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  • 1.  BAGG query on Comware 7

    Posted Jan 11, 2023 04:28 PM
    Hi,

    I have a 20Gb BAGG configured between a 10504 and 5945 IRF pair. The BAGG has successfully negotiated at 20Gb and both appear to be passing traffic albeit 1 link more than the other. I noticed that one of the 4 links has "lacp period short" configured on the interface (not sure how), but when you look at the BAGG on this particular link the LACP flag (B I think) is missing.

    Can I remove the lacp period short command without disrupting traffic?

    It might be worth mentioning that this BAGG is stretched between 2 sites via a fibre and extends our DC between sites for migration services as one is closing. Also, if I shut down one of the interfaces will this cause issues or will TCP just resend over the other link ?

    Thanks,

    Matt.


  • 2.  RE: BAGG query on Comware 7

    Posted Jan 11, 2023 07:39 PM
    Edited by parnassus Jan 12, 2023 03:51 AM
    20 Gbps BAGG speed with 4 physical links aggregated together?

    Four physical links should give you an aggregated bandwidth 4 times the one provided by a single member interface (so, as example, 4x1 Gbps = 4 Gbps or 4x10 Gbps = 40 Gbps and so on...). Seeing a reported BAGG speed of 20 Gbps is pretty strange if 4 physical links are involved on each side (IRF).

    Apart that...changing the LACP timeout (short/long) for a BAGG interface should not impact any traffic in transit.

    Could you share the sanitized outputs of the two below commands (executed on both ends/IRF):

    display link-aggregation verbose Bridge-Aggregation <BAGG-id>

    display interface Bridge-Aggregation <BAGG-id>

    Also a display this executed at (a) the <BAGG-id> context level and also at (b) each BAGG member interface context level would be of help to diagnose potential configuration issues/mismatches.

    BAGG outgoing traffic's polarization is something not necessarily strange to see on BAGG member interfaces and it is related mainly to (1) LACP Hashing Algorithm used and (2) parameters involving outgoing traffic packets (Source/Destination IP addresses, Source/Destination protocols, etc.)


  • 3.  RE: BAGG query on Comware 7

    Posted Jan 12, 2023 05:05 AM
    Edited by MJB80 Jan 12, 2023 05:11 AM
    Hi,

    Thanks for getting back to me.

    It is 2 x 10Gb links aggregated together, here are the sanitized configs as requested:

    SW1

     

    Aggregate Interface: Bridge-Aggregationxx

    Aggregation Mode: Dynamic

    Loadsharing Type: Shar

    Management VLANs: None

    System ID: 0x8000, xxxx-xxxx-xxxx

    Local:

      Port                Status   Priority Index    Oper-Key               Flag

      XGE1/x/x           S        32768    30       13                     {ACDEF}

      XGE2/x/x           S        32768    29       13                     {ABCDEF}

    Remote:

      Actor               Priority Index    Oper-Key SystemID               Flag

      XGE1/x/x            32768    166      1        0x8000, xxxx-xxxx-xxxx {ACDEF}

      XGE2/x/x(R)         32768    110      1        0x8000, xxxx-xxxx-xxxx {ACDEF}

     

    dis interface Bridge-Aggregationxx

    Bridge-Aggregationxx

    Current state: UP

    IP packet frame type: Ethernet II, hardware address: xxxx-xxxx-xxxx

    Description: xx

    Bandwidth: 20000000 kbps

    20Gbps-speed mode, full-duplex mode

    Link speed type is autonegotiation, link duplex type is autonegotiation

    PVID: xx

    Port link-type: Trunk

    VLAN Passing:   1(default vlan), xx

    VLAN permitted: 1(default vlan), xx

    Trunk port encapsulation: IEEE 802.1q

    Last clearing of counters: Never

    Last 300 seconds input:  18144 packets/sec 17025471 bytes/sec 0%

    Last 300 seconds output:  11193 packets/sec 13894850 bytes/sec 0%

    Input (total):  8929483289572 packets, 10197708188758272 bytes

            8911357144111 unicasts, 5572827657 broadcasts, 12546651642 multicasts, 0 pauses

    Input (normal):  8929476623463 packets, - bytes

            8911357144126 unicasts, 5572827657 broadcasts, 12546651642 multicasts, 0 pauses

    Input:  9156 input errors, 0 runts, 0 giants, 0 throttles

            9112 CRC, 0 frame, - overruns, 44 aborts

    #

    interface Bridge-Aggregationxx

    description xx

    port link-type trunk

    port trunk permit vlan all

    port trunk pvid vlan xx

    link-aggregation mode dynamic

     

    interface Ten-GigabitEthernet1/x/x

    port link-mode bridge

    description xx

    port link-type trunk

    port trunk permit vlan all

    port trunk pvid vlan xx

    sflow flow collector 1

    sflow sampling-rate 1000

    sflow counter interval 2

    port link-aggregation group xx

     

    interface Ten-GigabitEthernet2/x/x

    port link-mode bridge

    description xx

    port link-type trunk

    port trunk permit vlan all

    port trunk pvid vlan xx

    sflow flow collector 1

    sflow sampling-rate 1000

    sflow counter interval 2

    lacp period short

    port link-aggregation group xx

    #

     

