AS7326-56X / AS7726-32X - Management port failure Follow

Model : 

AS7326-56X / AS7726-32X

Symptom of problem : 

• Failed to communicate with the switch through the management port.
• The management port can NOT link UP properly.

Procedure : 

Step1 - Please power cycle to the "ONIE: rescue mode" for troubleshooting

Step2 - Connect a functioning device (PC/Laptop/other) to the switch's management port directly

For example:

PC  (Ethernet Port) <--> (MGMT port) AS7326-56X / AS7726-32X

Step3 - Execute the command "ethtool eth0" to check the management port status

Check the "link detected:", if it shows "yes" which means the management port is linked UP properly. Then you can go to step 4.

ONIE:/ # ethtool eth0
Settings for eth0:
Supported ports: [ FIBRE ]
Supported link modes: 1000baseT/Half 1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 1000baseT/Half 1000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: FIBRE
PHYAD: 8
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: g
Current message level: 0x000000ff (255)
drv probe link timer ifdown ifup rx_err tx_err
Link detected: yes

If the "link detected" shows "no", it means the management port is linked DOWN.

Please check the below item to make sure whether the management port can link up:

1. Replace another RJ45 ethernet cable.
2. Connect the management port to other switches/devices.

If the management port still can NOT link up after the above steps, please return the unit back for RMA repair service.  

Step4 - Ping Test

If it links UP properly between the device (PC/Laptop/other) and the switch's management port. And you can do the simple ping test to make sure your device can communicate with the switch via the management port.

PC (IP -188.188.165.165) <--> (MGMT port - IP - 188.188.97.16) AS7326-56X / AS7726-32X

• PC IP address: 188.188.165.165/16
  

• Switch IP address: 188.188.97.16/16

ONIE:/ # ifconfig eth0 188.188.97.16
ONIE:/ # ifconfig
eth0 Link encap:Ethernet HWaddr 80:A2:35:46:07:99
inet addr:188.188.97.16 Bcast:188.188.255.255 Mask:255.255.0.0
inet6 addr: fe80::82a2:35ff:fe46:799/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6170 errors:0 dropped:1 overruns:0 frame:0
TX packets:45 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:619219 (604.7 KiB) TX bytes:5000 (4.8 KiB)
Interrupt:16

• Ping from PC to the switch.   

C:\Users\edvs5>ping 188.188.97.16

Pinging 188.188.97.16 with 32 bytes of data:
Reply from 188.188.97.16: bytes=32 time=1ms TTL=64
Reply from 188.188.97.16: bytes=32 time<1ms TTL=64
Reply from 188.188.97.16: bytes=32 time<1ms TTL=64
Reply from 188.188.97.16: bytes=32 time<1ms TTL=64

Ping statistics for 188.188.97.16:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms