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 is properly or not. 

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

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

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

- AS5916-54XL

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: 1
        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

- AS5916-54XKS (Please note that AS5916-54XKS only supports 1G speed.)

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

- AS7816-64X (Please note that AS7816-64X only supports 1G speed.)

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

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 B8:6A:97:70:D4:F1
          inet addr:192.168.3.100  Bcast:192.168.3.255  Mask:255.255.0.0
          inet6 addr: fe80::ba6a:97ff:fe70:d4f1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8202 errors:0 dropped:18 overruns:0 frame:0
          TX packets:137 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:737964 (720.6 KiB)  TX bytes:13440 (13.1 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 properly, please return the unit back for RMA repair service.