    -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

    SW2

     

    dis link-aggregation verbose Bridge-Aggregationxx

    Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing

    Port Status: S -- Selected, U -- Unselected

    Flags:  A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

            D -- Synchronization, E -- Collecting, F -- Distributing,

            G -- Defaulted, H -- Expired

     

    Aggregation Interface: Bridge-Aggregationxx

    Aggregation Mode: Dynamic

    Loadsharing Type: Shar

    System ID: 0x8000, xxxx-xxxx-xxxx

    Local:

      Port             Status  Priority Oper-Key  Flag

    --------------------------------------------------------------------------------

      XGE1/x/x/x       S       32768    1         {ACDEF}

      XGE2/x/x/x      S       32768    1         {ACDEF}

    Remote:

      Actor            Partner Priority Oper-Key  SystemID               Flag

    --------------------------------------------------------------------------------

      XGE1/x/x/x     29      32768    13        0x8000, xxxx-xxxx-xxxx {ABCDEF}

      XGE2/x/x/x    30      32768    13        0x8000, xxxx-xxxx-xxxx {ACDEF}

     

    dis link-aggregation verbose Bridge-Aggregationxx

    Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing

    Port Status: S -- Selected, U -- Unselected

    Flags:  A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

            D -- Synchronization, E -- Collecting, F -- Distributing,

            G -- Defaulted, H -- Expired

     

    Aggregation Interface: Bridge-Aggregationxx

    Aggregation Mode: Dynamic

    Loadsharing Type: Shar

    System ID: 0x8000, xxxx-xxxx-xxxx

    Local:

      Port             Status  Priority Oper-Key  Flag

    --------------------------------------------------------------------------------

      XGE1/x/x/x       S       32768    1         {ACDEF}

      XGE2/x/x/x      S       32768    1         {ACDEF}

    Remote:

      Actor            Partner Priority Oper-Key  SystemID               Flag

    --------------------------------------------------------------------------------

      XGE1/x/x/x      29      32768    13        0x8000, xxxx-xxxx-xxxx {ABCDEF}

      XGE2/x/x/x       30      32768    13        0x8000, xxxx-xxxx-xxxx {ACDEF}

     

    dis interface brixx

    Bridge-Aggregationxx current state: UP

    IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: xxxx-xxxx-xxxx

    Description: xx

    20Gbps-speed mode, full-duplex mode

    Link speed type is autonegotiation, link duplex type is autonegotiation

    PVID: xx

    Port link-type: trunk

      VLAN passing  : 1(default vlan), xx

      VLAN permitted: 1(default vlan), xx

      Trunk port encapsulation: IEEE 802.1q

    Last clearing of counters:  Never

    Last 300 seconds input:  11202 packets/sec 14004336 bytes/sec    1%

    Last 300 seconds output:  18198 packets/sec 17133972 bytes/sec    1%

    Input (total):  4658371838986 packets, 5273765434058932 bytes

             4648284334793 unicasts, 3465131134 broadcasts, 6530013855 multicasts

    Input (normal):  4658279479782 packets, - bytes

             4648284334793 unicasts, 3465131134 broadcasts, 6530013855 multicasts

    Input:  72520168 input errors, 0 runts, 1 giants, 0 throttles

             72520116 CRC, 0 frame, - overruns, 51 aborts

             - ignored, - parity errors

    Output (total): 4377509707856 packets, 4441970147190121 bytes

             4370659314923 unicasts, 1614963630 broadcasts, 5235429303 multicasts, 0 pauses

    Output (normal): 4377509707856 packets, - bytes

     

    #

    interface Bridge-Aggregationxx

    description xx

    port link-type trunk

    port trunk permit vlan all

    port trunk pvid vlan xx

    link-aggregation mode dynamic

     

    interface Ten-GigabitEthernet1/x/x/x

    port link-mode bridge

    description xx

    port link-type trunk

    port trunk permit vlan all

    port trunk pvid vlan xx

    port link-aggregation group xx

     

    #

    interface Ten-GigabitEthernet2/x/x/x

    port link-mode bridge

    description xx

    port link-type trunk

    port trunk permit vlan all

    port trunk pvid vlan xx

    port link-aggregation group xx

    Thanks,

    Matt.




  • 4.  RE: BAGG query on Comware 7

    Posted Jan 12, 2023 06:38 PM
    Edited by parnassus Jan 14, 2023 07:53 AM
    AFAIK on SW1 where XGE2/x/x/x interface with lacp period short was configured you should be able to safely reset to default (long period) by issuing the undo lacp period CLI command at its interface context level.


  • 5.  RE: BAGG query on Comware 7

    Posted Jan 19, 2023 01:28 PM
    Hi Parnassus,

    Thanks for getting back to me, I shut down one of the BAGG interfaces with no issues or disruption!

    Thanks,

    Matt.