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Brocade FC Switch Management Port down

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Category:
fabric-interconnect-and-management-switches
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brocade
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Applies to

Brocade FC Switch

Issue

  • Brocade Management Port not reachable, no sending or receiving traffic, no errors in errdump indicate a hardware issue.
  • Swapping cables and ports do not resolve the issue
  • Checking the port configuration via CLI on Brocade switch (serial connection):

switch:admin> ethif --show eth0

  • $ ethtool eth0
    Settings for eth0:
    Supported ports: [ TP MII ]
    Supported link modes: 10baseT/Half 10baseT/Full
    100baseT/Half 100baseT/Full
    Supports auto-negotiation: Yes
    Advertised link modes: 10baseT/Half 10baseT/Full
    100baseT/Half 100baseT/Full
    Advertised auto-negotiation: Yes
    Speed: 100Mb/s
    Duplex: Full
    Port: MII
    PHYAD: 1
    Transceiver: external
    Auto-negotiation: off
    Link detected: no

  • If Port is set to MII, use:
    $ mii-tool -vvv:
    [...]
    eth0: 100 Mbit, full duplex, no link
    [...]
    basic mode: 100 Mbit, full duplex
    basic status: no link
    capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
    advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD

     
  • Connected switch port on Cisco switch:
#sh int status | in AB04
Gi1/0/15 AB04.AD.01 notconnect 666 full 1000 10/100/1000BaseTX
Gi1/0/16 AB04.AD.02 notconnect 666 full 1000 10/100/1000BaseTX
 

 

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