Save Changes” section on page 4-11.
5.6.8 Database Backup and Restore
The configuration information for the ONS 15216 EDFA2 can be saved in a file for later use or to
configure other ONS 15216 EDFA2 units. This file contains manufacturing information about the unit
that is being backed up (such as part number and serial number), setup information for the unit (such as
IP address and host name), all configuration information (such as alarm thresholds and pump mode), and
the user database.
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The backup file is saved with cyclic redundancy code (CRC) to ensure data integrity, and the user names,
passwords, and other system settings are encrypted for security. Only the configuration information and
user database are copied back to the ONS 15216 EDFA2 during a restore.
5.6.8.1 Database Backup Procedure
Step 1Back up the system configuration to a file (in this case, dbbkup) on the FFS:
a. Set cerent15216EdfaOpDbFileName = "dbbkup".
b. Set cerent15216EdfaOpRequestId = 1.
c. Set cerent15216EdfaOpDbBackup = 2.
d. Wait until cerent15216EdfaOpStatus goes from inprogress to idle.
e. Verify that cerent15216EdfaOpResult is 0.
Step 2Verify that the backup file is on the FFS by getting the table cerent15216EdfaFfsFileEntry.
Step 3Copy the backup file to your TFTP server:
a. Set cerent15216EdfaFfsOpRequestId = 2.
Retrieving Information
b. Set cerent15216EdfaFfsOpSrcName = "dbbkup".
c. Set cerent15216EdfaFfsOpDstName = "dbbkup".
d. Set cerent15216EdfaFfsOpTftpSrvAddr = a.b.c.d (your TFTP server address).
e. Set cerent15216EdfaFfsOpOperation = 3 (put).
f. Set cerent15216EdfaFfsOpAction = 2 (perform).
Step 4Wait for the TFTP put to complete and check that cerent15216EdfaFfsOpResult = 0 and that
cerent15216EdfaFfsOpCopyProgress contains the number of bytes in the file “dbbkup”.
Step 5Copy file from your TFTP server to the FFS:
a. Set cerent15216EdfaFfsOpRequestId = 2.
b. Set cerent15216EdfaFfsOpSrcName = "dbbkup".
c. Set cerent15216EdfaFfsOpDstName = "dbbkup".
d. Set cerent15216EdfaFfsOpTftpSrvAddr = a.b.c.d (your TFTP server address).
e. Set cerent15216EdfaFfsOpOperation = 2 (get).
f. Set cerent15216EdfaFfsOpAction = 2 (perform).
Step 6Verify that the file “dbbkup” is on the FFS by getting the table cerent15216EdfaFfsFileEntry.
5.6.8.2 Database Restore Procedure
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The configuration information for the ONS 15216 EDFA2 can be restored form a file. During this
process, all configuration information (such as alarm thresholds and pump mode) and the user database
from the file are replaced in the ONS 15216 EDFA2 memory and FFS.
Before the restore begins, a cyclic redundancy code (CRC) check is performed to ensure data integrity.
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Retrieving Information
Step 1Restore from the backup database from a file (in this case, dbbkup) on the FFS:
a. Set cerent15216EdfaOpDbFileName = "dbbkup".
b. Set cerent15216EdfaOpRequestId = 1.
c. Set cerent15216EdfaOpDbRestore = 2.
d. Wait until cerent15216EdfaOpStatus goes from inprogress to idle.
e. Verify that cerent15216EdfaOpResult is 0.
Step 2Save the changes by setting cerentEdfa15216OpSaveConfig = 2.
Step 3Reboot the ONS 15216 EDFA2 by setting cerentEdfa15216OpReset = 2.
After the processor reboots, user names and passwords from the new user database must be used for
access.
5.6.9 Alarm Entry
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Commandsnmp table display local cerent15216EdfaAlarmEntry
Syntax Descriptionsnmp table display local cerent15216EdfaAlarmEntry
Accesses the alarm status. Example 5-16 shows the cerent15216EdfaAlarmEntry display command.
Example 5-16 cerent15216EdfaAlarmEntry Display Command
ash:hostname:ONS15216 EDFA2> snmp table display local cerent15216EdfaAlarmEntry
For information about all of the parameters in the cerent15216EdfaAlarmEntry table, refer to Ta ble 5 -11
on page 5-19.
5.7 Summary of SNMP Alarms
Table 5-17 summarizes the ONS 15216 EDFA2 SNMP alarms.
Table 5-17 SNMP Alarms
Alarm Index Alarm IDDescriptionPriority
1lcrnt1Excessive pump current for pump 1. Drive current
greater than 95% of end of life value. Current must drop
to 90% of end of life value for alarm to clear.
2lcrnt2Excessive pump current for pump 2. Drive current
greater than 95% of end of life value. Current must drop
to 90% of end of life value for alarm to clear.
3ltmp1Pump 1 laser temperature out of range. Chip
temperature deviating more than 10 degrees C from the
manufacturer-defined setpoint.
4ltmp2Pump 2 laser temp. out of range. Chip temperature
deviating more than 10 degrees C from the
manufacturer-defined setpoint.
5lpoutLoss of output power. EDFA output power is deviating
more than the value of cerent15216EdfaLpoutDeviation
from the value of cerent15216EdfaLpoutSetpoint. This
alarm is only valid for constOutputPower and idle
modes.
6lpinLoss of input power (signal). EDFA input power is
below the value of cerent15216EdfaLOSThreshold.
7gainGain out of range. Gain has deviated more than 1.25 dB
from the setpoint in constGainTempComp mode. This
alarm is also triggered if the input power goes outside
the manufacturer-defined range by more than 0.15 dB.
8ctmpThe case temperature out of the threshold range.
9powerBusA The Power Bus A voltage is out of the threshold range.
The power bus threshold has a 1.0V tolerance and a
1.0V hysteresis. There is a ±1.5V inaccuracy in the
ONS 15216 EDFA2 voltage measurement.
10powerBusB The Power Bus B voltage is out of the threshold range.
The power bus threshold has a 1.0V tolerance and a
1.0V hysteresis. There is a ±1.5V inaccuracy in the
ONS 15216 EDFA2 voltage measurement.
1. A single power bus alarm is Minor. If the power system is in duplex mode and an alarm is raised on both power buses, the
second alarm is Critical.
Summary of SNMP Alarms
Minor
Minor
Minor
Minor
Major
Major
Major
Minor
Minor/Critical
Minor/Critical
1
1
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