Re: WS-C4500X-16 Drops

Moudar · ‎01-31-2023

We got our WS-C4500X-16 as our main router.

Some ports which are ten gig ports shows some drops and other things.

We have some people complaning every now and then, I mean not continuously (bad connection, speed, etc, on wired and wireless networks) and I wanted to know if these little drops have anything to do with that.

What does "oversize" mean on WLC ports?

What does "Tx-Drops-Queue-8" mean?

What does "CrcAlign-Err" mean?

these counters are increasing very slowly, and the switch uptime is 33 weeks, 5 days, 19 hours, 51 minutes.

Ports 3-4,13-16 are attached to Cisco WLC

Port 8 is MPLS

Ports 9-10 are connected to two Nexus switches

Port            CrcAlign-Err Dropped-Bad-Pkts Collisions   Symbol-Err
Te1/3                      0                0          0            0

Port               Undersize  Oversize  Fragments      Jabbers
Te1/3                      0       177          0            0

Port              Single-Col Multi-Col   Late-Col   Excess-Col
Te1/3                      0         0          0            0

Port            Deferred-Col False-Car  Carri-Sen Sequence-Err
Te1/3                      0         0          0            0



Port            CrcAlign-Err Dropped-Bad-Pkts Collisions   Symbol-Err
Te1/4                      4                0          0            0

Port               Undersize  Oversize  Fragments      Jabbers
Te1/4                      0       122          0            0

Port              Single-Col Multi-Col   Late-Col   Excess-Col
Te1/4                      0         0          0            0

Port            Deferred-Col False-Car  Carri-Sen Sequence-Err
Te1/4                      0         0          0            0



Port            CrcAlign-Err Dropped-Bad-Pkts Collisions   Symbol-Err
Te1/13                     0                0          0            0

Port               Undersize  Oversize  Fragments      Jabbers
Te1/13                     0        99          0            0

Port              Single-Col Multi-Col   Late-Col   Excess-Col
Te1/13                     0         0          0            0

Port            Deferred-Col False-Car  Carri-Sen Sequence-Err
Te1/13                     0         0          0            0



Port            CrcAlign-Err Dropped-Bad-Pkts Collisions   Symbol-Err
Te1/16                     0                0          0            0

Port               Undersize  Oversize  Fragments      Jabbers
Te1/16                     0       199          0            0

Port              Single-Col Multi-Col   Late-Col   Excess-Col
Te1/16                     0         0          0            0

Port            Deferred-Col False-Car  Carri-Sen Sequence-Err
Te1/16                     0         0          0            0





Port            Tx-Drops-Queue-1  Tx-Drops-Queue-2 Tx-Drops-Queue-3  Tx-Drops-Queue-4
Te1/9                          0                 0                0                 0

Port            Tx-Drops-Queue-5  Tx-Drops-Queue-6 Tx-Drops-Queue-7  Tx-Drops-Queue-8
Te1/9                          0                 0                0              1912

Port            Dbl-Drops-Queue-1 Dbl-Drops-Queue-2 Dbl-Drops-Queue-3 Dbl-Drops-Queue-4
Te1/9                           0                 0                 0                 0

Port            Dbl-Drops-Queue-5 Dbl-Drops-Queue-6 Dbl-Drops-Queue-7 Dbl-Drops-Queue-8
Te1/9                           0                 0                 0                 0

Port              Rx-No-Pkt-Buff     RxPauseFrames    TxPauseFrames   PauseFramesDrop
Te1/9                          0                 0                0                 0

Port            UnsupOpcodePause
Te1/9                          0



Port            Tx-Drops-Queue-1  Tx-Drops-Queue-2 Tx-Drops-Queue-3  Tx-Drops-Queue-4
Te1/10                         0                 0                0                 0

Port            Tx-Drops-Queue-5  Tx-Drops-Queue-6 Tx-Drops-Queue-7  Tx-Drops-Queue-8
Te1/10                         0                 0                0             19796

Port            Dbl-Drops-Queue-1 Dbl-Drops-Queue-2 Dbl-Drops-Queue-3 Dbl-Drops-Queue-4
Te1/10                          0                 0                 0                 0

Port            Dbl-Drops-Queue-5 Dbl-Drops-Queue-6 Dbl-Drops-Queue-7 Dbl-Drops-Queue-8
Te1/10                          0                 0                 0                 0

