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  • 1.  HP 2920 2-port 10GbE SFP+ Module

    Posted Nov 15, 2021 01:57 AM
    Hello,

    we have 2 2920 Switch in a Stack. Both have 2 HP 2920 2-port 10GbE SFP+ Module with 10G SFP+ SR.

    Port 1/a1 and 2/a1 are in a Trunk to connect to the second 2920 Stack.
    Both Ports are up and seen under LLDP
    1/A1 | 9c dc 71 7b 3c 0b 51 1/B1 Stack-2920-H0
    2/A1 | 9c dc 71 7b 3c 0b 103 2/B1 Stack-2920-H0

    Both Ports are up:
    | Intrusion MDI Flow Bcast
    Port Type | Alert Enabled Status Mode Mode Ctrl Limit
    1/A1-Trk1 SFP+SR | No No Up 10GigFD NA off 0
    2/A1-Trk1 SFP+SR | No Yes Up 10GigFD NA off 0

    but as you see, the Port 1/a1 is no Enabled.

    In the config the port settings are correct and the port isn`t disabled

    interface 1/A1
    name "Uplink zu Stack-2920-H0"
    untagged vlan 1
    trunk trk1 trunk
    exit

    I have change the 10G SFP but the problem persists, so the 10G SPF seems not the Problem.
    Is this a Software Problem or is the HP 2920 2-port 10GbE SFP+ Module defect?

    Regards
    Thomas Rebenstorf

    ------------------------------
    Thomas Rebenstorf
    ------------------------------


  • 2.  RE: HP 2920 2-port 10GbE SFP+ Module

    Posted Nov 15, 2021 02:11 AM
    Edited by DP-7f7ca3 Nov 15, 2021 02:19 AM
    Hi Thomas, can you post the outputs of show lacp (although we see the Port Trunk was configured as type "trunk" and not as type "lacp" so it is "Non Protocol" compared to type "lacp" which is controlled by LACP) and show trunks on both Aruba 2920 Stacks?

    What's about posting both sections of the running configs specifically showing how the involved interfaces (1/A1 and 2/A1 on first Stack and 1/B1 and 2/B1 on the second Stack) were set? and what's about STP (it should not kick in since you should have well formed Port Trunks on both ends).

    Also, what are the outputs of show tech transceivers on both Stacks?

    Edit 1: what ArubaOS-Switch software versions are running on both Stacks?
    Edit 2: I suggest you to change your Port Trunking mode from type "trunk" to type "lacp" on both ends at your earliest convenience.

    ------------------------------
    Davide Poletto
    ------------------------------



  • 3.  RE: HP 2920 2-port 10GbE SFP+ Module

    Posted Nov 15, 2021 03:32 AM
    Hi Davide
    sh lacp
    no LACP ports found.

    Stack-2920-H0# sh trunks

    Load Balancing Method: L3-based (default)

    Port | Name Type | Group Type
    ------ + -------------------------------- ---------- + ----- --------
    1/B1 | Uplink zu Stack-2920-H4 SFP+SR | Trk1 Trunk
    2/B1 | Uplink zu Stack-2920-H4 SFP+SR | Trk1 Trunk

    Stack-2920-H4# sh trunks

    Load Balancing Method: L3-based (default)

    Port | Name Type | Group Type
    ------ + -------------------------------- ---------- + ----- --------
    1/A1 | Uplink zu Stack-2920-H0 SFP+SR | Trk1 Trunk
    2/A1 | Uplink zu Stack-2920-H0 SFP+SR | Trk1 Trunk


    Interface Configuration on Stack-2920-H0

    interface 1/B1
    name "Uplink zu Stack-2920-H4"
    untagged vlan 1
    trunk trk1 trunk
    exit

    interface 2/B1
    name "Uplink zu Stack-2920-H4"
    untagged vlan 1
    trunk trk1 trunk
    exit

    Interface Configuration on Stack-2920-H4
    interface 1/A1
    name "Uplink zu Stack-2920-H0"
    untagged vlan 1
    trunk trk1 trunk
    exit

    interface 2/A1
    name "Uplink zu Stack-2920-H0"
    untagged vlan 1
    trunk trk1 trunk
    exit

