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    Configuring and Managing OTN Port Details of MX Series and PTX Series Routers for Easy Administration

    Instead of using Junos OS CLI statements and operational commands to configure the OTN port settings and view the configured parameters, you can view an image of the OTN port using Connectivity Services Director to obtain an intuitive and high-level understanding of the settings and alarms. This view enables you to modify the OTN port settings to suit your network deployment needs in a simplified and optimal manner. Because the important OTN port settings can be configured alongside the visual representation of the entire chassis that is displayed, this method of managing the OTN port settings provides a consolidated and cohesive interface for easy administration of the network.

    You can perform the following tasks in this dialog box:

    • View the optical interface specifications that are currently applied on the device, such as wavelength and power

    • Modify the existing parameters of the optical port to suit your network needs or resolve any alarms caused by certain interface settings

    To configure the full C-band International Telecommunication Union (ITU)-Grid tunable optics for 10-Gigabit Ethernet or 100-Gigabit Ethernet dense wavelength- division multiplexing (DWDM) interfaces:

    1. From the Junos Space user interface, click the Build icon on the Connectivity Services Director banner.

      The workspaces that are applicable to Build mode are displayed on the Tasks pane.

    2. From the View selector, select Device View.

      The functionalities that you can configure in this view are displayed.

    3. From the Device View pane, click the plus sign (+) next to the My Network tree to expand the tree and select the device for which you want to define the optical port settings.

      The network tree is expanded and the selected device is highlighted.

    4. From the Tasks pane, select Device Management > View Physical Inventory.

      An image of the deviceand associated hardware components is displayed on the right pane.

    5. In the image of the device, select an OTN port or interface—for example, a 100-Gigabit Ethernet OTN PIC installed in a PTX Series router.

      The Optical Port dialog box is displayed. At the lower part of the dialog box, the Optical Port Section pane is expanded and displayed.

    6. Click the Status/Config tab at the bottom of the dialog box.

      The configuration settings that pertain to the optical interface are displayed as shown in Figure 1.

      Figure 1: Optical Port Dialog Box

      Optical Port Dialog Box
    7. In the Port State section, do the following:
      1. The OperStatus field displays the operational status of the optical interface. Possible values are Fault or Normal.

      2. From the AdminState list, specify the administrative status of the interface as enabled or disabled, and click Update at the top of the dialog box to save the changes. Possible values are:

        • IS—In-service with masked alarms disabled

        • IS-MA—In-service with masked alarms enabled

        • OOS—Out-of-service with masked alarms disabled

        • OOS-MA—Out-of-service with masked alarms enabled

      3. The Status field displays any of the following values:

        • LOS (loss of signal)

        • LOF (loss of frame)

        • LOM (loss of multiframe)

        • SSF (server signal failure)

        • TSF (trail signal fail)

    8. In the Loopbacks section, do the following:
      1. From the Line Loopback list, specify whether line-loopback needs to be enabled or disabled, and click Update at the top of the dialog box to save the changes. When configured in line loopback mode, the router never receives data from the network. A line loopback places an interface in external loopback state.

        Instead of transmitting the signal toward the far-end device, the line loopback sends the signal back to the originating router. If the originating router receives back its own data link layer packets, you have verified that the problem is beyond the originating router. Next, configure a line loopback farther away from the local router. If this originating router does not receive its own data link layer packets, you can assume the problem is on one of the segments between the local router and the remote router’s interface card. In this case, the next troubleshooting step is to configure a line loopback closer to the local router to find the source of the problem.

      2. From the Local Loopback list, specify whether local-loopback needs to be enabled or disabled, and click Update at the top of the dialog box to save the changes. When you create a local loopback, you create an internal loop on the interface being tested. A local loopback loops the traffic internally on that PIC. A local loopback tests the interconnection of the PIC but does not test the transmit and receive ports. A local loopback enables you to configure a loop without physically connecting the transmit port to the receive port.

        Local loopback is useful for troubleshooting physical PIC errors. Configuring local loopback on an interface allows transmission of packets to the channel service unit (CSU) and then to the circuit toward the far-end device. The interface receives its own transmission, which includes data and timing information, on the local router's PIC. The data received from the CSU is ignored

    9. In the Config section, do the following:
      1. From the Laser Enable field, specify whether the laser on the OTN interface must be enabled or disabled, and click Update at the top of the dialog box to save the changes.

