Brocade CP blade not reachable via management port

Applies to

• Brocade X6-8 Director
• FOS 8.2.x
• CP blade Management (MGMT) Ethernet port

Issue

• CP blade not reachable via Management (MGMT) Ethernet port
• Bond interface down and eth0 shows NO-CARRIER:

/sbin/ip -s link:
: eth0: <NO-CARRIER,BROADCAST,MULTICAST,SLAVE,UP> mtu 1500 qdisc mq master bond0 state DOWN qlen 1000
    link/ether 88:94:71:xx:xx:xx brd ff:ff:ff:ff:ff:ff
    RX: bytes  packets  errors  dropped overrun mcast  
    0          0        0       0       0       0     
    TX: bytes  packets  errors  dropped carrier collsns
    41746      653      0       0       0       0     
 
/sbin/ip -s addr:
: eth0: <NO-CARRIER,BROADCAST,MULTICAST,SLAVE,UP> mtu 1500 qdisc mq master bond0 state DOWN qlen 1000
    link/ether 88:94:71:xx:xx:xx brd ff:ff:ff:ff:ff:ff

/sbin/ethtool eth0:
Settings for eth0:
           Supported ports: [ MII ]
           Supported link modes:   10baseT/Half 10baseT/Full
                                   100baseT/Half 100baseT/Full
                                   1000baseT/Full
           Supports auto-negotiation: Yes
           Advertised link modes:  10baseT/Half 10baseT/Full
                                   100baseT/Half 100baseT/Full
                                   1000baseT/Full
           Advertised pause frame use: No
           Advertised auto-negotiation: Yes
           Speed: 100Mb/s
           Duplex: Full
           Port: MII
           PHYAD: 1
           Transceiver: external
           Auto-negotiation: on
           Current message level: 0xffffffff (-1)
                         drv probe link timer ifdown ifup rx_err tx_err tx_queued intr tx_done rx_status pktdata hw wol 0xffff8000
           Link detected: no