Viavi NSC-100 User manual

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Network & Service Companion (NSC-100/200)
Network & Service Companion
QUICK CARD
Ethernet Layer 2 Traffic Loopback
This quick card describes how to set the NSC-100 or NSC-200 Network & Service
Companion (NSC) up as a Layer 2 Loopback device for another VIAVI test instrument.
•Mobile Device (Smartphone or Tablet) with VIAVI Mobile TechApp
•Network & Service Companion equipped with the following:
oSoftware release V4.2.19 or greater
oNSC-LOOPBACK-1G option for up to 1 Gigabit Ethernet loopback
oNSC-LOOPBACK-10G option for 10 Gigabit Ethernet loopback
oNSC-OPTICAL ETHERNET for loopback using the SFP port
•Optical Transceiver supporting the line rate to be tested:
oNSC-SFP-ELEC-10G 10G Electrical Ethernet SFP+
oNSC-SFP-ELEC-1-2.5-5-10G 1G, 2.5G, 5G and 10G Electrical Ethernet SFP+
oNSC-SFP-ELEC-AUTO-10G 2.5G, 5G and 10G Auto-neg Electrical Ethernet SFP+
oNSC-SFP-850-1G-10G 1G and 10G Optical Ethernet SFP+ 850 nm SR
oNSC-SFP-1310-1G-10G 1G and 10G Optical Ethernet SFP+ 1310 nm LR
oNSC-SFP-1550-1G-10G 1G and 10G Optical Ethernet SFP+ 1550 nm ER
•Cables to match the optical transceiver and the line under test
•Fiber optic inspection microscope (P5000i or FiberChek Probe)
•Fiber optic cleaning supplies Figure 1: Equipment Requirements
PAIRING THE NSC TO YOUR MOBILE DEVICE
On the Network & Service Companion:
1. Press the Power button to turn on the unit.
The Power indicator will turn solid green when
the NSC is on.
2. Press and hold the Pair button on the NSC
for 3 seconds to enter pairing mode. The blue
Pair indicator blinks.
Figure 2: Front View

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Network & Service Companion (NSC-100/200)
Network & Service Companion
QUICK CARD
2
►The following Information is needed to
configure the Loopback Profile:
•Interface Type (RJ-45 or SFP)
•Interface Rate (1G, 10G)
•Interface Protocol
(Layer 2 VIAVI LB or Port LB)
•VLAN Filter (ID and/or Priority)
1. Press to display
the Profile Manager screen.
2. Press
to create a new profile.
3. Select New Loopback Profile and, if
prompted, ACCEPT TERMS OF USE.
4. Configure Interface settings as follows:
CONFIGURE PROFILE
On the Mobile Device:
1. Go to the Settings menu, enable Bluetooth,
and scan for available devices.
2. Pair with VIAVI NSC.
3. Launch the VIAVI Mobile TechApp and tap
LOCAL MODE.
4. Press to connect to VIAVI NSC.
5. Press show more to view device information,
including MAC Addresses of the RJ45 port
and SFP port. Provide this information to the
operator of the Traffic Generator upon request.
6. Press to view the
Companion menu. You can now control the
instrument through the Mobile Tech App and
run all tests on the Companion.
7. Press to exit Job View. Figure 3: Mobile Tech App Figure 4: NSC Mobile Tech
Figure 6: Profile Manager Figure 7: Create New Profile
Figure 5: Work Order
Interface
Interface Type
Interface Rate
1G Copper RJ45 1G
10G Copper
SFP 10G
1G Optical SFP 1G
10G Optical SFP 10G

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Network & Service Companion (NSC-100/200)
Network & Service Companion
QUICK CARD
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5. Disable Persist on Boot if do not want
the NSC to resume loopback testing again
after a shutdown and startup.
6. Set Interface Protocol to
LAYER2-VIAVI-LB.
7. Enable VLAN Filter and enter a VLAN ID
and VLAN Priority to limit loopback to a
single VLAN ID or Priority.
8. Press to initiate the test.
Figure 8: Profile Editor Figure 9: Test Running
CONNECT TO LINE UNDER TEST
►For 1G Copper RJ45 interfaces:
1. Connect the RJ45 jack to the port under
test using CAT 5E or better cable..
2. Verify the following:
oSpeed is 1 Gbps
oAuto-Negotiation is On.
►For 10G Copper SFP interfaces:
1. Insert desired 10G Copper SFP into the
SFP cage on the bottom of the NSC.
2. Connect the SFP to the port under test
using CAT 6A or better cable..
3. Verify the following:
oSpeed is 10 Gbps
oAuto-Negotiation is Off.
Figure 11: 1G Copper RJ45 Figure 12: 10G Copper SFP
SFP Cage
RJ45 Jack
Figure 10: Network and Service Companion Interfaces

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Network & Service Companion (NSC-100/200)
Network & Service Companion
QUICK CARD
© 2023 VIAVI Solutions, Inc,
Product specifications and descriptions in this
document are subject to change without notice.
Patented as described at viavisolutions.com/patents
Contact Us
To reach the VIAVI office nearest you,
visit viavisolutions.com/contact
+1 844 GO VIAVI
([phone])
►For Optical Interfaces:
1. Insert desired Optical Transceiver into the SFP port
on the bottom of the NSC.
2. Use the VIAVI P5000i or FiberChek Probe
microscope to inspect both sides of every connection
being used (SFP, attenuators, patch cables,
bulkheads)
oFocus the fiber on the screen.
oIf it appears dirty, clean the fiber end-face and
re-inspect.
oIf it appears clean, run the inspection test.
oIf it fails, clean the fiber and re-run inspection test.
Repeat until it passes.
3. Connect the SFP to the port under test using a
jumper cable compatible with the line under test..
4. Verify the following:
oTx Power is within the limits of the port under test.
oRx Power is within the limits of the SFP in the
NSC.
5. If necessary, insert optical attenuators into the SFP
TX and/or RX ports.
Figure 14: 1G or 10G Optical SFP
Figure 13: Inspect Before You Connect
CONNECT TO LINE UNDER TEST (Continued)
LOOP UP
1. The NSC may be looped up by either of the following
methods.
oBroadcast Loop up message: NSC will respond to
VIAVI Loop up messages received via Broadcast
MAC address and will enter Loopback state.
oUnicast Loop up message: The NSC will respond
to VIAVI Loop up messages received via Unicast
MAC address and will enter Loopback state.
2. Once looped, the NSC will reflect all received test
packet after inverting Source and Destination MAC
addresses.
3. When the test is finished, press to stop the test. Figure 15: Loopback Results