This article explains how to query ASIC drops for different queues using snmp/MIB.
{master:0} root@qfx> show interfaces queue xe-0/0/36:2 Physical interface: xe-0/0/36:2, Enabled, Physical link is Up Interface index: 652, SNMP ifIndex: 522 Description: qfx10002-lab Forwarding classes: 16 supported, 4 in use Egress queues: 8 supported, 4 in use Queue: 0, Forwarding classes: best-effort Queued: Packets : 56931013242 290315 pps Bytes : 286012518577662 11678661624 bps Transmitted: Packets : 48801703945 248805 pps Bytes : 244860250796204 9998839240 bps Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps Total-dropped packets: 8129309297 41510 pps Total-dropped bytes : 41152267781458 1679822384 bps Queue: 3, Forwarding classes: fcoe Queued: Packets : 0 0 pps Bytes : 0 0 bps Transmitted: Packets : 0 0 pps Bytes : 0 0 bps Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps Total-dropped packets: 0 0 pps Total-dropped bytes : 0 0 bps Queue: 4, Forwarding classes: no-loss Queued: Packets : 0 0 pps Bytes : 0 0 bps Transmitted: Packets : 0 0 pps Bytes : 0 0 bps Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps Total-dropped packets: 0 0 pps Total-dropped bytes : 0 0 bps Queue: 7, Forwarding classes: network-control Queued: Packets : 201019 0 pps Bytes : 32309428 1152 bps Transmitted: Packets : 201019 0 pps Bytes : 32309428 1152 bps Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps Total-dropped packets: 0 0 pps Total-dropped bytes : 0 0 bps
There are 2 MIBs to query the total dropped packets:
jnxCosQstatTotalDropPkts
jnxCosQstatTotalDropPktRate
{master:0} root@qfx
show interfaces queue xe-0/0/36:2 | match "Queue:|drop" Queue: 0, Forwarding classes: best-effort Queued: Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps
Total-dropped packets: 8272069913 41441 pps
Total-dropped bytes : 41874432460484 1675329520 bps Queue: 3, Forwarding classes: fcoe Queued: Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps Total-dropped packets: 0 0 pps Total-dropped bytes : 0 0 bps Queue: 4, Forwarding classes: no-loss Queued: Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps Total-dropped packets: 0 0 pps Total-dropped bytes : 0 0 bps Queue: 7, Forwarding classes: network-control Queued: Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps Total-dropped packets: 0 0 pps Total-dropped bytes : 0 0 bps
For example, If you want to query the total number of packets dropped on queue 0 (best effort), specify the interface index and the queue number to get the output.
{master:0} root@qfx> show interfaces queue xe-0/0/36:2 | match "Queue:|drop|SNMP" Interface index: 652, SNMP ifIndex: 522 <-- interface snmp index number Queue: 0, Forwarding classes: best-effort
Queue: 0, Forwarding classes: best-effort
<-- <Queue number 0 (best Effort)</code>
Queued: Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps Total-dropped packets: 8306456612 41574 pps <-- packets dropped on the queue and their rate Total-dropped bytes : 42048360999465 1683224608 bps Queue: 3, Forwarding classes: fcoe Queued: Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps Total-dropped packets: 0 0 pps Total-dropped bytes : 0 0 bps Queue: 4, Forwarding classes: no-loss Queued: Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps Total-dropped packets: 0 0 pps Total-dropped bytes : 0 0 bps Queue: 7, Forwarding classes: network-control Queued: Tail-dropped packets : Not Available RL-dropped packets : 0 0 pps RL-dropped bytes : 0 0 bps Total-dropped packets: 0 0 pps
{master:0} root@qfx> show snmp mib get jnxCosQstatTotalDropPkts.522.0 jnxCosQstatTotalDropPkts.522.0 = 8306456612
{master:0} root@qfx> show snmp mib get jnxCosQstatTotalDropPktRate.522.0 jnxCosQstatTotalDropPktRate.522.0 = 41574
snmpwalk [options] [community string/authentification information] [host name/address] [OID] juniper@server1:~$ snmpwalk -v2c -c JUNIPER 10.85.150.190 1.3.6.1.4.1.2636.3.15.4.1.54.522 <-- This gives the drops for all queues iso.3.6.1.4.1.2636.3.15.4.1.54.522.0 = Counter64: 41574 iso.3.6.1.4.1.2636.3.15.4.1.54.522.1 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.54.522.2 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.54.522.3 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.54.522.4 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.54.522.5 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.54.522.6 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.54.522.7 = Counter64: 0 juniper@test-113:~$ snmpwalk -v2c -c JUNIPER 10.85.150.190 1.3.6.1.4.1.2636.3.15.4.1.54.522.0 <-- This gives the drops for queue 0 iso.3.6.1.4.1.2636.3.15.4.1.54.522.0 = Counter64: 41574
snmpwalk [options] [community string/authentification information] [host name/address] [OID]
juniper@jtac-server1:~$ snmpwalk -v2c -c JUNIPER 10.85.150.190 1.3.6.1.4.1.2636.3.15.4.1.53.522 iso.3.6.1.4.1.2636.3.15.4.1.53.522.0 = Counter64: 8306456612 iso.3.6.1.4.1.2636.3.15.4.1.53.522.1 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.53.522.2 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.53.522.3 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.53.522.4 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.53.522.5 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.53.522.6 = Counter64: 0 iso.3.6.1.4.1.2636.3.15.4.1.53.522.7 = Counter64: 0 juniper@test-113:~$ snmpwalk -v2c -c JUNIPER 10.85.150.190 1.3.6.1.4.1.2636.3.15.4.1.53.522.0 iso.3.6.1.4.1.2636.3.15.4.1.53.522.0 = Counter64: 8362625096
8306456612