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  • 1.  Problem with Link Aggregation between two EX-4200

    Posted 04-01-2009 12:05

    Hello,

     

    I have a problem with a link aggregation between 2 juniper switches. I check the configuration and I couldn't find any problem, but the link aggregation physically is down. The leds are blinking in green of both ports in the 2 switches.

     

    I atached the 2 EX-4200 configurations.

     

    Can anyone help me?

     

    Thank you in advance!

     

    Regards,

     

    Esteban.


    #switch
    #LACP
    #Aggregation
    #link
    #ex-4200

    Attachment(s)

    txt
    SW-TEST1.txt   4 KB 1 version
    txt
    SW-TEST2.txt   4 KB 1 version


  • 2.  RE: Problem with Link Aggregation between two EX-4200

    Posted 04-01-2009 14:09
    Nothing wrong with the config I can see! I saw you're tracing, does it show something? Thought about upgrading?


  • 3.  RE: Problem with Link Aggregation between two EX-4200

     
    Posted 04-01-2009 14:13

    Hi Esteban
     
    I was trying to replicate your config and only found this way to have a LACP LAG working:
    Using L3 at the aex interface:
     
    with this config:
     
    set interfaces ge-0/0/0 ether-options 802.3ad ae0
    set interfaces ge-0/0/2 ether-options 802.3ad ae0

    set interfaces ae0 aggregated-ether-options minimum-links 1
    set interfaces ae0 aggregated-ether-options lacp passive
    set interfaces ae0 unit 0 family inet address 10.0.0.1/30
     
    On one side and this one on the other side:
     
    set interfaces ge-0/0/0 ether-options 802.3ad ae0
    set interfaces ge-0/0/2 ether-options 802.3ad ae0
     
    set interfaces ae0 aggregated-ether-options minimum-links 1
    set interfaces ae0 aggregated-ether-options lacp active
    set interfaces ae0 unit 0 family inet address 10.0.0.2/30
     
    It's working correctly but with only layer 2 I can't have the LACP LAG up like you!
     
    Here it is working: (this one of the 2 sides)
     
    Alain@Switch_EX3200> show interfaces ae0 terse 
    Interface               Admin Link Proto    Local                 Remote
    ae0                     up    up  
    ae0.0                   up    up   inet     10.0.0.1/30     
     
     
    Can you issue this kind of command on both sides and give us the outputs?
    Can you try to configure a Layer 3 address on the ae interfaces?
     
    HTH 

     

     

     



  • 4.  RE: Problem with Link Aggregation between two EX-4200

     
    Posted 04-01-2009 14:30

    Hi Esteban

     

    After some other tries

     

    I had the LACP LAG working even with L2 only on the interface.

     

    set interfaces ge-0/0/0 ether-options 802.3ad ae0

    set interfaces ge-0/0/2 ether-options 802.3ad ae0

     

    set interfaces ae0 aggregated-ether-options minimum-links 1

    set interfaces ae0 aggregated-ether-options lacp passive

    set interfaces ae0 unit 0 family ethernet-switching port-mode access

     

     Alain@Switch_EX3200> show interfaces ae0 terse 

    Interface               Admin Link Proto    Local                 Remote

    ae0                     up    up  

    ae0.0                   up    up   eth-switch

     
     
    The difference with you is the version I am running:
     
    Alain@Switch_EX3200> show version 
    Hostname: Switch_EX3200
    Model: ex3200-24t
    JUNOS Base OS boot [9.4R1.8]
     
    By the way try to issue a command like :
     
    "monitor traffic interface ge-0/0/12  detail"  or "monitor traffic interface ge-0/0/13 detail"
    To see if you have some LACP frames sent or received.
     
    HTH 
     


  • 5.  RE: Problem with Link Aggregation between two EX-4200
    Best Answer

    Posted 04-08-2009 09:23

    Thank you all !

     

    I really don't know what was the problem...but I restart to factory defaults and made everything by J-WEB and now are working perfect !

     

    I note that a few times I configured something in the CLI and the changes wasn't totally reflected in the J-WEB.... maybe a bug ? I have JUNOS 9.4...

     

     

    Thank you guys !  Smiley Happy

     

    Regards,

     

    Esteban.