Wired Intelligent Edge

Dear All Expert

Good Day, May I know what is Drop Tx and Collision Tx?

 

Best Regards

Chee Wong

Drop Tx are the packets that are dropped during the transmission on that port, The collision Tx kind of indicate a mismatch on port duplex setting. caused by half duplex seeting. Make sure the client is set to auto-negotiate.

Hi all,

I looking for more information about Drop Tx to better understand it.
Is Drops Tx the index of congestion?

Here an example of Drops Tx when I download a large file from a local file server.
I have no Drops Tx when I upload the same (large) file from the NB to the server.

I have an old HP 2620-24 version RA.16.04.0023
which has 24 FastEthernet ports and 2 GigabitEthernet ports.

I have Drops Tx packets when I download a large file (2 GB) from a local fileserver.
To be clear:
I have a NB connected to Switch2620:Port10 (NB ethernet speed is 100 Mbps when connected to the switch)
The Switch2620 has a 2Gigabit Trunk to a CoreSwitch
The fileserver is connected to the CoreSwitch.



Here the interface statistics

2620F24# show interfaces 10

 Status and Counters - Port Counters for port 10

  Name  : 
  MAC Address      : 288023-46e5f6
  Link Status      : Up
  Port Enabled     : Yes
  Totals (Since boot or last clear) :
   Bytes Rx        : 67,868,849           Bytes Tx        : 2,319,675,630
   Unicast Rx      : 893,004              Unicast Tx      : 1,548,669
   Bcast/Mcast Rx  : 134                  Bcast/Mcast Tx  : 5,330
  Errors (Since boot or last clear) :
   FCS Rx          : 0                    Drops Tx        : 542
   Alignment Rx    : 0                    Collisions Tx   : 0
   Runts Rx        : 0                    Late Colln Tx   : 0
   Giants Rx       : 0                    Excessive Colln : 0
   Total Rx Errors : 0                    Deferred Tx     : 0
  Others (Since boot or last clear) :
   Discard Rx      : 0                    Out Queue Len   : 0
   Unknown Protos  : 0
  Rates (5 minute weighted average) :
   Total Rx (bps) : 1,080,360             Total Tx (bps) : 32,729,608
   Unicast Rx (Pkts/sec) : 1,554          Unicast Tx (Pkts/sec) : 2,655
   B/Mcast Rx (Pkts/sec) : 0              B/Mcast Tx (Pkts/sec) : 1
   Utilization Rx  : 01.08 %              Utilization Tx  : 32.72 %
​

A02-2620F24# show system information

 Status and Counters - General System Information

  System Name        : 2620F24
  System Contact     :
  System Location    :

  MAC Age Time (sec) : 300

  Time Zone          : 60
  Daylight Time Rule : Western-Europe

  Software revision  : RA.16.04.0023        Base MAC Addr      : 288023-46e5e0
  ROM Version        : RA.15.13             Serial Number      : CN52DRR0HS

  Up Time            : 21 days              Memory   - Total   : 134,217,728
  CPU Util (%)       : 6                               Free    : 103,715,136

  IP Mgmt  - Pkts Rx : 8,488,812            Packet   - Total   : 3022
             Pkts Tx : 7,969,832            Buffers    Free    : 2832
                                                       Lowest  : 2773
                                                       Missed  : 0

2620F24#

Original Message:
Sent: Jan 19, 2020 05:31 PM
From: Ariya Parsamanesh
Subject: what is Drop TX and Collison TX

Drop Tx are the packets that are dropped during the transmission on that port, The collision Tx kind of indicate a mismatch on port duplex setting. caused by half duplex seeting. Make sure the client is set to auto-negotiate.