SNMP and the Management Information Base
A Simple Network Management Protocol (SNMP) Management Information Base (MIB) is a hierarchically organized collection of information, such as Loss of Signal Alarm Thresholds, about the network. MIBs consist of managed objects that are identified by object identifiers (OIDs). An MIB supplies the pertinent attributes of a device. Some attributes are fixed in the MIB while others are dynamic values calculated by the agent software running on the device.
SNMP is an application-layer protocol enabling a device user to retrieve and modify management information from a MIB and to provide event notification to a network management system (NMS).
This chapter explains how to read and understand the SNMP MIB as it relates to the Cisco ONS 15216 EDFA3. This chapter contains the following sections:
10.1 Overview
The ONS 15216 EDFA3 SNMP implementation uses standard Internet Engineering Task Force (IETF) MIBs to convey inventory, fault, and performance management information. SNMP allows management of the ONS 15216 EDFA3 by a generic third-party SNMP manager such as Cisco Transport Manager (CTM), HP OpenView Network Node Manager (NNM), or Open Systems Interconnection (OSI) NetExpert. While an SNMP agent is included with the ONS 15216 EDFA3, no SNMP manager is included with the ONS 15216 EDFA3.
The ONS 15216 EDFA3 supports SNMP Version 1 (SNMPv1) and SNMP Version 2c (SNMPv2c).
SNMP includes a limited set of management commands and responses that can be used in order to retrieve a single object variable or multiple object variables or to establish the value of a single variable. When an SNMP command is sent, the managed agent sends a Response message to indicate completion of the Get, GetNext, GetBulk, or Set. The managed agent sends an event notification, called a trap, to the management system in order to identify the occurrence of conditions such as a threshold that exceeds a preset value.
10.1.1 SNMP Components
An SNMP-managed network consists of three primary components:
- Managed devices (for example, the ONS 15216 EDFA3and ONS 15454)
- Agents (for example, the SNMP agent that resides on the ONS 15216 EDFA3)
- Management systems (for example, CTM or HP OpenView NNM)
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 EDFA3.
10.1.2 ONS 15216 EDFA3 SNMP Elements
The following three SNMP elements can used with the ONS 15216 EDFA3:
- SNMP agent
- SNMP MIB
- A third-party SNMP manager
The MIB file names are:
- rfc 1155.mib
- rfc 1212.mib
- rfc 1213.mib
- rfc 1157.mib
- rfc 1445.mib
- rfc 1901.mib
- rfc 1906.mib
- rfc 1907.mib
- rfc 1908.mib
- rfc 2011.mib
- rfc 2012.mib
- rfc 2013.mib
- rfc 2579.mib
- rfc 2580.mib
- rfc 2737.mib
- rfc 3014.mib
- cerentedfa3.mib
- CERENT-GLOBAL-REGISTRY.mib
- CERENT-TC.mib
The SNMP elements are shown in Figure 10-1.
Figure 10-1 SNMP Elements
10.1.2.1 SNMP Agent
An agent is an entity that assumes an operational role to receive, process, and respond to requests and generated event reports. The SNMP agent gathers data from the MIB, which is the repository for device parameters 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.
Cisco provides an SNMP agent (installed on the ONS 15216 EDFA3) and an SNMP MIB to monitor and configure parameters for the ONS 15216 EDFA3. The SNMP agent software and MIB are preinstalled on each ONS 15216 EDFA3.
Figure 10-2 shows the relationship between the SNMP agent and the MIB.
Figure 10-2 SNMP Agent and MIB
10.1.2.2 SNMP MIB
A MIB is a collection of definitions of the properties of each managed object within a managed device. Each managed device keeps a corresponding database of values for each of the definitions written in the 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 file specifies what ONS 15216 EDFA3 information needs to be monitored. The CERENT-15216-EDFA-MIB.mib file 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 uses the SNMP MIBs to communicate with the SNMP agent.
10.1.2.3 SNMP Manager
The ONS 15216 EDFA3 requires a third-party SNMP manager in order to use SNMP commands. The SNMP manager can be accessed and used to communicate with the SNMP agent that is preinstalled on each ONS 15216 EDFA3. This document shows examples of issuing SNMP commands to the amplifier using the CTM SNMP manager.
Note
The community string must be set up using TL1 before SNMP commands can be used. The string can be set using TL1 commands (see Chapter 9, “Preparing to Use SNMP”).
SNMP managers from third-party vendors running on a separate computer located at a network management center are used to manage network elements. The third-party SNMP manager must be able to communicate with the SNMP agent preinstalled on the ONS 15216 EDFA3.
Each vendor-specific SNMP manager has an unique set of instructions for SNMP MIB installation. For directions on loading the SNMP MIBs, refer to your SNMP manager documentation. Cisco does not provide a standard third-party SNMP manager. See the Cisco Transport Manager Operations Guide for information about using CTM.
10.1.2.4 SNMP Traps
The ONS 15216 EDFA3 can receive SNMP requests from a number of SNMP managers and send traps to ten trap receivers. The ONS 15216 EDFA3 generates all alarms and events as SNMP traps. These traps will send to a maximum of ten different managers (include ten different IP addresses).
The ONS 15216 EDFA3 generates traps containing an object ID that uniquely identifies the alarm. An entity identifier uniquely identifies the entity that generated the alarm. The traps give the severity of the alarm (critical, major, minor, event, etc.) and indicate whether the alarm is service affecting or non-service affecting. The traps also contain a date/time stamp that shows the date and time the alarm occurred. The ONS 15216 EDFA3 also generates a trap for each alarm when the alarm condition clears. The trap for SNMPv2c also includes the sender IP address.
Each SNMP trap contains eleven variable bindings. The standard bindings for the ONS 15216 EDFA3 are listed in Table 10-1 .
Table 10-1 Standard SNMP Trap Variable Bindings for ONS 15216 EDFA3
|
|
|
|
coldStart |
RFC1907-MIB |
Agent up, cold start (delay for system routing). |
warmStart |
RFC1907-MIB |
Agent up, warm start (delay for system routing). |
authenticationFailure |
RFC1907-MIB |
Community string does not match. |
entConfigChange |
RFC2737/ENTITY-MIB |
The entLastChangeTime value has changed. |
10.1.2.5 SNMP Generic Objects
All sent traps are saved to the log file for viewing by the operator. One log file stores up to 1024 traps and events. There are two SNMP trap files:
- snmpNotifyLofA
- snmpNotifyLogB
In total, 2048 traps can be stored. The SNMP agent can be used to save or clear important traps and event statuses on the cerent15216EdfaGenericStandingCondnTable.
10.1.3 Entering Measurement Units with SNMP Commands
The SNMP interface for the ONS 15216 EDFA3 does not understand decimals. For this reason, when a decimal value (10.1, for example) is entered, you must specify that value as 101. In order to provide consistency, whole numbers also must have an additional digit appended to them (10, for example, would be entered as 100).
