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DSL-504 ADSL Router User’s Guide
47
OAM Loopback Test
In order to perform the test, the path and parameters must be specified.
Specify Test Path
The VPI/VCI pair defines the test path. Enter the VPI and VCI values in their
fields.
Specify Test Parameters
The remaining two entries are used to define the parameters of the test. You
must define the flow type and the test type.
Flow Type
Choose F4 (Virtual Path) or F5 (Virtual Connection) from the pull-down menu to
define the flow type.
An F4 flow test is used to verify that OAM information (OAM cells) can be
shared between network elements. This information is used within virtual
paths to report an unavailable path or a virtual path that cannot be
guaranteed.
An F5 flow test is also used to verify that OAM information can be shared
between network elements. This information is used within virtual
connections to report degraded virtual channel performance such as late
arriving cells, lost cells, and cell insertion problems.
Test Type
Select the test type from the remaining pull-down menu. Choose etoe (end-to-
end) to test the entire path from the Router to the ATM connection endpoint.
Choose segment to test the path from the Router to the end of the first ATM
connection segment.