      2. The laser is disabled by default for all OTN interfaces. The Modulation field displays the type of modulation as Dual polarization quadrature phase shift keying (DP-QPSK) modulation.

      3. From the Wavelength list, select the wavelength value, which can be one of the following, and click Update at the top of the dialog box to save the changes. All values are displayed. However, if you configure a value that is not supported by the device, an error message is displayed and the device is not tuned to the specified wavelength.

        • 1528.38—1528.38 nanometers (nm), corresponds to a 50-GHz grid

        • 1528.77—1528.77 nm, corresponds to 50-GHz and 100-GHz grids

        • 1529.16—1529.16 nm, corresponds to a 50-GHz grid

        • 1529.55—1529.55 nm, corresponds to 50-GHz and 100-GHz grids

        • 1529.94—1529.94 nm, corresponds to a 50-GHz grid

        • 1530.33—1530.33 nm, corresponds to 50-GHz and 100-GHz grids

        • 1530.72—1530.72 nm, corresponds to a 50-GHz grid

        • 1531.12—1531.12 nm, corresponds to 50-GHz and 100-GHz grids

        • 1531.51—1531.51 nm, corresponds to a 50-GHz grid

        • 1531.90—1531.90 nm, corresponds to 50-GHz and 100-GHz grids

        • 1532.29—1532.29 nm, corresponds to a 50-GHz grid

        • 1532.68—1532.68 nm, corresponds to 50-GHz and 100-GHz grids

        • 1533.07—1533.07 nm, corresponds to a 50-GHz grid

        • 1533.47—1533.47 nm, corresponds to 50-GHz and 100-GHz grids

        • 1533.86—1533.86 nm, corresponds to a 50-GHz grid

        • 1534.25—1534.25 nm, corresponds to 50-GHz and 100-GHz grids

        • 1534.64—1534.64 nm, corresponds to a 50-GHz grid

        • 1535.04—1535.04 nm, corresponds to 50-GHz and 100-GHz grids

        • 1535.43—1535.43 nm, corresponds to a 50-GHz grid

        • 1535.82—1535.82 nm, corresponds to 50-GHz and 100-GHz grids

        • 1536.22—1536.22 nm, corresponds to a 50-GHz grid

        • 1536.61—1536.61 nm, corresponds to 50-GHz and 100-GHz grids

        • 1537.00—1537.00 nm, corresponds to a 50-GHz grid

        • 1537.40—1537.40 nm, corresponds to 50-GHz and 100-GHz grids

        • 1537.79—1537.79 nm, corresponds to a 50-GHz grid

        • 1538.19—1538.19 nm, corresponds to 50-GHz and 100-GHz grids

        • 1538.58—1538.58 nm, corresponds to a 50-GHz grid

        • 1538.98—1538.98 nm, corresponds to 50-GHz and 100-GHz grids

        • 1539.37—1539.37 nm, corresponds to a 50-GHz grid

        • 1539.77—1539.77 nm, corresponds to 50-GHz and 100-GHz grids

        • 1540.16—1540.16 nm, corresponds to a 50-GHz grid

        • 1540.56—1540.56 nm, corresponds to 50-GHz and 100-GHz grids

        • 1540.95—1540.95 nm, corresponds to a 50-GHz grid

        • 1541.35—1541.35 nm, corresponds to 50-GHz and 100-GHz grids

        • 1541.75—1541.75 nm, corresponds to a 50-GHz grid

        • 1542.14—1542.14 nm, corresponds to 50-GHz and 100-GHz grids

        • 1542.54—1542.54 nm, corresponds to a 50-GHz grid

        • 1542.94—1542.94 nm, corresponds to 50-GHz and 100-GHz grids

        • 1543.33—1543.33 nm, corresponds to a 50-GHz grid

        • 1543.73—1543.73 nm, corresponds to 50-GHz and 100-GHz grids

        • 1544.13—1544.13 nm, corresponds to a 50-GHz grid

        • 1544.53—1544.53 nm, corresponds to 50-GHz and 100-GHz grids

        • 1544.92—1544.92 nm, corresponds to a 50-GHz grid

        • 1545.32—1545.32 nm, corresponds to 50-GHz and 100-GHz grids

        • 1545.72—1545.72 nm, corresponds to a 50-GHz grid

        • 1546.12—1546.12 nm, corresponds to 50-GHz and 100-GHz grids

        • 1546.52—1546.52 nm, corresponds to a 50-GHz grid

        • 1546.92—1546.92 nm, corresponds to 50-GHz and 100-GHz grids

