Spirent Test Center – Basic
Multicast traffic
generation with IGMPv2
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Content
Introduction
Components Used
Configuration Summary
Test Topology
Connect to the Spirent TestCenter chassis and setup
two ports
Use the Multicast Join/Leave Wizard to create traffic
and receivers
Start traffic on all ports and check real-time
results
Stop traffic and check post-test results
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Introduction
The purpose of this document is to provide the user
step-by-step instructions to
generate and receive IPv4 multicast traffic traffic with IGMPv2
between two Spirent ports
Components Used
- DUT
with two interfaces configured for PIM connected to Spirent ports
- Spirent
TestCenter 9U chassis with two Ethernet interfaces
- Spirent
TestCenter application software
Configuration Summary
- Connect
to the Spirent TestCenter chassis and setup two ports
- Use
the Traffic Wizard to create bi-directional streams
- Send
traffic, adjust load and frame size, and check stats in real-time
- Stop
test and check post-test results
Test Topology
Connect to the Spirent TestCenter chassis and setup
two ports
Step#1: Click Actions, Connect
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Step#2: Click Active on the ports and hit Apply
NOTE: Apply button must be clicked after
every config change
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Step#3: If link does not come up, double check the Media
Type and Auto Negotiation settings
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Step#4: Right-click on any of the port LEDs and use
the Link or Unlink option to check if you are connected to the right port
on the DUT (useful feature if working remote from physical setup)
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Step#5: Go to the IP Config section, configure the
IP address of the ports, and click Apply
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Step#6: Go to DUT and ping the Spirent port
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Use the Multicast Join/Leave Wizard to create traffic
and receivers
Step#7: Click Wizards icon, select Multicst
Join/Leave Wizard, and click OK
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Step#8: Go to Ports tab, Activate the Ports and
assign one port for TX and another for Rx
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Step#9: Click General tab and set the Start Group
IP Address
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Step#10: Click Rx/Tx Setup, and set the IP Address
on both ports. Click OK and select Yes to overwrite the existing
configuration
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Step#11: Go to IGMP Hosts, and note the receiver
was automatically configured. The State will show On or Off depending if
the test is running
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Step#12: Go to IGMP Groups, and note a multicast
group was automatically configured for the host
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Step#13: Go to Traffic, Streams and note the
multicast stream was automatically configured for the source
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Start traffic on all ports and check real-time
statistics
Step#14: Click the Start Test button and change the
Test Type to Continuous
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Step#15: Change the Load to 500 Frames/Sec. Click
Run
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Step#16: Select
Port Rates and Port Counters
from the drop-down menu and note the Signature Frames sent and received
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Step#17: Enable per-stream stats by clicking on
Result Collection and selecting All Streams. Click Ok
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Step#18: Click Apply
and select Streams from the drop-down menu
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Step#19: Go to IGMP Hosts, right-click on the Host,
and interactively send a Leave. Then note the Rx Rate on the port drop to
zero
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Step#20: Right-click on the host again anad Send Report.
Note the Rx Rate on the port go back up to the expected rate
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Step#21: Set unique loads for each stream by going
to Transmit Ports, clicking in the Load section, and set the Mode to Per
Stream. Click OK.
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Step#22: Set unique frame size for each stream by
going to Transmit Ports, clicking in the Frame Size section, and set the
Mode to Per Stream. Click OK.
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Step#23: Set the Frame Size and Rate for each
stream and click Apply
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NOTE: the % Loss is based on the run-time
Tx/Rx rate and not the actual loss. The Lost Frames and % Loss will display
the correct results after stopping the test
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Step#24: Select Streams from the drop-down menu and
note the Tx Rate for the multicast stream
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Stop traffic and check post-test results
Step#25: Click the Stop Test button and wait for
the hardware to send results to the GUI
NOTE: Always note the status of the GUI in the
lower left-hand corner. The amount of time for the test to stop will vary
depending on the size and complexity of the test
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Step#26: After the test stops, select Detailed
Stream Statistics from the drop-down menu and review the Lost Frames, %
Loss, and Latency numbers
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