1 Reply Latest reply on Sep 12, 2016 11:39 AM by patgarner

    Asymetric throughput on 45M EFM group with 1181429L3 ?

    rfreeman New Member

      I have a 45M EFM service and while it will achieve around 42Mbps download (i.e. towards the NV838) I can only get about 28 Mbps upload.

       

      EFM card - 1181429L3 is running A01.21 (I have tried different versions)

      NV838 - 1200633G4 is on J02.02

      CSM - 1181044L1 is on D06.74

       

      logged into the NV838 I can see 39.5 Mbps on the Ethernet port to and from the testers (set to generate 40M) and both ways on the EFM-Group:

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

      NSYD_TEST_EFM_NTU#sho int eth 1/0/1

      Ethernet 1/0/1

        Description                     Ethernet 1/0/1

        State                           Enabled - IS

        Link Status                     Up

        Link State Awareness            Disabled

        Provisioned Rate & Duplex       Auto

        Functional Rate & Duplex        100, Full

        Cross-Over Mode                 Auto

        Tx Bytes                        2004193785

        Tx Bytes 5-min Average          4935066

        Tx kbits 5-min Average          39481

        Tx Frames                       18296619

        Tx Frames 5-min Average         3251

        Tx Unicasts                     18296430

        Tx Multicasts                   189

        Tx Broadcasts                   0

        Rx Bytes                        2315942286

        Rx Good Bytes                   2315943804

        Rx Bytes 5-min Average          4935114

        Rx kbits 5-min Average          39481

        Rx Frames                       18501809

        Rx Good Frames                  18501810

        Rx Frames 5-min Average         3251

        Rx Unicasts                     18501809

        Rx Multicasts                   0

        Rx Broadcasts                   0

        Rx FCS & Align Errors           0

        Rx Discards                     0

        Rx Giants                       0

        Rx Runts                        0

        Rx Invalid CE-VLAN ID Frames    0

        Collisions                      0

        Max MAC Entry                   0

        Max MAC Entry 5-min Average     0

       

      NSYD_TEST_EFM_NTU#sho int efm-g 1/0/1

      EFM Group 1/0/1

        Alias                           EFM GROUP 1/0/1

        Description                     EFM-Group 1/0/1

        Status                          OK

        Provisioned Links               1-8

        Active Links                    1-8

        Inhibited Links                 None

        Data Rate (kbps)                45568

        Tx Frames                       1774770802

        Tx Frames 5-min Average         3252

        Tx Bytes                        3168858506

        Tx Bytes 5-min Average          4948216

        Tx kbits 5-min Average          39586

        Rx Frames                       1774498344

        Rx Frames 5-min Average         3251

        Rx Bytes                        3521751326

        Rx Bytes 5-min Average          4948052

        Rx kbits 5-min Average          39584

        Rx Bad Fragment                 0

        Rx Lost Fragment                3

        Rx Lost Start                   0

        Rx Lost End                     0

        Loopback                        Disabled

        XCV Threshold                   1e-7

        XCV Link Removal                Enabled

       

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

       

      While it looks like the EFM-Group performance monitoring counter over runs on the EFM card, at least the TX and RX are close - suggesting TX and RX on the EFM-group should be the same (40M or so)  there is certainly no sign of them being 25% different:

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

      Shelf:  1  Slot:  1           Total Access System                 07/04/16 14:02

      Unacknowledged Alarms:          MAJOR MINOR       INFO

       

                                   EFM Group 1 Performance

       

                                      Status : In Service

                        Assigned SHDSL Links : 1-8

       

                                     15 Minute                     24 Hour

                              Current      Previous        Current      Previous

          Tx Octets         : 548285280    164325284       4267491172   0

          Tx Frames         : 360240       2929890         5625794      0

          Rx Octets         : 548301861    164469771       4267760230   0

          Rx Frames         : 360358       2930852         5627636      0

          Rx Bad Fragments  : 0            0               0            0

          Rx Lost Fragments : 0            0               0            0

          Rx Lost Starts    : 0            0               0            0

          Rx Lost Ends      : 0            0               0            0

       

                              1.  Reset Performance History

       

                                        Selection:

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

       

      however on the CSM facing the port for the EFM Group there is a stark contrast, although curiously with no discards on either the port or the VC/VP :

       

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

      Shelf:  1  Slot:  A           Total Access System                 07/04/16 14:08

      Unacknowledged Alarms:          MAJOR MINOR       INFO     ONLINE

       

       

                                     PORT PERFORMANCE

                                      Slot 1, Port 1

       

                            TxCells                        : 20317248

                            RxCells                        : 14640844

                            TxCell Rate (CPS)              : 103731

                            RxCell Rate (CPS)              : 74751

                            Rx Cells with Header Errors    : 0

                            Tx Cell Discards (Congestion)  : 0

                            Rx Cell Discards (Policing)    : 0

                            Rx Buffer Overflow             : 0

                            Tx Buffer Overflow             : 0

       

      ....................................................................

       

      Shelf:  1  Slot:  A           Total Access System                 07/04/16 14:13

      Unacknowledged Alarms:          MAJOR MINOR       INFO     ONLINE

                                     VC/VP STATISTICS

                        VC/VP Name:

                                 ENDPOINT 1       <->      ENDPOINT 2

         INDEX STATUS   TYPE SLOT PORT VPI  VCI   <->  SLOT PORT VPI  VCI   SRV-CL

            16 ENABLED  PVC  STM1 PORT 11   35    <->  1    1    0    35    nrtVBR

                    --------------------ENDPOINT1--------------------

             Tx Cells            : 14462405    AIS State           : FALSE

             Rx Cells            : 20069728    RDI State           : FALSE

             Rx OAM Cells        : 0           Discarded CLP=0+1   : 0

             Discarded CLP=0     : 0           Tagged CLP=0 Cells  : 0

       

       

                    --------------------ENDPOINT2--------------------

             Tx Cells            : 20069796    AIS State           : FALSE

             Rx Cells            : 14462480    RDI State           : FALSE

             Rx OAM Cells        : 0           Discarded CLP=0+1   : 0

             Discarded CLP=0     : 0           Tagged CLP=0 Cells  : 0