The TL1 interface represents values as floating points.
10.2 SNMP MIBs and Message Types
Using SNMP operations, a manager can retrieve or modify the value of management information accessible by an agent. An agent can report an event to a manager. A manager can inform another manager of the value of management information on an agent.
Using retrieval and modification operations, the manager can cause an agent to perform an action or to execute a command. The manager can also create new and delete existing instances of management information in the MIB.
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 that are identified by object identifiers (OID). To view the contents of a table, select the table, and perform a GET operation on the table.
The ONS 15216 EDFA3 SNMP agent communicates with an SNMP management application (a third-party application) using SNMP messages. Table 10-2 describes SNMP operation types.
Table 10-2 SNMP Operation Types
|
|
|
get-request |
Retrieves a value from a specific variable in the MIB. |
get-next-request |
Retrieves 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-response |
The reply to a get-request, get-next-request, get-bulk-request, or set-request sent by an NMS. |
get-bulk-request |
Similar to a get-next-request, but this operation fills the get-response with up to the max-repetition number of get-next interactions. |
trap |
An unsolicited message sent by an SNMP agent to an SNMP manager indicating that an event has occurred. |
set-request |
Sets the value of a specific variable. |
10.3 SNMP Capabilities
This section discusses some of the capabilities of SNMP.
10.3.1 Community String Support
The SNMP implementation allows the Community String parameter to be configurable for each SNMP manager.
10.3.2 Trap Destination Table
For security purposes, the Trap Destination Table cannot be modified through the SNMP interface. It can be modified through the TL1 interface.
10.3.3 Enable/Disable SNMP set-request Operations
The SNMP agent provides a parameter to enable or disable the set-request operations. This parameter can be modified only through the TL1 interface.
10.3.4 Log
The SNMP agent can manage trap accumulations for up to 1000 events. When the limit has been reached, the log wraps without sending any notification. Every trap is saved into the log file in real time.
10.3.5 SNMP Attribute Value Change Notification
The SNMP agent sends an event to all connected SNMP managers to notify them of any changes in the ONS 15216 EDFA3 database.
10.3.6 General Software Downloading
Only one download session is permitted at a time (using FTP, TL1, or the SNMP interface). During the download, the SNMP command to start and to apply the cutover is inhibited. The EDFA3 can store and retrieve the two versions of its software on its flash file system (FFS):
- Active (specified in the first boot entry)
- Standby (specified in the second boot entry)
The module firmware download is transparent to the user (the user is not aware of it happening during software download). A checksum test on the downloaded software file is performed to prevent loading the wrong files on the ONS 15216 EDFA3. To activate the download, the user provides the following parameters:
- IP address, user identifier, and password for the FTP server
- Name and path of the file to be downloaded
The agent download is accomplished using FTP protocol, according to this procedure:
1. The agent receives the command to start the download.
2. The agent acts as a FTP client to open a connection to the specified FTP server. The agent returns an error message if the connection fails.
3. The TL1 agent posts the get command to the FTP server and then sends the event to indicate that the download is in progress (ipdownload).
4. Upon successful file transfer, the agent issues a (compldownload) event that indicates the success of the operation.
5. In case of transfer failure or checksum failure, the agent generates an event (failuredownload) to notify the ONS 15216 EDFA3 that the download attempt failed.
The agent does not process any other download command during an active download.
The download replaces the software file contained in the secondary boot entry. To activate the new software file a command is used to apply the software cutover in memory and to reset the EDFA3. One event is generated to communicate the software cutover and the EDFA3 reset (cutoverreset) to the ONS 15216 EDFA3.
10.4 ONS 15216 EDFA3 Tables and Groups
The cerent15216Edfa.mib contains several key tables that are used to review and provision the ONS 15216 EDFA3. These tables are listed and described in the following sections:
The MIB used in the ONS 15216 EDFA3 contains several key tables and groups. To fully understand and use them, Table 10-3 lists the main object identifier, syntax, access, and description.
Table 10-3 Standard MIB
|
|
|
|
|
sysDescr |
DisplayString (SIZE (0..255)) |
read-only |
A textual description of the entity. This value should include the full name and version identification of the system hardware type, software operating system, and networking software. Modify using TL1. |
sysName |
DisplayString (SIZE (0..255)) |
read-write |
An administratively assigned name for this managed node. By convention, this is the node's fully qualified domain name. If the name is unknown, the value is the zero-length string. Modify using TL1. |
sysLocation |
DisplayString (SIZE (0..255)) |
read-write |
The physical location of this node (for example, “telephone closet, 3rd floor'”. If the location is unknown, the value is the zero-length string. This can be modified to Longitude and Latitude, separated by a colon. |
ifAdminStatus |
INTEGER up(1), down(2), testmode(3) |
read-write |
The desired state of the interface. The testing (3) state indicates that no operational packets can be passed. When a managed system initializes, all interfaces start in the down (2) state. As a result of either explicit management action or configuration information retained by the managed system, ifAdminStatus is then changed to either the up (1) or testing (3) state (or remains in the down (2) state). This can be modified to write up (1) only. |
10.4.1 CERENT-15216-EDFA-GENERIC-MIB
The CERENT-15216-EDFA-GENERIC-MIB is used to set or get ONS 15216 EDFA3 configuration data and operation modes as well as management and performance information. The tree structure of the MIB is shown as Figure 10-3. When there is a plus sign (+) to the left of an entry in this tree structure, the tree can be expanded to reveal branches of the tree as shown in Figure 10-4.
Figure 10-3 CERENT-15216-EDFA-GENERIC-MIB Generic Structure
Figure 10-4 Cerent Products Main Groups and Tables
10.4.2 cerent15216EdfaGenericGeneralGroup Table
The cerent15216EdfaGenericGroup table ( Table 10-4 ) is used to hold generic information.
Table 10-4 cerent15216EdfaGenericGeneralGroup Table
|
|
|
|
|
cerent15216EdfaGenericEnableNotification |
TruthValue |
read/write |
By setting this object to enable/ disable, the management station can turn the notification generation from the device to ON or OFF. |
cerent15216EdfaGenericEnableSetRequestProcessing |
TruthValue |
read only |
This object indicates whether the device can be provisioned through the SNMP interface. If set to disable, the device will reject all SNMP set requests. This object cannot be provisioned through the SNMP interface for security reasons. |
cerent15216EdfaGenericNodeTime |
DateAndTime |
read/write |
The wall clock time at the device. |
cerent15216EdfaGenericSentNotifications |
Counter32 |
read only |
A count of SNMPv1 plus SNMPv2 notifications sent out by the agent. The count resets to zero after a cold/warm start. The NMS should use this to detect loss of communication to the ONS 15216 EDFA3. |
cerent15216EdfaGenericIpAddress |
IpAddress |
read/write |
The IP address of the ONS 15216 EDFA3. |
cerent15216EdfaGenericIpNetMask |
IpAddress |
read/write |
The network mask used by the ONS 15216 EDFA3. |
cerent15216EdfaGenericIpDefaultGateway |
IpAddress |
read/write |
The default gateway used by the ONS 15216 EDFA3. |
cerent15216EdfaGenericCleiCode |
OCTET STRING (SIZE (0..10)) |
read-only |
The CLEI code assigned to the ONS 15216 EDFA3. |
10.4.3 cerent15216EdfaGenericSoftware Table
The cerent15216EdfaGenericSoftware table ( Table 10-5 ) is used to store information about the software.
