Discard Rx count increases on layer 2 switch.

[anudeepsubhash]

CG-DL-1-HSWD-1 is the layer 3 switch( 2930F-48G-4SFP+)
CG-DL-1-HSWB-30 is the layer 2 switch(Aruba 2530 8 Switch )

CG-DL-1-HSWB-30's port 25 --->connects to CG-DL-1-HSWD-1's 1/30

Both the ports are tunk.

We are observing Discard Rx on the port 25 of CG-DL-1-HSWB-30.Can anyone help me to investigate on this.

CG-DL-1-HSWB-30# sh int 25

Status and Counters - Port Counters for port 25

Name : Connectoin to CG-DL-1-HSWD-1|Port:1/30
MAC Address : f860f0-1f2227
Link Status : Up
Port Enabled : Yes
Totals (Since boot or last clear) :
Bytes Rx : 347,920,023 Bytes Tx : 3,144,144,213
Unicast Rx : 9,417,596 Unicast Tx : 10,534,700
Bcast/Mcast Rx : 13,249,755 Bcast/Mcast Tx : 216,477
Errors (Since boot or last clear) :
FCS Rx : 0 Drops Tx : 0
B/Mcast Rx (Pkts/sec) : 9 B/Mcast Tx (Pkts/sec) : 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 : 5,462,895 Out Queue Len : 0
Unknown Protos : 0
Rates (5 minute weighted average) :
Total Rx (bps) : 16,120 Total Tx (bps) : 16,576
Unicast Rx (Pkts/sec) : 5 Unicast Tx (Pkts/sec) : 6
Utilization Rx : 0 % Utilization Tx : 0 %

Below the port config on both the switch.

------------------------------CG-DL-1-HSWB-30---------------------------------------------
CG-DL-1-HSWB-30# sh running-config interface 25

Running configuration:

interface 25
name "Connectoin to CG-DL-1-HSWD-1|Port:1/30"
untagged vlan 1
trunk trk1 lacp
exit

CG-DL-1-HSWB-30# sh running-config interface trk25
Module not present for port or invalid port: trk25
CG-DL-1-HSWB-30# sh running-config interface trk1

Running configuration:

interface Trk1
tagged vlan 100,110,120,247
untagged vlan 1
spanning-tree priority 4
exit

---------------------------------CG-DL-1-HSWD-1------------------------------------------
CG-DL-1-HSWD-1# sh running-config interface trk30

Running configuration:

interface Trk30
tagged vlan 100,110,120,247
untagged vlan 1
spanning-tree priority 4
exit

CG-DL-1-HSWD-1# sh running-config interface 1/30

Running configuration:

interface 1/30
untagged vlan 1
trunk trk30 lacp
exit
---------------------------------------------------------------------------

[akg7]

Hello,

What is the running software version in the device?

Have you tried to replace or swap the tranceiver?

Is Jumbo frame enabled?

Thanks!