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Cannot Trunk Broacade 16G ISL's when connecting to a Ciena DWDM

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Applies to

  • MetroCluster
  • Ciena
  • Brocade
  • Broadcom

Issue

  • When connecting Brocade 16G ISL'S to a Ciena DWDM the ports will not trunk.
  • The switchshow command on the Brocade switch will show one of the ISL ports  online and the other in a no sync state:

Index Port Address  Media Speed   State       Proto
==================================================
40  40   062800   id    16G      Online      FC  LS G-Port  
 41  41   062900   id    16G      No_Sync     FC  LS Disabled

  • You may see errors similar to these:

2024/08/17-09:23:19, [PORT-1010], 32248, FID 128, INFO, <Switch name>, Port (ID: 41) QoS is disabled.

2024/08/17-09:23:39, [MAPS-1003], 32249, FID 128, WARNING, <Switch name>, port41, U-Port 41, Condition=NON_E_F_PORTS(STATE_CHG/min>11), Current Value:[STATE_CHG, 22], RuleName=defNON_E_F_PORTSSTATE_CHG_11, Dashboard Category=Port Health.

2024/08/17-09:23:57, [MAPS-1003], 32250, FID 128, WARNING, <Switch name>, port41, U-Port 41, Condition=ALL_PORTS(LF/min>5), Current Value:[LF, 6], RuleName=defALL_PORTSLF_5, Dashboard Category=Port Health.

  • You will see that the ports are set for FEC:

    Switchname:root> portcfgshow 41
    Area Number: 40
    Octet Speed Combo: 1(16G|8G|4G|2G)
    FC Speed Level: 16G
    AL_PA Offset 13: OFF
    Trunk Port ON
    Long Distance LS
    VC Link Init ON
    Desired Distance 65 Km
    Reserved Buffers 526
    Locked L_Port OFF
    Locked G_Port ON
    Disabled E_Port OFF
    Locked E_Port OFF
    ISL R_RDY Mode OFF
    RSCN Suppressed OFF
    Persistent Disable OFF
    LOS TOV mode 0(OFF)
    DWDM losync mode OFF
    NPIV capability ON
    QOS Port OFF
    Port Auto Disable: OFF
    Rate Limit OFF
    EX Port OFF
    Mirror Port OFF
    SIM Port OFF
    Credit Recovery ON
    F_Port Buffers OFF
    E_Port Credits OFF
    Fault Delay: 0(R_A_TOV)
    NPIV PP Limit: 126
    NPIV FLOGI Logout: OFF
    CSCTL mode: OFF
    TDZ mode: OFF
    Clean Address Bit: OFF
    D-Port mode: OFF
    D-Port over DWDM: OFF
    Compression: OFF
    Encryption: OFF
    10G/16G FEC: ON
    16G FEC via TTS: OFF
    8G Non-DFE: OFF(Auto)

 

 

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