Table 10-5 cerent15216EdfaGenericSoftware Table
|
Generic Software Variable
|
|
|
|
cerent15216EdfaGenericSoftwareStatus |
INTEGER {active(10),standby(20)} |
read only |
This object indicates the active/ standby status of the software load. |
cerent15216EdfaGenericSoftwareName |
DisplayString |
read only |
The name of the software load file in the FFS. |
cerent15216EdfaGenericSoftwareTimeStamp |
DateAndTime |
read only |
The timestamp that indicates when this software is to be copied to the nonvolatile file system. |
10.4.4 cerent15216EdfaGenericNotifDestn Table
The cerent15216EdfaGenericNotifDestn table ( Table 10-6 ) is used to hold information about generic notifications. Values in the cerent15215EdfaGenericNotifDestn table can be created only through TL1.
Table 10-6 cerent15216EdfaGenericNotifDestn Table
|
Generic Notification Variable
|
|
|
|
cerent15216EdfaGenericNotifDestnIpAddr |
IpAddress |
Not- accessible |
— |
cerent15216EdfaGenericNotifDestnCommName |
OCTET STRING (SIZE (0..64)) |
read-only |
Remote manager community name for security. |
cerent15216EdfaGenericNotifDestnPort |
Integer32 |
read-only |
Remote manager SNMP trap receive port number. The default is 162. The user can set any value above 2000. |
cerent15216EdfaGenericNotifDestnVersion |
INTEGER {snmpV1(10), snmpV2(20), unknown(1) } |
read-only |
The SNMP version that the remote manager will receive. |
cerent15216EdfaGenericNotifDestnStatus |
RowStatus |
read-only |
From SNMPv2-TC:
- 1: active
- 2: notInService
- 3: notReady
- 4: createAndGo
- 5: createAndWait
- 6: destroy
|
10.4.5 cerent15216EdfaGenericStandingCondn Table
The cerent15216EdfaGenericStandingCondn table ( Table 10-7 ) is used to store information about standing conditions.
Table 10-7 cerent15216EdfaGenericStandingCond Table
|
Standing Condition Variable
|
|
|
|
cerent15216EdfaGenericStandingCondnTimeStamp |
DateAndTime |
read-only |
The time the trap occurred. |
cerent15216EdfaGenericStandingCondnType |
OBJECT IDENTIFIER |
read-only |
The Trap and event OID number. |
| cerent15216EdfaGenericStandingCondnState |
CerentNotificationClass |
read-only |
The state of the trap or event. |
| cerent15216EdfaGenericStandingCondnVariableOneOid |
OBJECT IDENTIFIER |
read-only |
Additional OID 1. |
cerent15216EdfaGenericStandingCondnVariableOneValue |
Integer 32 |
read-only |
Additional Value 1. |
cerent15216EdfaGenericStandingCondnVariableTwoOid |
OBJECT IDENTIFIER |
read-only |
Additional OID 2. |
cerent15216EdfaGenericStandingCondnVariableTwoValue |
Integer 32 |
read-only |
Additional Value 2. |
10.4.6 cerent15216EdfaGenericEdfa3Group Table
The cerent15216EdfaGenericEdfa3Group table contains five subgroups. The groups are listed in Table 10-8 . The groups are outlined in Sections 10.4.6.1 through 10.4.6.4 .
Table 10-8 cerent15216EdfaGenericEdfa3Group Tables
|
|
|
cerent15216EdfaGenericEdfa3OpticalGroup |
Contains parameters related to optical input and output lines. |
cerent15216EdfaGenericEdfa3CtlModeGroup |
Used to retrieve and configure the ONS 15216 EDFA3 operational mode. |
cerent15216EdfaGenericEdfa3AlscGroup |
Contains amplifier laser status (ALS) and optical safety remote interlock (OSRI) related objects. |
cerent15216EdfaGenericEdfa3PwrBusGroup |
Contains all power bus related parameters. |
cerent15216EdfaGenericEdfa3MBCGroup |
Contains all temperature and laser current parameters. |
10.4.6.1 cerent15216EdfaGenericEdfa3OpticalGroup
The cerent15216EdfaGenericEdfa3OpticalGroup table ( Table 10-9 ) contains parameters related to optical input and output lines.
Table 10-9 cerent15216EdfaGenericEdfa3OpticalGroup Table
|
|
|
|
|
cerent15216EdfaGenericEdfa3Line1RxPwr |
Integer32 (–600..250) unit 0.1 dBm |
read-only |
Amplifier input power value related to the LINE1RX port. |
cerent15216EdfaGenericEdfa3Line1RxPwrThFailLow |
Integer32 (–490..130) unit 0.1 dBm |
read-write |
Fail low threshold value associated to the input power value related to the LINE1RX port. |
cerent15216EdfaGenericEdfa3Line2TxPwr |
Integer32 (–600..250) unit 0.1 dBm |
read-only |
Mid-stage access output power value related to the LINE2TX port. |
cerent15216EdfaGenericEdfa3Line2RxPwr |
Integer32 (–600..250) unit 0.1 dBm |
read-only |
Mid-stage access input power value related to the LINE2RX port. |
cerent15216EdfaGenericEdfa3Line2RxPwrThFailLow |
Integer32 (–490..150) unit 0.1 dBm |
read-write |
Fail low threshold associated to the input power value related to the port LINE2RX port. |
cerent15216EdfaGenericEdfa3Tilt |
Integer32 (–150..150) unit 0.1 dB |
read-only |
The tilt for all wavelengths. |
cerent15216EdfaGenericEdfa3TiltSetpoint |
Integer32 (–150..150) unit 0.1 dB |
read-write |
The tilt set point for all wavelengths. |
cerent15216EdfaGenericEdfa3TiltOffset |
Integer32 (–200..200) unit 0.1 dB |
read-write |
The tilt set offset for all wavelengths. Used to compensate for possible wavelength dependency of an optical component placed at the output of the amplifier. |
cerent15216EdfaGenericEdfa3DcuLoss |
Integer32 (0..200) unit 0.1 dB |
read-only |
DCULoss measures the insertion loss of the Dispersion Compensating Unit located between stages. |
10.4.6.2 cerent15216EdfaGenericEdfa3CtlModeGroup
The cerent15216EdfaGenericEdfa3CtlModeGroup table ( Table 10-10 ) is used to retrieve and configure the EDFA3 operational mode.
