
Configuring WAN Line Services
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Configuring V.54 Loopback Tests
You can use a set of supported loopback modes for testing both the router’s
DSU/CSU interface and the network/Telco circuit to the router. This section
provides information about the following:
Configuring the V.54 Loopback Test State
You can configure one of the following V.54 loopback test states:
Select a test state or keep the default, no loopback. See “Loopback Test Modes,”
later in this chapter, for detailed information about the tests.
Section Page
Configuring the V.54 Loopback Test State
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Configuring the V.54 Loopback Timer 4-9
Loopback Test Modes 4-10
Table 4-3. Loopback Test State Options
BCC Option Site Manager Option
no-loopback NO LOOP
local-analog-loopback ANALOG
local-digital-loopback DIGITAL
remote-digital-loopback REM DIGITAL
remote-digital-loopback-with-pattern REM DIG/PATTERN
local-analog-loopback-with-pattern ANALOG/PATTERN
pattern-2047-generate PATTERN-2047
Caution:
If the only connection with the remote router is through the
DSU/CSU, selecting a loopback test state prevents the local router from
communicating with the remote router for the duration of the test.
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