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Problem setting up ESI LAG interface

  • 1.  Problem setting up ESI LAG interface

    Posted 10-31-2023 11:36

    Hello,

    I am trying to set a LAG interface between my leaf1 and leaf 2 devices in a EVPN-VXLAN topology. Problem is LAG interface shows status down:

    lab@leaf1> show interfaces ae0                      
    Physical interface: ae0, Enabled, Physical link is Down
      Interface index: 662, SNMP ifIndex: 557
      Link-level type: Ethernet, MTU: 1514, Speed: Unspecified, BPDU Error: None, Ethernet-Switching Error: None, MAC-REWRITE Error: None, Loopback: Disabled,
      Source filtering: Disabled, Flow control: Disabled, Minimum links needed: 1, Minimum bandwidth needed: 1bps
      Device flags   : Present Running
      Interface flags: Hardware-Down SNMP-Traps Internal: 0x4000
      Current address: 02:05:86:72:4e:ef, Hardware address: 02:05:86:72:4e:ef
      Ethernet segment value: 01:01:01:01:01:01:01:00:01:00, Mode: all-active
      Last flapped   : 2023-10-31 14:21:29 UTC (00:48:06 ago)
      Input rate     : 0 bps (0 pps)
      Output rate    : 0 bps (0 pps)

      Logical interface ae0.0 (Index 562) (SNMP ifIndex 558)
        Flags: Hardware-Down Device-Down SNMP-Traps 0x24024000 Encapsulation: Ethernet-Bridge
        Statistics        Packets        pps         Bytes          bps
        Bundle:
            Input :             0          0             0            0
            Output:          2772          0        354816          976
        Adaptive Statistics:
            Adaptive Adjusts:          0
            Adaptive Scans  :          0
            Adaptive Updates:          0
        Protocol eth-switch, MTU: 1514
          Flags: Is-Primary

    lab@leaf1> show lacp interfaces ae0 
    Aggregated interface: ae0
        LACP state:       Role   Exp   Def  Dist  Col  Syn  Aggr  Timeout  Activity
          xe-0/0/4       Actor    No   Yes    No   No   No   Yes     Fast    Active
          xe-0/0/4     Partner    No   Yes    No   No   No   Yes     Fast   Passive
        LACP protocol:        Receive State  Transmit State          Mux State 
          xe-0/0/4                Defaulted   Fast periodic           Detached

    • Not sure why one of them shows in passive as both are configured to be active.
    • The configuration on both devices is the same in almost any mean, but the ips of the BGP peers.

    This is the config I have on bot devices:

    Leaf 1:

    lab@leaf1> show configuration interfaces ae0 | display set 
    set interfaces ae0 esi auto-derive lacp
    set interfaces ae0 esi all-active
    set interfaces ae0 aggregated-ether-options lacp active
    set interfaces ae0 aggregated-ether-options lacp system-id 01:01:01:01:01:01
    set interfaces ae0 unit 0 family ethernet-switching vlan members v10

    {master:0}
    lab@leaf1> show configuration interfaces xe-0/0/4 | display set                                                                                                       
    set interfaces xe-0/0/4 gigether-options 802.3ad ae0

    Leaf 2:

    lab@leaf2# show interfaces ae0 | display set 
    set interfaces ae0 esi auto-derive lacp
    set interfaces ae0 esi all-active
    set interfaces ae0 aggregated-ether-options lacp active
    set interfaces ae0 aggregated-ether-options lacp system-id 01:01:01:01:01:01
    set interfaces ae0 unit 0 family ethernet-switching vlan members v10

    {master:0}[edit]
    lab@leaf2# show interfaces xe-0/0/4 | display set 
    set interfaces xe-0/0/4 gigether-options 802.3ad ae0

    Can anyone tell me why the ae interface does not want to come up.



    ------------------------------
    NIKOLAY KOSTOV
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