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questions for system-id for lag interfaces

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  • 1.  questions for system-id for lag interfaces

    Posted 05-02-2020 13:56

    evpn.JPG

    on vMX7

    set chassis aggregated-devices ethernet device-count 2
    set interfaces ge-0/0/0 gigether-options 802.3ad ae0
    set interfaces ge-0/0/1 gigether-options 802.3ad ae1
    set interfaces ae0 aggregated-ether-options lacp active
    set interfaces ae0 aggregated-ether-options lacp system-id 00:78:78:78:78:01
    set interfaces ae0 unit 0 family bridge interface-mode trunk
    set interfaces ae0 unit 0 family bridge vlan-id-list 100
    set interfaces ae0 unit 0 family bridge vlan-id-list 101
    set interfaces ae0 unit 0 esi 00:78:78:78:78:78:78:78:78:01
    set interfaces ae0 unit 0 esi all-active
    
    set interfaces ae1 aggregated-ether-options lacp active
    set interfaces ae1 aggregated-ether-options lacp system-id 00:78:78:78:78:02
    set interfaces ae1 unit 0 family bridge interface-mode trunk
    set interfaces ae1 unit 0 family bridge vlan-id-list 101
    set interfaces ae1 unit 0 family bridge vlan-id-list 100
    set interfaces ae1 unit 0 esi 00:78:78:78:78:78:78:78:78:02
    set interfaces ae1 unit 0 esi all-active
    
    on VMX8
    set chassis aggregated-devices ethernet device-count 2
    set interfaces ge-0/0/0 gigether-options 802.3ad ae0
    set interfaces ge-0/0/1 gigether-options 802.3ad ae1
    set interfaces ae0 aggregated-ether-options lacp active
    set interfaces ae0 aggregated-ether-options lacp system-id 00:78:78:78:78:01
    set interfaces ae0 unit 0 family bridge interface-mode trunk
    set interfaces ae0 unit 0 family bridge vlan-id-list 100
    set interfaces ae0 unit 0 family bridge vlan-id-list 101
    set interfaces ae0 unit 0 esi 00:78:78:78:78:78:78:78:78:01
    set interfaces ae0 unit 0 esi all-active
    
    set interfaces ae1 aggregated-ether-options lacp active
    set interfaces ae1 aggregated-ether-options lacp system-id 00:78:78:78:78:02
    set interfaces ae1 unit 0 family bridge interface-mode trunk
    set interfaces ae1 unit 0 family bridge vlan-id-list 101
    set interfaces ae1 unit 0 family bridge vlan-id-list 100
    set interfaces ae1 unit 0 esi 00:78:78:78:78:78:78:78:78:02
    set interfaces ae1 unit 0 esi all-active
    

    I think ae0 on vMX7 should be the same as ae1 on vMX8, and ae1 on vMX7 should be the same as as as0 on vMX8, Right ?



  • 2.  RE: questions for system-id for lag interfaces
    Best Answer

     
    Posted 05-02-2020 18:43

    Hi,

     

    The system-id should match on VMX7, and on VMX8, they are basically the identifier advertised to the downstream peers connected to both devices, therefore it should match across peers. As long as the ae0 system-id is the same on VMX7 and VMX8, it should work, the same can be said for VMX8.

     

    https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/system-id-edit-interfaces.html

     

    Please mark my post as the solution if this has solved your question.



  • 3.  RE: questions for system-id for lag interfaces

    Posted 05-02-2020 19:43

    thanks !!

     

    Got it.