管理ポート経由で Brocade CP ブレードにアクセスできない

環境

• Brocade X6-8 ディレクタ
• FOS 8.2.x の場合
• CP Blade Management （ MGMT ）イーサネットポート

問題

• CP ブレードには、管理（ MGMT ）イーサネットポート経由でアクセスできません
• ボンド インターフェイスがダウン し、 eth0 にはNO-CARRIER次のように表示

/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