Table 10-10 cerent15216EdfaGenericEdfaCtlModeGroup Table
|
|
|
|
|
cerent15216EdfaGenericEdfa3ControlMode |
Integer {constantOutputPower(1), constantGain(2) } |
read-write |
There are two control modes. (1) Constant Output Power mode: In this mode it is possible to set the EDFA3 LINE1TXPwrSetpoint. (2) Constant Gain mode: In this mode, it is possible to set the GainSetpoint of the whole amplifier. The internal optical module firmware sets the gain of the two stages separately. |
cerent15216EdfaGenericEdfa3Line1TxPwr |
Integer (–600..250) units 0.1 dBm |
read-only |
This is the amplifier output power value related to the LINE1TX port. |
cerent15216EdfaGenericEdfa3Line1TxPwrThDegLow |
Integer32 (–90..150) units 0.1 dBm |
read-write |
Degrade low threshold associated to the amplifier output power value related to the LINE1TX port. The threshold is only valid when amplifier is used in Constant Output Power mode of operation. |
cerent15216EdfaGenericEdfa3Line1TxPwrSetpoint |
Integer (–70..170) units 0.1 dBm |
read-write |
Amplifier output power setpoint value related to the LINE1TX Port. The setpoint object is only valid when the amplifier is used in Constant Output Power mode of operation. |
cerent15216EdfaGenericEdfa3Line1TxPwrThDegHigh |
Integer (–50..190) units 0.1 dBm |
read-write |
Degrade high threshold associated with the amplifier output power value related to the LINE1TX port. The threshold is only valid when the amplifier is used in Constant Output Power mode of operation. |
cerent15216EdfaGenericEdfa3Line1TxPwrThFailLow |
Integer32 (–100..140) units 0.1 dBm |
read-write |
Fail low threshold associated with the output power value related to the LINE1TX port. |
cerent15216EdfaGenericEdfa3PwrOffset |
Integer32 (–200..200) units 0.1 dB |
read-write |
The output power offset is the difference between the output power measured at the output photodiode and the output power in the fiber. The power offset includes power losses due to cabling or inserted attenuators. |
cerent15216EdfaGenericEdfa3Gain |
Integer32 (0..400) units 0.1 dB |
read-only |
Gain value. |
cerent15216EdfaGenericEdfa3GainSetpoint |
Integer32 (50..385) units 0.1 dB |
read-write |
The gain setpoint object is only valid when the amplifier is used in Constant Gain mode of operation. |
cerent15216EdfaGenericEdfa3GainThDegHigh |
Integer32 (0..400) units 0.1 dB |
read-write |
Degrade high threshold associated with the amplifier gain. The threshold is only valid when the amplifier is used in Constant Gain mode of operation. |
cerent15216EdfaGenericEdfa3GainThDegLow |
Integer32 (0..400) units 0.1 dB |
read-write |
Degrade low threshold associated with the amplifier gain. The threshold is only valid when the amplifier is used in Constant Gain mode of operation. |
10.4.6.3 cerent15216EdfaGenericEdfa3AlscGroup
The cerent15216EdfaGenericEdfa3AlscGroup table ( Table 10-11 ) contains ALS and OSRI related objects.
Table 10-11 cerent15216EdfaGenericEdfa3AlscGroup Table
|
|
|
|
|
cerent15216EdfaGenericEdfa3AmpLaserStatus |
INTEGER { off(1), on(2), automaticPwrReductionMode(3) } |
read-only |
ALS. There are three possible states.
- On: The two EDFA3 lasers are on.
- APR: The two lasers are in the Automatic Power Reduction state.
- Off: The two lasers are off.
|
cerent15216EdfaGenericEdfa3Osri |
INTEGER {off(1), on(2) } |
read-write |
OSRI. There are two possible states.
- On: The lasers remain off (that is, it locks the lasers switch on).
- Off: Default. No lock.
|
10.4.6.4 cerent15216EdfaGenericEdfa3PwrBusGroup
Table 10-12 describes the variable, syntax, maximum access and description for entries in the cernet15216EdfaGenericEdfa3PwrBus group.
Table 10-12 cernet15216EdfaGenericEdfa3PwrBus Group
|
|
|
|
|
cerent15216EdfaGenericEdfa3PwrBusMode |
Integer { simplex (1), duplex (2) } |
read-write |
Simplex mode requires power only to Bus A. Duplex mode requires power to both Bus A and Bus B. |
cerent15216EdfaGenericEdfa3PwrBusAvoltage |
Integer (0–9999) |
read-only |
cerent15216EdfaGenericEdfa3PwrBus |
Integer (0–9999) |
read-only |
cerent15216EdfaGenericEdfa3PwrBus |
Integer (0–470) |
read-write |
cerent15216EdfaGenericEdfa3PwrBus |
Integer (490–700) |
read-write |
10.4.7 cerent15216EdfaGenericEventProfileTable
The cerent15216EdfaGenericEventProfileTable ( Table 10-13 ) is used to retrieve and configure the EDFA3 generic event profile.
Table 10-13 cerent15216EdfaGenericEventProfileTable
|
|
|
|
cerent15216EdfaGenericEventProfileIndex |
Integer32 (1–511) |
OID of the events index from 1 to 27. |
cerent15216EdfaGenericEventProfileEvent |
Object identifier |
OID of the event with a profile represented in this row. |
cerent15216EdfaGenericEventProfileState |
CerentNotificationClass |
Indicates the class of the event being sent out. Possible values are:
- notReported: Condition not reported as a trap.
- administrative: Informational trap (for example, IETF trap).
- notAlarmedNonServiceAffecting: Nonalarmable event that is not service affecting.
- notAlarmedServiceAffecting: Nonalarmable event that is service affecting.
- cleared: This alarm has been cleared.
- minorNonServiceAffectin: Minor and NSA
- majorNonServiceAffecting: Major and NSA
- criticalNonServiceAffecting: Critical and NSA
- minorServiceAffecting: Minor and SA
- majorServiceAffecting: Major and SA
- criticalServiceAffecting: Critical and SA
- other
|
cerent15216EdfaGenericEventProfileEventInhibit |
TruthValue |
When the value of this object is false, the event is dispatched as specified in the MIB module. When the value of this object is true, dispatch of this event is inhibited. The default value is false. |
10.4.8 GenericEdfa3MiscGroup
The GenericEdfa3MiscGroup ( Table 10-14 ) contains the case temperature thresholds.
