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VLOOP/VBERT

Avg Transit Delay

DE%

DLCI Number

Elapsed Time

IP Address

Port

Rate

Rx DE Clear Frames

Rx DE Set Frames

Size

Status

Test Description

Test Period

Test Type

Tx DE Clear Frames

Tx DE Set Frames


VLOOP/VBERT is a 3.0 TFRAP, SFRAP, or DFRAP feature

VLOOP allows the user to implement single or multiple logical loop backs on a per PVC basis.

VLOOP allows the user to test locally generated traffic to verify the integrity of the link.

Tests are designed as independent functions that can be used alone or in conjunction to provide the required Non-Intrusive (VBERT) and/or Intrusive (VLOOP) results required by the operator.

Configurable Parameters:

Rate

Defines the bytes sent in Kbps. Ranges must be in multiples of Kbps
Range: 8 ~ 2048 Kbps
Default: Kbps

Size

Defines the size in bytes
Range: Small=64, Medium1=256, Medium2=512, Medium3=1024, of Large=2048
Default: Small=64
 

DE %

Defines the percentage of VBERT packets that have the DE bit set.
Range: 0~100% (multiples of 25%)
Default: 50%

Test Period

Defines the length in seconds the VBERT test will run.
Range: 10 Sec, 30sec, 1 Min, 2 Min, 5 Min, 10 Min, 15 Min, 20 Min, or 24 Min.
Default: 30sec

Test Type

Defines the type of test to be run
Range: VLOOP or VBERT
 

Display Parameters (not configurable):

Test Description

Describes the loop back and any usage warnings along with what loop back is enabled (if any).

Results

Port: Type of port.
DLCI Number: Number of the test DLCI.
IP Address: Remote address designation.
Status: Displays the status of the VLOOP/VBERT test (Off, In-Test, Test failed, and Test-Completed)
Elapsed Time: Elapsed time since VBERT Test was started or cleared.
Tx DE Set Frames: Displays the number of transmitted frames during a VBERT test that had the Discard Eligibility indicator bit was set.
Rx DE Set Frames: Displays the number of received frames during a VBERT test that had the Discard Eligibility indicator bit was set.
Tx DE Clear Frames: Displays the number of transmitted frames during a VBERT test that had the Discard Eligibility indicator bit was cleared.
Rx DE Clear Frames: Displays the number of received frames during a VBERT test that had the Discard Eligibility indicator bit was cleared.
Avg Transit Delay: Average transit delay between the node and the remote peer during a VBERT test