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8. Troubleshooting
9128-A2-GB20-80 September 2002
8-29
Repeater Loopback
The Repeater Loopback (RLB) loops data received from the data ports and the
DSX-1 interface after the signal has passed through the framing circuitry. Use RLB
to ensure that all of the data is correct up to the point where it is sent over the
interface. This helps to indicate that the FrameSaver unit is operational.
Main Menu
→
Test
→
Network Physical Tests
An attached device or test equipment should generate and monitor data to be
looped back.
The FrameSaver unit will not respond to any messages from the network during
this test.
CAUTION:
This test may affect operation of frame relay PVCs assigned to the
selected interface. While in loopback, the frame relay link will be down
so any IP data being sent while this test is active will be disrupted.
An RLB cannot be started when one of the following tests is active:
Payload Loopback, Send Remote Line Loopback, or an active Monitor Pattern
on this network interface.
All loopbacks on any other T1 interface with DS0s assigned to this network
interface.
Send Pattern Test on this network interface or any synchronous data port (Port
Use set to Synchronous) assigned to this interface.
Send V.54 or FT1 Loopback, or Data Channel Loopback on any synchronous
data port (Port Use set to Synchronous) assigned to this network interface.
97-15338
The T1
Interface
Other
T1
Interface
AIS
Framer
RLB