Table 10-14 GenericEdfa3MiscGroup
|
|
|
|
|
|
CaseTempMax |
60...100 |
65 degrees C |
RW |
Maximum allowable case temperature threshold |
CaseTempMin |
–10...30 |
–5 degrees C |
RW |
Minimum allowable case temperature threshold |
Case Temperature |
–100...150 |
— |
R |
Case temperature |
Fiber Temperature |
–100...150 |
— |
R |
Fiber temperature |
Pump One Temperature |
–100...150 |
— |
R |
Pump 1 temperature |
Pump Two Temperature |
–100...150 |
— |
R |
Pump 2 temperature |
Laser 1 Bias |
0...1500 |
— |
R |
Laser 1 bias |
Laser 2 Bias |
0...1500 |
— |
R |
Laser 2 bias |
VOA |
–100...100 |
— |
R |
VOA value |
10.4.9 GenericOprnsGroup
Table 10-15 lists the variables, syntax, maximum access, and variable descriptions for the cerent15216EdfaGenericOprns Group.
Table 10-15 cerent15216EdfaGenericOprns Group
|
|
|
|
|
cerent15216EdfaGenericOprnsMode |
INTEGER {idle(1), rebooting(2), applyingCutover(3), downloading(4), savingFile(5)—to remote location from node, restoringFile(6)— from remote location to node} |
read-write |
When the remote location and the file names are provisioned, setting this value to appropriate mode will commence the selected operation. ApplyingCutover(3) will download(4) the standby file first, then excise cutover(3) |
cerent15216EdfaGenericOprnsOwner |
DisplayString |
read-write |
The management station that intends to commence an operation should set this object to an unique string as the first step. As soon as the operation is complete, the management station should set this back to a null string. This enables multiple management stations to coordinate their operations on this device among themselves |
cerent15216EdfaGenericOprnsSrcFileLoc |
DisplayString |
read-write |
The fully qualified file name used as the source file in transfer operations. The object is used to specify userid, password, the server IP address (or hostname), and the name of the software file including the full directory path. The format of the data is identical to what is used by HTTP browsers for FTP operations (for example, ftp://loginname:password@ ftpserverIPaddress.com/home/directory/filename). Refer to appropriate documentation for more details. The following options are available: 4: Download the system and get the file (filename) from the directory of the outside ftp server directly store into standby position. 5: (File save) System puts file from the directory /fd1 named from agent file system cerent15216EdfaGenericOprnsDestFileLoc to outside ftp server directory with name from cerent15216EdfaGenericOprnsDestFileLoc. 6: (Restore) Agent system gets file as download (4) but stores it on /fd1as name in cerent15216EdfaGenericOprnsDestFileLoc. |
cerent15216EdfaGenericOprnsDestFileLoc |
DisplayString |
read-write |
The fully qualified file name used as the destination file in the transfer operations. The object is used to specify the name of the software file including the full directory path, for example, /fd1/destname where the directory fd1 is the node where the file should be copied and destname is the name of the file being copied. |
cerent15216EdfaGenericOprnsResult |
INTEGER {none(1), success(10), connectionTime dOut(20), fileReadError(30), fileWriteError(40), noStandbySoftw are(50) } |
read only |
This object indicates the end result of the operation. When any of the following objects are changed, the value of this object is reset to none by the SNMP agent. cerent15216EdfaGenericOprnsSrcfileLoc cerent15216EdfaGenericOprnsmode cerent15216EdfaGenericOprnsowner cerent15216EdfaGenericOprnsDestfileLoc As soon as the operation is completed, the resulting status is reflected in this object. |
10.5 SNMP Traps
Traps are asynchronous notifications sent from the ONS 15216 EDFA3 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.
The ONS 15216 EDFA3 can receive SNMP requests from a number of SNMP managers and can send traps to ten trap receivers. The ONS 15216 EDFA3 generates all alarms and events as SNMP traps which can be sent to a maximum of ten different managers (including ten different IP addresses).
The ONS 15216 EDFA3 generates traps containing an object ID that uniquely identifies the alarm. An entity identifier uniquely identifies the entity that generated the alarm. The traps give the severity of the alarm (critical, major, minor, event, etc.) and indicate whether the alarm is service affecting or non-service affecting. The traps also contain a date/time stamp that shows the date and time when the alarm occurred. The ONS 15216 EDFA3 also generates a trap for each alarm when the alarm condition clears.
Table 10-16 shows the Notification Type and the MIB object for each event notification.
Table 10-16 Notification Types and the MIB Event Notification Objects
|
|
|
|
|
Additional Info (MIB Object)
|
cerent15216EdfaGenericEdfa3PwrAlarmBusA |
MN |
NSA |
Power BusA Alarm |
cerent15216EdfaGenericEdfa3PwrBusAvoltage |
cerent15216EdfaGenericEdfa3PwrAlarmBusB |
MN |
NSA |
Power BusB Alarm |
cerent15216EdfaGenericEdfa3PwrBusBvoltage |
cerent15216EdfaGenericEdfa3FreeMemoryOnSystemVeryLow |
MN |
NSA |
Exceeding Memory Capacity |
— |
cerent15216EdfaGenericEdfa3FFSCapacityVeryLow |
MN |
NSA |
Exceeding FFS Capacity |
— |
cerent15216EdfaGenericEdfa3EqptFailure |
CR |
SA |
Equipment Failure |
— |
cerent15216EdfaGenericEdfa3ModuleCommFailure |
MJ |
NSA |
Module Communication Failure |
— |
cerent15216EdfaGenericEdfa3CaseTempOutOfRange |
MN |
NSA |
Case Temperature Out Of Range |
cerent15216EdfaGenericEdfa3CaseTemperature |
cerent15216EdfaGenericEdfa3FiberTempOutOfRange |
MN |
NSA |
Fiber Temperature Out Of Range |
cerent15216EdfaGenericEdfa3FiberTemperature |
cerent15216EdfaGenericEdfa3ExcessivePumpOneTemperature |
MN |
NSA |
Excessive Pump 1 Temperature |
