List of bad ethernet cables

Test Result with Force 10 switch

We have found some bad Ethernet cables between D2 and D3, D1 and D2. And we also tested these cables with TDR of Force10 switch.

D3 Patch	D2 Patch	corresponding Board	Test result	Comment
D3B01B01	D2D04-2-17	PS Brd 05 port0	Pair C open, length* 46m Pair D short, length 48m
D3B02A21	D2D04D01	ECAL Brd17 port0	Pair C short, length* 46m Pair D short, length 48m
D3B02B17	D2D04D21	ECAL Brd22 port0	Pair C short, length 46m Pair D open, length 47m
D3B02B18	D2D04D22	ECAL Brd22 port1	Pair C short, length 46m Pair D open, length 48m
D3B02B21	D2D04E01	ECAL Brd23 port0	Pair C short, length 46m Pair D open, length 47m
D3E02G06	D2D06W22	TPUTELL03	Pair A, Length: 12m, Open Pair C, Length: 52m, Short Pair D, Length: 54m, Short
D2C06A18	D1B09A09	Farm node B09 control sw uplink	Pair A, Length: 17m, Open Pair C, Length: 18m, Short Pair D, Length: 19m, Short
D2B04B18	D1B07A02	Farm node B07 data sw Storage uplink	can't be tested by TDR of Fource 10 Switch**

* The length was measured from the end of the patch panel in D2

** the port status was cycling with on and off

For PS Board05, port0, 1, 2 are connected to the patch port D3B01A02, D3B01A03, D3B01A04, and port3 is disconnected
For ECAL Board17, port0, 1, 2 are connected to the patch port D3B02A22, D3B02A23, D3B02A24, and port3 is disconnected
For ECAL Board22, port0, 1 are connected to the patch port D3B02B19, D3B02B20, and port2, 3 are disconnected
For ECAL Board23, port0, 1, 2 are connected to the patch port D3B02B22, D3B02B23, D3B02B24, and port3 is disconnected
For TPUTELL03 , port0 is connected to the patch port D3E02D05
For Farm node B09 control sw, the uplink is connected to the patch port D1B09A16 to D2D08C06, then connected to sw-ux-01 by a long cable
For Farm node B07 data sw, the storage uplink is connected to the patch port D1B07A08 to D2B04B24, then connected to sw-d2b04-s1

Test Result with FLUKE DSP4000 analyzer

We had test the bad cables with FLUKE DSP4000 on May 15, 2008.

In the test, the DSP4000 was connected with D2 patch panels with 0.4m cat cable, and the Smart Remote was connected with D1 or D3 patch panels with 0.4m cat cable.

D3 Patch	D2 Patch	Test result	Comment
D3B01B01	D2D04-2-17	pin 5 open, length 31.9m	length of pair36: 32.3m
D3B02A21	D2D04D01	insertion loss 25.8db
D3B02B17	D2D04D21	insertion loss 25.9db
D3B02B18	D2D04D22	insertion loss 26db
D3B02B21	D2D04E01	insertion loss 25.8db
D3E02G06	D2D06W22	pin 2 open, length 0.4m(on D2 side)
D2C06A18	D1B09A09	pin 2 open, length 17.6m	length of pair36: 17.4m
D2B04B18	D1B07A02	pin 2 open, length 0.4m(on D2 side)

The test report is attached below

-- GuomingLiu - 14 Feb 2008