        • 1547.32—1547.32 nm, corresponds to a 50-GHz grid

        • 1547.72—1547.72 nm, corresponds to 50-GHz and 100-GHz grids

        • 1548.11—1548.11 nm, corresponds to a 50-GHz grid

        • 1548.51—1548.51 nm, corresponds to 50-GHz and 100-GHz grids

        • 1548.91—1548.91 nm, corresponds to a 50-GHz grid

        • 1549.32—1549.32 nm, corresponds to 50-GHz and 100-GHz grids

        • 1549.72—1549.72 nm, corresponds to a 50-GHz grid

        • 1550.12—1550.12 nm, corresponds to 50-GHz and 100-GHz grids

        • 1550.52—1550.52 nm, corresponds to a 50-GHz grid

        • 1550.92—1550.92 nm, corresponds to 50-GHz and 100-GHz grids

        • 1551.32—1551.32 nm, corresponds to a 50-GHz grid

        • 1551.72—1551.72 nm, corresponds to 50-GHz and 100-GHz grids

        • 1552.12—1552.12 nm, corresponds to a 50-GHz grid

        • 1552.52—1552.52 nm, corresponds to 50-GHz and 100-GHz grids

        • 1552.93—1552.93 nm, corresponds to a 50-GHz grid

        • 1553.33—1554.33 nm, corresponds to 50-GHz and 100-GHz grids

        • 1553.73—1554.73 nm, corresponds to a 50-GHz grid

        • 1554.13—1554.13 nm, corresponds to 50-GHz and 100-GHz grids

        • 1554.54—1554.54 nm, corresponds to a 50-GHz grid

        • 1554.94—1554.94 nm, corresponds to 50-GHz and 100-GHz grids

        • 1555.34—1555.34 nm, corresponds to a 50-GHz grid

        • 1555.75—1555.75 nm, corresponds to 50-GHz and 100-GHz grids

        • 1556.15—1556.15 nm, corresponds to a 50-GHz grid

        • 1556.55—1556.55 nm, corresponds to 50-GHz and 100-GHz grids

        • 1556.96—1556.96 nm, corresponds to a 50-GHz grid

        • 1557.36—1557.36 nm, corresponds to 50-GHz and 100-GHz grids

        • 1557.77—1557.77 nm, corresponds to a 50-GHz grid

        • 1558.17—1558.17 nm, corresponds to 50-GHz and 100-GHz grids

        • 1558.58—1558.58 nm, corresponds to a 50-GHz grid

        • 1558.98—1558.98 nm, corresponds to 50-GHz and 100-GHz grids

        • 1559.39—1559.39 nm, corresponds to a 50-GHz grid

        • 1559.79—1559.79 nm, corresponds to 50-GHz and 100-GHz grids

        • 1560.20—1560.20 nm, corresponds to a 50-GHz grid

        • 1560.61—1560.61 nm, corresponds to 50-GHz and 100-GHz grids

        • 1561.01—1561.01 nm, corresponds to a 50-GHz grid

        • 1561.42—1561.42 nm, corresponds to 50-GHz and 100-GHz grids

        • 1561.83—1561.83 nm, corresponds to a 50-GHz grid

        • 1562.23—1562.23 nm, corresponds to 50-GHz and 100-GHz grids

        • 1562.64—1562.64 nm, corresponds to a 50-GHz grid

        • 1563.05—1563.05 nm, corresponds to 50-GHz and 100-GHz grids

        • 1563.45—1563.45 nm, corresponds to a 50-GHz grid

        • 1563.86—1563.86 nm, corresponds to 50-GHz and 100-GHz grids

        • 1564.27—1564.27 nm, corresponds to a 50-GHz grid

        • 1564.68—1564.68 nm, corresponds to 50-GHz and 100-GHz grids

        • 1565.09—1565.09 nm, corresponds to a 50-GHz grid

        • 1565.50—1565.50 nm, corresponds to 50-GHz and 100-GHz grids

        • 1565.90—1565.90 nm, corresponds to a 50-GHz grid

        • 1566.31—1566.31 nm, corresponds to 50-GHz and 100-GHz grids

        • 1566.72—1566.72 nm, corresponds to a 50-GHz grid

        • 1567.13—1567.13 nm, corresponds to 50-GHz and 100-GHz grids

        • 1567.54—1567.54 nm, corresponds to a 50-GHz grid

        • 1567.95—1567.95 nm, corresponds to 50-GHz and 100-GHz grids

        • 1568.36—1568.36 nm, corresponds to a 50-GHz grid

        • 1568.77—1568.77 nm, corresponds to 50-GHz and 100-GHz grids

        Table 1 shows configurable wavelengths and the corresponding frequency for each configurable wavelength.