    Transceiver Technical Information: Stack-2920-H0
    1/B1 | SFP+SR | J9150A | RPDHXPS1444 | 1990-3878
    2/B1 | SFP+SR | J9150A | RPDHXPS1440 | 1990-3878

    Transceiver Technical Information: Stack-2920-H4
    1/A1 | SFP+SR | J9150A | MY60FFD4YY | 1990-4175
    2/A1 | SFP+SR | J9150A | MY60FFD5HN | 1990-4175

    Stack-2920-H0# sh trunks

    Load Balancing Method: L3-based (default)

    Port | Name Type | Group Type
    ------ + -------------------------------- ---------- + ----- --------
    1/B1 | Uplink zu Stack-2920-H4 SFP+SR | Trk1 Trunk
    2/B1 | Uplink zu Stack-2920-H4 SFP+SR | Trk1 Trunk


    Stack-2920-H4# sh trunks

    Load Balancing Method: L3-based (default)

    Port | Name Type | Group Type
    ------ + -------------------------------- ---------- + ----- --------
    1/A1 | Uplink zu Stack-2920-H0 SFP+SR | Trk1 Trunk
    2/A1 | Uplink zu Stack-2920-H0 SFP+SR | Trk1 Trunk

    Stack-2920-H0# sh ver
    Image stamp: /ws/swbuildm/rel_tacoma_qaoff/code/build/anm(swbuildm_rel_tacoma_qaoff_rel_tacoma)
    Jul 5 2017 20:52:38
    WB.16.03.0005
    246
    Boot Image: Primary

    Boot ROM Version: WB.16.03
    Active Boot ROM: Primary

    Stack-2920-H4# sh ver
    Image stamp: /ws/swbuildm/rel_tacoma_qaoff/code/build/anm(swbuildm_rel_tacoma_qaoff_rel_tacoma)
    Jul 5 2017 20:52:38
    WB.16.03.0005
    246
    Boot Image: Primary

    Boot ROM Version: WB.16.03
    Active Boot ROM: Primary

    STP:
    RSTP ist configured. Both Trunks are in Forwarding Mode

    we don't know how long the problem has existed as it was never noticed until a switch failed

    Thomas Rebenstorf


    ------------------------------
    Thomas Rebenstorf
    ------------------------------

    Original Message


  • 4.  RE: HP 2920 2-port 10GbE SFP+ Module

    Posted Nov 15, 2021 07:07 AM
    Hi Thomas, apart from using a quite old ArubaOS-Switch software version (WB.16.03.005) both Serial Numbers of the J9150A SFP+ Transceivers installed on the Aruba 2920 Stack H0 (the RPDHXPS1444 and the RPDHXPS1440) look strange at first sight, also related 4x4 number (1990-3878) - are those two SFP+ Transceivers old? - doesn't seem to be listed as 4x4 numbers currently supported by Aruba 2920 as per latest DAC & Transceivers Guide (where the SKU J9150A is reported as supported but with 1990-4391, 1990-4635, 1990-4634 and 1990-4175 4x4 numbers)...maybe I'm wrong...but I would triple check that first.

    ------------------------------
    Davide Poletto
    ------------------------------

    Original Message


  • 5.  RE: HP 2920 2-port 10GbE SFP+ Module

    Posted Nov 15, 2021 07:59 AM
    Hi Davide
    Yes, The Firmware is older and will be updated in December
    The Tranceiver are a few Years old. But only one SFP (J9150A | MY60FFD4YY 1990-4175) is not enabled in "sh int brief"
    I have test the Slot with a new SFP
    HPE X132 10G SFP+ LC LR Tranceiver
    J9151A Part Number: 1990-3883

    The behavior is identical. Port 1/a1 is not enabled.
    So this seems to be a Problem with the HP 2920 2-port 10GbE SFP+ Module and not with the SPF itself

    Thomas Rebenstorf

    ------------------------------
    Thomas Rebenstorf
    ------------------------------

    Original Message


  • 6.  RE: HP 2920 2-port 10GbE SFP+ Module

    Posted Nov 15, 2021 08:12 AM
    Hi Davide,
    The SFP is supported, but have not  the ability to view diagnostic monitoring information for transceivers with Diagnostic Optical Monitoring (DOM) support.

