Wired Intelligent Edge

 View Only
last person joined: 2 days ago 

Bring performance and reliability to your network with the HPE Aruba Networking Core, Aggregation, and Access layer switches. Discuss the latest features and functionality of your switching devices, and find ways to improve security across your network to bring together a mobile-first solution
Back to discussions
Expand all | Collapse all

UniDirectional Link Detection (UDLD)

This thread has been viewed 18 times

  • 1.  UniDirectional Link Detection (UDLD)

    Posted Apr 23, 2022 12:56 AM
    I have enabled between two ports of aruba and cisco switch (fibre module) link-keepalive and i get the bellow :
    Status and Counters - UniDirectional Link Detection (UDLD)

    Port : 1/45
    Current State : failure Neighbor MAC Addr : 000000-000000
    UDLD Pkts Sent : 16 Neighbor Port : 0
    UDLD Pkts Received : 0 State Transitions : 1
    Port Blocking : Yes Link-VLAN : untagged

    Port : 2/45
    Current State : failure Neighbor MAC Addr : 000000-000000
    UDLD Pkts Sent : 13 Neighbor Port : 0
    UDLD Pkts Received : 0 State Transitions : 1
    Port Blocking : Yes Link-VLAN : untagged

    What could be the issue and current state is failed?
    The link functioning properly without any issues!

    ------------------------------
    ioannis vosikas
    ------------------------------


  • 2.  RE: UniDirectional Link Detection (UDLD)

    MVP GURU
    Posted Apr 23, 2022 05:29 AM
    Two separate physical duplex links between two Switches? without aggregating them in a logical Links Aggregate Group interface (Port Trunk on Aruba, Etherchannel on Cisco)? can you provide us a little bit more details about such of configuration (of both sides)?



    Original Message


  • 3.  RE: UniDirectional Link Detection (UDLD)

    Posted Apr 23, 2022 08:14 AM
    Two interfaces (Trunked, LAG LACP active mode) [Port Trunk on Aruba, Etherchannel on Cisco]
    Switch# sh lacp

    LACP

    LACP Trunk Port LACP Admin Oper
    Port Enabled Group Status Partner Status Key Key
    ----- ------- ------- ------- ------- ------- ------ ------
    1/45 Active Trk2 Up Yes Success 0 533
    2/45 Active Trk2 Up Yes Success 0 533





    ------------------------------
    ioannis vosikas
    ------------------------------

    Original Message


  • 4.  RE: UniDirectional Link Detection (UDLD)

    Posted Nov 18, 2022 10:19 AM

    Hi all,

    I´m facing the same issue... a LACP Trk between a Cisco Meraki MS-Switch and an Aruba 2930F!

    Using link-keepalive on dedicated switchports - it works, using link-keepalive on the same ports but when they are part of the LACP Trk they don`t!
    Does anyone have an information if this is a known issue and maybe both (LACP and Link-Keepalive on the physical switchports) in combination is mutually exclusive?


    Original Message