cerent15216EdfaGenericEdfa3PumpOneTemperature |
cerent15216EdfaGenericEdfa3LaserBiasOneDegrade |
MN |
NSA |
Laser Bias 1 Degrade |
cerent15216EdfaGenericEdfa3LaserBiasOne |
cerent15216EdfaGenericEdfa3LaserBiasOneFail |
MJ |
NSA |
Laser Bias 1 Fail |
cerent15216EdfaGenericEdfa3LaserBiasOne |
cerent15216EdfaGenericEdfa3ExcessivePumpTwoTemperature |
MN |
NSA |
Excessive Pump 2 Temperature |
cerent15216EdfaGenericEdfa3PumpTwoTemperature |
cerent15216EdfaGenericEdfa3LaserBiasTwoDegrade |
MN |
NSA |
Laser Bias 2 Degrade |
cerent15216EdfaGenericEdfa3LaserBiasTwo |
cerent15216EdfaGenericEdfa3LaserBiasTwoFail |
MJ |
NSA |
Laser Bias 2 Fail |
cerent15216EdfaGenericEdfa3LaserBiasTwo |
cerent15216EdfaGenericEdfa3PwrFailureLowLine1Rx |
CR |
SA |
Power Fail Low LINE1RX Port |
cerent15216EdfaGenericEdfa3Line1RxPwr cerent15216EdfaGenericEdfa3Line1RxPwrThFailLow |
cerent15216EdfaGenericEdfa3GainDegradeHigh |
MN |
NSA |
Gain Degrade High |
cerent15216EdfaGenericEdfa3Gain cerent15216EdfaGenericEdfa3GainThDegHigh |
cerent15216EdfaGenericEdfa3GainDegradeLow |
MN |
NSA |
Gain Degrade Low |
cerent15216EdfaGenericEdfa3Gain cerent15216EdfaGenericEdfa3GainThDegLow |
cerent15216EdfaGenericEdfa3PwrFailLowLine1Tx |
CR |
SA |
Power Fail LINE1TX Port |
cerent15216EdfaGenericEdfa3Line1TxPw cerent15216EdfaGenericEdfa3Line1TxPwrThFailLow |
cerent15216EdfaGenericEdfa3PwrDegradeLowLine1Tx |
MN |
NSA |
Power Degrade Low LINE1TX Port |
cerent15216EdfaGenericEdfa3Line1TxPw cerent15216EdfaGenericEdfa3Line1TxPwrThDegHigh |
cerent15216EdfaGenericEdfa3PwrDegradeHighLine1Tx |
MN |
NSA |
Power Degrade High LINE1TX Port |
cerent15216EdfaGenericEdfa3Line1TxPw cerent15216EdfaGenericEdfa3Line1TxPwrThDegHigh |
cerent15216EdfaGenericEdfa3PwrFailLowLine2Rx |
CR |
SA |
Power Fail Low LINE2RX Port |
cerent15216EdfaGenericEdfa3Line2RxPwr cerent15216EdfaGenericEdfa3Line2RxPwrThFailLow |
cerent15216EdfaGenericEdfa3VoaDegradeLow |
MN |
NSA |
VOA Degrade Low |
cerent15216EdfaGenericEdfa3VOA |
cerent15216EdfaGenericEdfa3VoaDegradeHigh |
MN |
NSA |
VOA Degrade High |
cerent15216EdfaGenericEdfa3VOA |
cerent15216EdfaGenericEdfa3VoaFailHigh |
CR |
SA |
VOA Fail High |
cerent15216EdfaGenericEdfa3VOA |
cerent15216EdfaGenericEdfa3DataIntegrityFault |
MJ |
SA |
Data Integrity Fault |
— |
cerent15216EdfaGenericBackupRestoreInProgress |
MN |
NSA |
BackUp Restore In Progress |
— |
Table 10-17 shows the Notification Type and the MIB object for each alarm notification.
Table 10-17 Notification Type and the MIB Object for Each Alarm Notification
|
Notification Type/Object Identity
|
|
|
|
cerent15216EdfaGenericEdfa3ControlModeChanged |
NA |
Control Mode Changed |
cerent15216EdfaGenericEdfa3ControlMode |
cerent15216EdfaGenericEdfa3GainSetpointChanged |
NA |
Gain Setpoint Changed |
cerent15216EdfaGenericEdfa3GainSetpoint |
cerent15216EdfaGenericEdfa3GainDegradeLowThresholdChanged |
NA |
Gain Degrade Low Threshold Changed |
cerent15216EdfaGenericEdfa3GainThDegLow |
cerent15216EdfaGenericEdfa3GainDegradeHighThresholdChanged |
NA |
Gain Degrade High Threshold Changed |
cerent15216EdfaGenericEdfa3GainThDegHigh |
cerent15216EdfaGenericEdfa3OutputPwrOffsetChanged |
NA |
Output Power Offset Changed |
cerent15216EdfaGenericEdfa3PwrOffset |
cerent15216EdfaGenericEdfa3PwrsetpointChangedLine1Tx |
NA |
Power Setpoint Changed Line1 Tx |
cerent15216EdfaGenericEdfa3Line1TxPwrSetpoint |
cerent15216EdfaGenericEdfa3PwrDegradeLowThresholdChangedLine1Tx |
NA |
Power Degrade Low Threshold Changed Line1 Tx |
cerent15216EdfaGenericEdfa3Line1TxPwrThDegLow |
cerent15216EdfaGenericEdfa3PwrDegradeHighThresholdChangedLine1Tx |
NA |
Power Degrade High Threshold Changed Line1 Tx |
cerent15216EdfaGenericEdfa3Line1TxPwrThDegHigh |
cerent15216EdfaGenericEdfa3PwrFailLowThresholdChangedLine1Tx |
NA |
Power Fail Low Threshold Changed Line1 Tx |
cerent15216EdfaGenericEdfa3Line1TxPwrThFailLow |
cerent15216EdfaGenericEdfa3PwrFailLowThresholdChangedLine1Rx |
NA |
Power Fail Low Threshold Changed Line1 Rx |
cerent15216EdfaGenericEdfa3Line1RxPwrThFailLow |
cerent15216EdfaGenericEdfa3PwrFailLowThresholdChangedLine2Rx |
NA |
Power Fail Low Threshold Changed Line2 Rx |
cerent15216EdfaGenericEdfa3Line2RxPwrThFailLow |
cerent15216EdfaGenericEdfa3TiltSetpointChanged |
NA |
Tilt Setpoint Changed |
cerent15216EdfaGenericEdfa3TiltSetpoint |
cerent15216EdfaGenericEdfa3TiltOffsetChanged |
NA |
Tilt Offset Changed |
cerent15216EdfaGenericEdfa3TiltOffset |
cerent15216EdfaGenericEdfa3LaserStatusChanged |
NA |
Laser Status Changed |
cerent15216EdfaGenericEdfa3AmpLaserStatus |
cerent15216EdfaGenericEdfa3OsriChanged |
NA |
OSRI Changed |
cerent15216EdfaGenericEdfa3Osri |
cerent15216EdfaGenericResetAfterCutover |
NA |
Reset After Cutover |
— |
cerent15216EdfaGenericSoftwareReset |
NA |
Software Reset |
— |
cerent15216EdfaGenericSoftwareDownloadInProgress |
NA |
Download in Progress |
— |
cerent15216EdfaGenericSoftwareDownloadComplete |
NA |
Download Completed |
— |
cerent15216EdfaGenericSoftwareDownloadFailed |
NA |
Download Failure |
— |
cerent15216EdfaGenericEventProfileChanged |
NA |
Severity Changed |
cerent15216EdfaGenericEventProfileEvent, cerent15216EdfaGenericEventProfileState |
cerent15216EdfaGenericEdfa3PwrBusVoltageMaxChanged |
NA |
Power Bus Max (voltage) Changed |
cerent15216EdfaGenericEdfa3PwrBusVoltageMax |
cerent15216EdfaGenericEdfa3PwrBusVoltageMinChanged |
NA |
Power Bus Min (voltage) Changed |
cerent15216EdfaGenericEdfa3PwrBusVoltageMin |
cerent15216EdfaGenericEdfa3CaseTempMaxChanged |
NA |
Max Case Temperature Changed |
cerent15216EdfaGenericEdfa3CaseTempMax |
cerent15216EdfaGenericEdfa3CaseTempMinChanged |
NA |
Min Case Temperature Changed |
cerent15216EdfaGenericEdfa3CaseTempMin |
Each SNMP trap contains eleven variable bindings listed in Table 10-18 and Table 10-19 for the ONS 15216 EDFA3.
