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AS5835-54X - Troubleshoot switch port link problems Follow

ann302_chung 鍾雅安

August 23, 2024 14:37
Updated

Purpose :

This article describes how to troubleshoot the switch ports cannot link up problems.

Model :

AS5835-54X

Procedure :

Step-1 Please make sure your network cable is good first

Step-2 Please power cycle the switch and boot into the ACCTON-DIAG for troubleshooting

Step-3 Execute the command to set port speed

Set the port speed to 10G and 100G on the uplink ports.

root@(none):/# swutil -C -r 10G-100G
switch config mode: 10G-100G

If you want to test with port speeds 10G and 40G, please execute the "swutil -C -r 10G-40G".

Step-4 Setup the environment for specific ports

For example:

Use a pair of 10G transceivers to connect port1 and port2.
Use a pair of 100G transceivers to connect port49 and port50.

Step-5 Execute the command to check the port status

Basically, plugging those cables and transceivers does not require additional settings, the ports will link up directly if everything is properly.

The port mapping as below :

xe0~xe47 is physical port1~port48
ce0~ce5 is physical port49~port54

root@(none):/# swutil ps
                 ena/        speed/ link auto    STP                  lrn  inter   max   cut   loop
           port  link  Lns   duplex scan neg?   state   pause  discrd ops   face frame  thru?  back   encap
       xe0(  1)  up     1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
       xe1(  2)  up     1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
       xe2(  3)  down   1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
       xe3(  4)  down   1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
       xe4(  5)  down   1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
       xe5(  6)  down   1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
<omit>
       ce0( 27)  up     4  100G  FD   SW  No   Forward  TX RX   None   FA  CAUI4  9412    No          IEEE
       ce1( 25)  up     4  100G  FD   SW  No   Forward  TX RX   None   FA  CAUI4  9412    No          IEEE
       ce2( 26)  down   4  100G  FD   SW  No   Forward  TX RX   None   FA  CAUI4  9412    No          IEEE
       ce3( 35)  down   4  100G  FD   SW  No   Forward  TX RX   None   FA  CAUI4  9412    No          IEEE
       ce4( 34)  down   4  100G  FD   SW  No   Forward  TX RX   None   FA  CAUI4  9412    No          IEEE
<omit>

If the fiber port still CANNOT link up, please refer to step-6 for debugging.

Step-6 Check the fiber port

There are four items that need to be checked here.

Dump the EEPROM of the transceiver
Please use the command "trcv-dev [Port number] eeprom" to dump the transceiver's EEPROM according to the port you used.
*AS5835-54X has a total of 54 fiber ports, the [Port number] starts from 0 to 53.
*Please make sure the switch can read EEPROM information properly.

root@(none):/# trcv-dev 0 eeprom
    0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 03 04 07 10 00 00 00 00 00 00 00 06 67 00 00 00    ????.......?g...
10: 08 03 00 1e 45 64 67 65 63 6f 72 65 20 20 20 20    ??.?Edgecore
20: 20 20 20 20 00 70 72 cf 45 54 35 34 30 32 2d 53        .pr?ET5402-S
30: 52 20 20 20 20 20 20 20 30 31 20 20 03 52 00 8f    R       01  ?R.?
40: 00 1a 00 00 4a 31 31 38 30 35 30 30 30 33 38 35    .?..J11805000385
50: 20 20 20 20 31 38 30 32 30 32 20 20 68 f0 03 db        180202  h???
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

Check the "pre-emphasis" and "link training"
If you are using optical transceiver or AOC cable, then there is no additional settings are required here. By default, our DIAG already loaded the "pre-emphasis" accordingly.
If you are using the DAC cable, please refer to the following command for enabling the "link training" function.

root@(none):/# swutil port xe0-xe47 sp=10000 if=cr
root@(none):/# swutil phy control xe LT=1
Current PHY control settings of xe0 ->
Preemphasis = 0x1b4405
DriverCurrent = 0xffffffff
DFE ENable = True
LP DFE ENable = False
BR DFE ENable = False
LinkTraining Enable = True
Interface = 0xd
CL74 = False
CL91 = True
CL108 = False
root@(none):/# swutil phy control ce LT=1
Current PHY control settings of ce0 ->
Preemphasis = 0x194605
DriverCurrent = 0xffffffff
DFE ENable = True
LP DFE ENable = True
BR DFE ENable = False
LinkTraining Enable = True
Interface = 0x3e
CL74 = False
CL91 = True
CL108 = False

