Thread: F4 and F5 OAM Test

I am on BSNL 750 UL Home Plan.
Modem-
MODEL:T1-B-DSL699E9.4U6-5 MAKE:TERACOM LIMITED
OS-
Windows7



When I am running troubleshooting from 192.168.1.1 I am getting FAILs in
in two tests under F4 OAM Test and in two tests under F5 OAM Test for
a few weeks.What is the meaning of these tests and what is the meaning of
those FAILs?
I am also getting low DL speed(40-52KBps) where I used to get 52-58KBps.
Check the attachment.

oam loopback test are related to pppoa not pppoe

@mickyald

oam loopback test are related to pppoa not pppoe

After 103 hits appears incorrect information given ! please give some source for your information.

In my Beetel 110BXI BSNL connection on PPPoE.
OAM4 test fails. OAM5 Pass.

from a forumpost in year 2005:
it a Operation, Administration & Maintenance tes.? I think they just test to see if the router is functioning correctly.

@mgtheboss
The test is ISP related , and does not affect our connection.
seems user is not allowed to PING the server. Little complicated and hence did not attempt a reply.
wait...
In some modems this is not even shown. ( mine 100TCI also )
See this: still there was No connection to Internet Binatone

103hits

from Google search :

OAM type / Function type

The possible values for OAM type and function type are listed below:
OAM type
Value
Function typeValue
Fault Management 0001
Alarm Indication Signal (AIS)0000
Far End Receive Failure (FERF)0001
OAM Cell Loopback1000
Continuity Check 0100

Performance Management 0010
Forward Monitoring0000
Backward Reporting0001
Monitoring and Reporting0010
Activation/ Deactivation1000
Performance Monitoring0000
Continuity Check0001

OAM F4 cells operate at the VP level. They use the same VPI as the user cells, however, they use two different reserved VCIs, as follows:

VCI=3 Segment OAM F4 cells.
VCI=4 End-end OAM F4 cells.

OAM F5 cells operate at the VC level. They use the same VPI and VCI as the user cells. To distinguish between data and OAM cells, the PTI field is used as follows:

PTI=100 (4) Segment OAM F5 cells processed by the next segment.
PTI=101 (5) End-to-end OAM F5 cells which are only processed by end stations terminating an ATM link.