        Table 1: Wavelength-to-Frequency Conversion Matrix

        Wavelength (nm)

        Frequency (THz)

        Wavelength (nm)

        Frequency (THz)

        Wavelength (nm)

        Frequency (THz)

        1528.38

        196.15

        1542.14

        194.40

        1556.15

        192.65

        1528.77

        196.10

        1542.54

        194.35

        1556.55

        192.60

        1529.16

        196.05

        1542.94

        194.30

        1556.96

        192.55

        1529.55

        196.00

        1543.33

        194.25

        1557.36

        192.50

        1529.94

        195.95

        1543.73

        194.20

        1557.77

        192.45

        1530.33

        195.90

        1544.13

        194.15

        1558.17

        192.40

        1530.72

        195.85

        1544.53

        194.10

        1558.58

        192.35

        1531.12

        195.80

        1544.92

        194.05

        1558.98

        192.30

        1531.51

        195.75

        1545.32

        194.00

        1559.39

        192.25

        1531.90

        195.70

        1545.72

        193.95

        1559.79

        192.20

        1532.29

        195.65

        1546.12

        193.90

        1560.20

        192.15

        1532.68

        195.60

        1546.52

        193.85

        1560.61

        192.10

        1533.07

        195.55

        1546.92

        193.80

        1561.01

        192.05

        1533.47

        195.50

        1547.32

        193.75

        1561.42

        192.00

        1533.86

        195.45

        1547.72

        193.70

        1561.83

        191.95

        1534.25

        195.40

        1548.11

        193.65

        1562.23

        191.90

        1534.64

        195.35

        1548.51

        193.60

        1562.64

        191.85

        1535.04

        195.30

        1548.91

        193.55

        1563.05

        191.80

        1535.43

        195.25

        1549.32

        193.50

        1563.45

        191.75

        1535.82

        195.20

        1549.72

        193.45

        1563.86

        191.70

        1536.22

        195.15

        1550.12

        193.40

        1564.27

        191.65

        1536.61

        195.10

        1550.52

        193.35

        1564.68

        191.60

        1537.00

        195.05

        1550.92

        193.30

        1565.09

        191.55

        1537.40

        195.00

        1551.32

        193.25

        1565.50

        191.50

        1537.79

        194.95

        1551.72

        193.20

        1565.90

        191.45

        1538.19

        194.90

        1552.12

        193.15

        1566.31

        191.40

        1538.58

        194.85

        1552.52

        193.10

        1566.72

        191.35

        1538.98

        194.80

        1552.93

        193.05

        1567.13

        191.30

        1539.37

        194.75

        1553.33

        193.00

        1567.54

        191.25

        1539.77

        194.70

        1553.73

        192.95

        1567.95

        191.20

        1540.16

        194.65

        1554.13

        192.90

        1568.36

        191.15

        1540.56

        194.60

        1554.54

        192.85

        1568.77

        191.10

        1540.95

        194.55

        1554.94

        192.80

         

         

        1541.35

        194.50

        1555.34

        192.75

         

         

        1541.75

        194.45

        1555.75

        192.70

         

         

      4. The Tx Power field displays the transmit laser output power (dBm). If you did not specify a value, the default transmit laser output power is –2 dBm.

      5. The Rx Power field displays the laser received optical power, in mW and dBm.

    10. From the PM collection list, specify whether the retrieval and computation of performance management statistics by polling the device must be enabled or not, and click Update to save the changes. If you do not enable the collection of performance monitoring counters and values, you might not be able to measure the performance and the operational status of the services running in your network.

    You can click the Refresh (rotating arrow icon) button at the top of the dialog box to enable the latest settings be retrieved from the device and displayed.

    Modified: 2016-05-10