Table 10-18 Standard SNMP Trap Variable Bindings for ONS 15216 EDFA3
|
|
|
|
coldStart |
RFC1907-MIB |
Agent up, cold start |
warmStart |
RFC1907-MIB |
Agent up, warm start |
authenticationFailure |
RFC1907-MIB |
Community string does not match |
entConfigChange |
RFC2737/ENTITY-MIB |
The entLastChangeTime value has changed |
Table 10-19 TL1 (Other Management) and SNMP Trap Variable Bindings for ONS 15216 EDFA3
|
|
|
PWRBUSA |
cerent15216EdfaGenericEdfa3PwrAlarmBusA |
PWRBUSB |
cerent15216EdfaGenericEdfa3PwrAlarmBusB |
MEMLOW |
cerent15216EdfaGenericEdfa3FreeMemoryOnSystemVeryLow |
FFSFULL |
cerent15216EdfaGenericEdfa3FFSCapacityVeryLow |
EQPT |
cerent15216EdfaGenericEdfa3EqptFailure |
COMFAIL |
cerent15216EdfaGenericEdfa3ModuleCommFailure |
CTMP |
cerent15216EdfaGenericEdfa3CaseTempOutOfRange |
FTMP |
cerent15216EdfaGenericEdfa3FiberTempOutOfRange |
L1TMP |
cerent15216EdfaGenericEdfa3ExcessivePumpOneTemperature |
L1BIASD |
cerent15216EdfaGenericEdfa3LaserBiasOneDegrade |
L1BIASF |
cerent15216EdfaGenericEdfa3LaserBiasOneFail |
L2TMP |
cerent15216EdfaGenericEdfa3ExcessivePumpTwoTemperature |
L2BIASD |
cerent15216EdfaGenericEdfa3LaserBiasTwoDegrade |
L2BIASF |
cerent15216EdfaGenericEdfa3LaserBiasTwoFail |
LINE1RXPWRFL |
cerent15216EdfaGenericEdfa3PwrFailureLowLine1Rx |
GAINDH |
cerent15216EdfaGenericEdfa3GainDegradeHigh |
GAINDL |
cerent15216EdfaGenericEdfa3GainDegradeLow |
LINE1TXPWRFL |
cerent15216EdfaGenericEdfa3PwrFailLowLine1Tx |
LINE1TXPWRDH |
cerent15216EdfaGenericEdfa3PwrDegradeHighLine1Tx |
LINE1TXPWRDL |
cerent15216EdfaGenericEdfa3PwrDegradeLowLine1Tx |
LINE2RXPWRFL |
cerent15216EdfaGenericEdfa3PwrFailLowLine2Rx |
VOADH |
cerent15216EdfaGenericEdfa3VoaDegradeHigh |
VOADL |
cerent15216EdfaGenericEdfa3VoaDegradeLow |
VOAFH |
cerent15216EdfaGenericEdfa3VoaFailHigh |
DATAFLT |
cerent15216EdfaGenericEdfa3DataIntegrityFault |
Table 10-20 reports the mapping between the TL1 and SNMP events.
Table 10-20 TL1 (other management) and SNMP Events Variable Bindings for ONS 15216 EDFA3
|
|
|
CTRLMODE |
cerent15216EdfaGenericEdfa3ControlModeChanged |
GAINCHGD |
cerent15216EdfaGenericEdfa3GainSetpointChanged |
GAINTHDLCHGD |
cerent15216EdfaGenericEdfa3GainDegradeLowThresholdChanged |
GAINTHDHCHGD |
cerent15216EdfaGenericEdfa3GainDegradeHighThresholdChanged |
OPOFFSET |
cerent15216EdfaGenericEdfa3OutputPwrOffsetChanged |
LINE1TXPWRCHGD |
cerent15216EdfaGenericEdfa3PwrsetpointChangedLine1Tx |
LINE1TXPWRTHDLCHGD |
cerent15216EdfaGenericEdfa3PwrDegradeLowThresholdChangedLine1Tx |
LINE1TXPWRTHDHCHGD |
cerent15216EdfaGenericEdfa3PwrDegradeHighThresholdChangedLine1Tx |
LINE1TXPWRTHFLCHGD |
cerent15216EdfaGenericEdfa3PwrFailLowThresholdChangedLine1Tx |
LINE1RXPWRTHFLCHGD |
cerent15216EdfaGenericEdfa3PwrFailLowThresholdChangedLine1Rx |
LINE2RXPWRTHFLCHGD |
cerent15216EdfaGenericEdfa3PwrFailLowThresholdChangedLine2Rx |
TILTCHGD |
cerent15216EdfaGenericEdfa3TiltSetpointChanged |
TILTOFFSETCHGD |
cerent15216EdfaGenericEdfa3TiltOffsetChanged |
LASERCHGD |
cerent15216EdfaGenericEdfa3LaserStatusChanged |
OSRICHGD |
cerent15216EdfaGenericEdfa3OsriChanged |
CUTOVERRESET |
cerent15216EdfaGenericResetAfterCutover |
SOFTWARERESET |
cerent15216EdfaGenericSoftwareReset |
IP (File Transfer Status) |
cerent15216EdfaGenericSoftwareDownloadInProgress |
COMPLD (File Transfer Status) SUCCES (File Transfer Result) |
cerent15216EdfaGenericSoftwareDownloadComplete |
COMPLD (File Transfer Status) FAILURE (File Transfer Result) |
cerent15216EdfaGenericSoftwareDownloadFailed |
All sent traps are saved to the log file for operator viewing. The log file stores up to 1024 traps and events. The SNMP agent will save or clear some important traps and event statuses for the manager of system operations.
