[AS57/58/67/68 series] Management port failure Follow

Symptoms of problems:

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

Boot the switch into ONIE rescue mode for further troubleshooting.

Step 1. Verify physical connection properly or not. 

Connected PC/Laptop/other functioning switches to the management port directly.  

The management port supported 100/1000Base-T.

Step 2. Execute the "ethtool eth0" to check the management port status.

Check the link detected is yes indicate the management port is normal.

ONIE:/ # ethtool eth0
Settings for eth0:
 Supported ports: [ TP ]
 Supported link modes: 10baseT/Half 10baseT/Full
 100baseT/Half 100baseT/Full
 1000baseT/Full
 Supported pause frame use: Symmetric
 Supports auto-negotiation: Yes
 Advertised link modes: 10baseT/Half 10baseT/Full
 100baseT/Half 100baseT/Full
 1000baseT/Full
 Advertised pause frame use: Symmetric
 Advertised auto-negotiation: Yes
 Speed: 1000Mb/s
 Duplex: Full
 Port: Twisted Pair
 PHYAD: 31
 Transceiver: internal
 Auto-negotiation: on
 MDI-X: off (auto)
 Supports Wake-on: pumbg
 Wake-on: g
 Current message level: 0x00000007 (7)
 drv probe link
 Link detected: yes

Step 3. Ping Test

Use PC/Laptop/other functioning switches to ping the problem switch. 

Example:

PC/Laptop IP address 192.168.3.200/24

The switch IP address: 192.168.3.100/24

ONIE:/ # ifconfig eth0 192.168.3.100
ONIE:/ # ifconfig
eth0 Link encap:Ethernet HWaddr 8C:EA:1B:CC:0F:31
 inet addr:192.168.3.100 Bcast:192.168.3.255 Mask:255.255.255.0
 inet6 addr: fe80::8eea:1bff:fecc:f31/64 Scope:Link
 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
 RX packets:78 errors:0 dropped:0 overruns:0 frame:0
 TX packets:31 errors:0 dropped:0 overruns:0 carrier:0
 collisions:0 txqueuelen:1000
 RX bytes:7252 (7.0 KiB) TX bytes:7134 (6.9 KiB)

Ping from PC/Laptop to the switch.

C:\Users\edvs5>ping 192.168.3.100
Pinging 192.168.3.100 with 32 bytes of data:
Reply from 192.168.3.100: bytes=32 time<1ms TTL=64
Reply from 192.168.3.100: bytes=32 time<1ms TTL=64
Reply from 192.168.3.100: bytes=32 time<1ms TTL=64
Reply from 192.168.3.100: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.3.100:
 Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
 Minimum = 0ms, Maximum = 0ms, Average = 0ms

If the management port can NOT link up with 100/1000Base-T properly, please return the unit back for RMA repair service.