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:
- 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.
- From the View selector, select Device View.
The functionalities that you can configure in this view are displayed.
- 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.
- From the Tasks pane, select Device Management > View
Physical Inventory.
An image of the deviceand associated hardware components is displayed on the right pane.
- 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.
- Click the Status/Config tab at the bottom of
the dialog box.
The configuration settings that pertain to the optical interface are displayed.
- In the Port State section, do the following:
The OperStatus field displays the operational status of the optical interface. Possible values are Fault or Normal.
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
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)
- In the Loopbacks section, do the following:
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.
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
- In the Config section, do the following:
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.
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.
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
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.
The Rx Power field displays the laser received optical power, in mW and dBm.
- 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.