    ------------------------------
    Thomas Rebenstorf
    ------------------------------

    Original Message


  • 7.  RE: HP 2920 2-port 10GbE SFP+ Module

    Posted Nov 15, 2021 08:44 AM

    Hi Thomas,

    Actually the J9150A transceiver supports DOM information. You can reference to the transceiver guide:

    https://support.hpe.com/hpesc/public/docDisplay?docId=a00028947en_us

    Command:

    HP Switch(config)# show interfaces transceiver 23 detail

    The transceivers installed in the Stack-2920-H0 are definitely 3rd party transceivers (not HPE genuine SFP, because of the SN), but it looks like the problem is not related to these SFPS. 

    The status of the port 1/A1 is UP and it is just reported as not enabled? Are there any problems with the traffic, or there is only the enabled status stuck on "no"?
    If everything is working, it looks like a display issue/stuck status to me. Did you try to disable/enable the port, to re-install the module, or even to reboot the device - to initiate a self-test for the module?
    I think that the best approach here will be to update the device (device will be rebooted as well) and after that looking for any HW failures (I believe that this is not the case). 



    ------------------------------
    Stanislav Naydenov
    ------------------------------

    Original Message


  • 8.  RE: HP 2920 2-port 10GbE SFP+ Module

    Posted Nov 15, 2021 09:03 AM
    Hi Stanislav

    The status of the port 1/A1 is UP and it is just reported as not enabled?
    Yes
    Are there any problems with the traffic, or there is only the enabled status stuck on "no"?
    There is no traffic on this interface. When we disable the second Connection on 2/a1 we lost the communication to the other Stack.

    Did you try to disable/enable the port, to re-install the module,
    Yes. we disable/enable the Port 1/a1. Nothing change.

    or even to reboot the device
    We cant do this at this Time because of the Server Connections.
    On Saturday we will restart the Stack

    ------------------------------
    Thomas Rebenstorf
    ------------------------------

    Original Message


  • 9.  RE: HP 2920 2-port 10GbE SFP+ Module

    Posted Nov 15, 2021 09:34 AM
    Edited by DP-7f7ca3 Nov 15, 2021 11:54 AM
    Hi Thomas, as written about the strange part is more on the Serial Numbers other than the 4x4 Numbers of that (supported existing) old SKU...but...it could not the (first or direct) cause of your issues...for sure for troubleshooting purposes - in case you will open a Ticket on ASP - Aruba TAC will ask you to update and use a genuine Aruba transceiver with expected 4x4 Numbers (see above)...totally possibile that, if SFP+ SR Transceiver isn't original, it damaged the SFP+ port where it was inserted.

    If I were you (and if a brief disruption can be admitted) I would (a) update both stack to latest available AOS-Switch software build and (b) modify both Port Trunk's ends from "trunk" mode to "lacp" mode also...but here I don't know your topology, port usage and optional modules availability....you should have a 4 links Port Trunk between those two stacks with links terminations on different modules/ports of each 2920 (if possible)...that way you will more protected against a cable/port/module or chassis failure, say something "crossed" like:

    Stack A Switch 1 1/A1 Trk x <--> Trk y 1/A1 Switch 1 Stack B
    Stack A Switch 1 1/B1 Trk x <--> Trk y 2/B1 Switch 2 Stack B
    Stack A Switch 2 2/A1 Trk x <--> Trk y 2/A1 Switch 2 Stack B
    Stack A Switch 2 2/B1 Trk x <--> Trk y 1/B1 Switch 1 Stack B

    It's way more expensive (you need a pair of two SFP+ ports modules per 2920...but you should already have them...and you need also a double number of SFP+ Transceivers on each Stack and of FO cables between the two Stacks)...but it is more resilient. 


    ------------------------------
    Davide Poletto
    ------------------------------

    Original Message


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