10.6 SNMP Generic Objects
The SNMP agent provides the following functionality:
- Retrieve and configure ONS 15216 EDFA3 parameters ( Table 10-21 )
- Retrieve inventory parameter ( Table 10-22 )
Table 10-21 Retrieve and Configure Parameters
|
|
|
|
|
0.0.0.0 |
RW |
IP Address |
— |
255.255.255.255 |
RW |
IP Mask |
— |
0.0.0.0 |
RW |
Default Gateway |
— |
— |
R |
Mac Address |
— |
Null string |
RW |
Host Name |
According to sysName (RFC1213) size. |
Null string |
R |
Description |
According to sysDescr (RFC1213). The default value is ONS 15216 EDFA3. |
Null string |
RW |
Latitude |
A string with a maximum length of 15 characters. |
Null string |
RW |
Longitude |
A string with a maximum length of 15 characters. |
Table 10-22 ONS 15216 EDFA3 Inventory Parameters
|
|
|
|
|
Null string |
R |
CLEI code |
A string with a maximum length of 10 characters. |
Null string |
R |
Hardware revision number |
A string with a maximum length of 10 characters. |
Null string |
R |
Firmware revision number |
A string with a maximum length of 10 characters. |
Null string |
R |
Software revision number |
A string with a maximum length of 10 characters. |
Null string |
R |
Software update date |
A string with a maximum length of 20 characters. The format is <date> <time> (for example, 2003-03-13 05:44:06). |
Null string |
R |
System serial number |
A string with a maximum length of 20 characters. |
Null string |
R |
Manufacturer name |
A string with a maximum length of 15 characters. |
Null string |
R |
Model name |
A string with a maximum length of 15 characters. |
10.7 SNMP Specific Objects
The following objects are used to configure the ONS 15216 EDFA3 optical and the Power Bus Voltage parameters.
10.7.1 OpticalParamCfgGroup
The OpticalParamCfgGroup ( Table 10-23 ) is used to retrieve and configure the optical parameters.
Table 10-23 OpticalParamCfgGroup
|
|
|
|
|
|
LINE1RXPwr |
–60 to 25dBm |
— |
R |
Amplifier input power value related to the LINE1RX Port. |
LINE1RXPwrTHFailLow |
–49 to 13dBm |
10 dBm |
RW |
Fail low threshold associated with the input power value related to the LINE1RX port. |
LINE2TXPwr |
–60 to 25dBm |
— |
R |
Mid-stage access output power value related to the LINE2TX port. |
LINE2RXPwr |
–60 to 25dBm |
— |
R |
Mid-stage access input power value related to the LINE2RX port. |
LINE2RXPwrTHFailLow |
–49 to 15dBm |
–33 dBm |
RW |
Fail low threshold associated with the mid-stage access input power related to the LINE2RX port. |
Tilt |
–15 to 15dB |
— |
R |
Tilt value. |
TiltSetpoint |
–15 to 15dB |
0 dB |
RW |
Tilt setpoint. |
TiltOffset |
–20 to 20dB |
0 dB |
RW |
Tilt offset, used to compensate for possible wavelength dependency of optical component placed at the output of the amplifier. |
DCULoss |
0 to 20dB |
— |
R |
Measures the insertion loss of the DCU inserted in the mid-stage. |
10.7.2 ControlModeCfgGroup
The ControlModeCfgGroup ( Table 10-24 ) is used to retrieve and configure the EDFA3 operational mode:
- Constant Output Power mode: The EDFA3 LINE1TXPwrSetpoint can be set.
- Constant Gain mode: The gain setpoint of the entire amplifier can be set.
The internal optical module firmware sets the gain of the two stages separately.
Table 10-24 ControlModeCfgGroup
|
|
|
|
|
|
ControlMode |
Constant Output Power, Constant Gain |
Constant Gain |
RW |
Amplifier control mode. |
LINE1TXPwr |
–60 to 25 dBm |
— |
R |
Amplifier output power value related to the LINE1TX port. |
LINE1TXPwrSetpoint |
–7 to 17 dBm |
10 dBm |
RW |
Amplifier output power setpoint value related to the LINE1TX port. The setpoint object is only valid when the amplifier is used in Constant Output Power mode of operation. The LINE1TXPwrSetpoint must also be set to be compatible with the setting of the LINE1TXPwrTHFailLow threshold in accordance with the following relationship: (LINE1TXPwrTHFailLow + 3dBm) <= LINE1TXPwrSetpoint <= (+17dBm)
This means that the LINE1TXPwrSetpoint must always be set at least 3dBm above the value set for the LINE1TXPwrTHFailLow threshold.(but not above +17dBm) |
LINE1TXPwrTHDegHigh |
–5 to 19 dBm |
LINE1TXPwrSetpoint + 2 dB |
RW |
Degrade high threshold value associated with the amplifier output power value related to the LINE1TX port. The threshold is only valid when the amplifier is used in Constant Output Power mode of operation. |
LINE1TXPwrTHDegLow |
–9 to 15 dBm |
LINE1TXPwrSetpoint – 2 dB |
RW |
Degrade low threshold associated with the amplifier output power value related to the LINE1TX port. The threshold is only valid when the amplifier is used in Constant Output Power mode of operation. |
LINE1TXPwrTHFailLow |
–10 to 14 dBm |
–6 |
RW |
Fail low threshold associated with the output power value related to the LINE1TX port. The acceptable setting range for the LINE1TXPwrTHFailLow threshold varies as a function of the LINE1TXPwrSetpoint with the following relationship: (-10dBm) <= LINE1TXPwrTHFailLow <= (LINE1TXPwrSetpoint - 3dBm).
Therefore the LINE1TXPwrTHFailLow threshold must always be set at least 3dBm below the set point of LINE1TXPwrSetpoint
(but not below -10dBm). For example, the maximum 14dBm LINE1TXPwrTHFailLow threshold can only be set when the set point for LINE1TXPwrSetpoint is also set to it's maximum value of 17dBm. |
PowerOffset |
–20 to 20 dB |
0 |
RW |
Output power offset is the difference between the output power measured at output photodiode and the output power in the fiber. The power offset includes power losses due to cabling or inserted attenuators. |
Gain |
0 to 40 dB |
— |
R |
Gain value. |
GainSetpoint |
5 to 38.5 dB |
21 dB |
RW |
Gain setpoint. The setpoint object is valid only when the amplifier is used in Constant Gain mode of operation. |
GainTHDegHigh |
0 to 40 dB |
GainSetpoint + 2dB |
RW |
Degrade high threshold associated with the amplifier gain.The threshold is only valid when the amplifier is used in Constant Gain mode of operation. |
GainTHDegLow |
0 to 40 dB |
GainSetpoint – 2dB |
RW |
Degrade low threshold associated to the amplifier gain. The threshold is only valid when the amplifier is used in Constant Gain mode of operation. |
10.7.3 ALSCfgGroup
The ALSCfgGroup ( Table 10-25 ) is used to configure the ALS parameter.
Table 10-25 ALSCfgGroup
|
|
|
|
|
|
LaserStatus3 |
On, APR, Off |
Off |
R |
ALS. There are three possible states.
- On: The two EDFA3 lasers are on.
- APR: The two lasers are in the Automatic Power Reduction state.
- Off: The two lasers are off.
|
OSRI |
On, Off |
Off |
RW |
OSRI. There are two possible states.
- On: The lasers remain off (that is, the laser switch is locked on).
- Off: Default. No lock.
|
10.7.4 PwrBusVoltageCfgGroup
The PwrBusVoltageCfgGroup is used to configure the power bus parameter.
Note If both PWRA and PWRB are active, it is not possible to change from duplex to simplex mode.
Feedback