Regarding the SFP+ 10G port, please check the "TX_disable" setting. (By default is enabled.)
Use the command "trcv-dev 0-47 txdis" to check the current setting.
* "yes" means enabled and it will disable the transmitter of the transceiver.

root@(none):/# trcv-dev 0-47 txdis
SFP_1[0]: yes
SFP_2[1]: yes
SFP_3[2]: yes
SFP_4[3]: yes
SFP_5[4]: yes
SFP_6[5]: yes
SFP_7[6]: yes
SFP_8[7]: yes
SFP_9[8]: yes
SFP_10[9]: yes
SFP_11[10]: yes
<omit>

* "no" means disabled, and it will enable the transmitter of the transceiver.

root@(none):/# trcv-dev 0-47 txdis
SFP_1[0]: no
SFP_2[1]: no
SFP_3[2]: no
SFP_4[3]: no
SFP_5[4]: no
SFP_6[5]: no
SFP_7[6]: no
SFP_8[7]: no
SFP_9[8]: no
SFP_10[9]: no
SFP_11[10]: no
<omit>

Please execute following commands to disable it.

root@(none):/# trcv-dev 0-47 txdis 0
root@(none):/# i2cset -y 1 0x77 0x02
root@(none):/# i2cset -y 1 0x62 0x0c 0x00
root@(none):/# i2cset -y 1 0x62 0x0d 0x00

After that, please check the port status if it will link up or not.

root@(none):/# swutil ps
                 ena/        speed/ link auto    STP                  lrn  inter   max   cut   loop
           port  link  Lns   duplex scan neg?   state   pause  discrd ops   face frame  thru?  back   encap
       xe0(  1)  up     1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
       xe1(  2)  up     1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
       xe2(  3)  down   1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
       xe3(  4)  down   1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
       xe4(  5)  down   1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
       xe5(  6)  down   1   10G  FD   SW  No   Forward  TX RX   None   FA    XFI  9412    No          IEEE
<omit>

Regarding the QSFP28 100G port, please check "QSFP RESET state" and "LPmode" (Low Power mode) settings. (By default, the setting is reset state and high power mode.)
Use the below command to set all QSFP28 ports to "normal state".

root@(none):/# i2cdetect -y 1
root@(none):/# i2cset -y 1 0x77 0 0x02
root@(none):/# i2cset -y 1 0x62 0x15 0x3f

In the meanwhile, please make sure the below LPmode setting is 0xc0 (At high power mode).

root@(none):/# i2cdetect -y 1
root@(none):/# i2cset -y 1 0x77 0 0x02
root@(none):/# i2cget -y 1 0x62 0x16
0xc0

If the value is not 0xc0, please execute i2cset -y 1 0x62 0x16 0xc0.
After that, please check the port49 and port50 status if it will link up or not.

root@(none):/# swutil ps
                 ena/        speed/ link auto    STP                  lrn  inter   max   cut   loop
           port  link  Lns   duplex scan neg?   state   pause  discrd ops   face frame  thru?  back   encap
       ce0( 27)    up   4  100G  FD   SW  No   Forward  TX RX   None   FA  CAUI4  9412    No          IEEE
       ce1( 25)    up   4  100G  FD   SW  No   Forward  TX RX   None   FA  CAUI4  9412    No          IEEE

If the above items are checked, but the ports still cannot be linked up, please save all logs of the above test and submit the ticket to Edgecore Support.

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AS5835-54X - Troubleshoot switch port link problems Follow

Purpose :

Model :

Procedure :

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Edgecore Networks Corporation

END USER LICENSE AGREEMENT

1) Trademarks:

2) License grant:

3) Open Source Software:

4) Ownership and Copyright:

5) Unauthorized Use:

6) No Warranties:

7) Limited Liability:

8) Compliance with laws:

9) Termination:

10) Governing Law and Jurisdiction:

11) General:

Category

Purpose :

Model :

Procedure :

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