Port              Rx-No-Pkt-Buff     RxPauseFrames    TxPauseFrames   PauseFramesDrop
Te1/10                         0                 0                0                 0

Port            UnsupOpcodePause
Te1/10                         0




Port            Tx-Drops-Queue-1  Tx-Drops-Queue-2 Tx-Drops-Queue-3  Tx-Drops-Queue-4
Te1/8                          0                 0                0                 0

Port            Tx-Drops-Queue-5  Tx-Drops-Queue-6 Tx-Drops-Queue-7  Tx-Drops-Queue-8
Te1/8                          0                 0                0              1412

Port            Dbl-Drops-Queue-1 Dbl-Drops-Queue-2 Dbl-Drops-Queue-3 Dbl-Drops-Queue-4
Te1/8                           0                 0                 0                 0

Port            Dbl-Drops-Queue-5 Dbl-Drops-Queue-6 Dbl-Drops-Queue-7 Dbl-Drops-Queue-8
Te1/8                           0                 0                 0                 0

Port              Rx-No-Pkt-Buff     RxPauseFrames    TxPauseFrames   PauseFramesDrop
Te1/8                          0                 0                0                 0

Port            UnsupOpcodePause
Te1/8                          0

balaji.bandi · ‎01-31-2023

based on the input, for not i do not see major issue, you need check other things also post complete show interface x/x output where you see some numbers and Queues and oversizes to look what is wrong. also suggest to change the patches, also clear the counters and observer.

Slowness - you need to define - is this internet slow, Local network, or your Server access.

if you have NMS what is the CPU and interface utlisation that time when the user complained.

This could be issue in the path what is the Slow users complaining. so you need to find what is the source and what desitnation which have slow connection.

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/12027-53.html

check this view explained interface counters and errors :

https://www.youtube.com/watch?v=RLgc5IBD5XY

BB

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How to Ask The Cisco Community for Help

Moudar · ‎01-31-2023

on port 1/8 i can see "media type is 10GBase-ER-*" what does this mean? can it be the SFP? We are using other vendor SFP! but all other SPFs are the same vendor.

TenGigabitEthernet1/8 is up, line protocol is up (connected)
  Hardware is Ten Gigabit Ethernet Port, address is c08c.60e0.5397 (bia c08c.60e0.5397)
  Description: Ringen
  MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 35/255, rxload 38/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 10Gb/s, link type is auto, media type is 10GBase-ER-*
  input flow-control is on, output flow-control is on
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 1412
  Queueing strategy: Class-based queueing
  Output queue: 0/40 (size/max)
  5 minute input rate 1494039000 bits/sec, 215532 packets/sec
  5 minute output rate 1408107000 bits/sec, 222619 packets/sec
     1118876575427 packets input, 983172688496716 bytes, 0 no buffer
     Received 3279229927 broadcasts (1509924365 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     1113666462530 packets output, 803467457396711 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out




TenGigabitEthernet1/3 is up, line protocol is up (connected)
  Hardware is Ten Gigabit Ethernet Port, address is c08c.60e0.5392 (bia c08c.60e0.5392)
  Description: Controller .148
  MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 10Gb/s, link type is auto, media type is 10GBase-LR
  input flow-control is on, output flow-control is on
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:16, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 1
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 1000 bits/sec, 1 packets/sec
  5 minute output rate 55000 bits/sec, 82 packets/sec
     256541694088 packets input, 190738025367141 bytes, 0 no buffer
     Received 333656456 broadcasts (28586748 multicasts)
     0 runts, 177 giants, 0 throttles
     177 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     209238514649 packets output, 173242280094942 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out




TenGigabitEthernet1/16 is up, line protocol is up (connected)
  Hardware is Ten Gigabit Ethernet Port, address is c08c.60e0.539f (bia c08c.60e0.539f)
  Description: Controller .148
  MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 10Gb/s, link type is auto, media type is 10GBase-LR
  input flow-control is on, output flow-control is on
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:32, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 1000 bits/sec, 1 packets/sec
  5 minute output rate 56000 bits/sec, 65 packets/sec
     250868545806 packets input, 182789999298600 bytes, 0 no buffer
     Received 348223822 broadcasts (27126692 multicasts)
     0 runts, 199 giants, 0 throttles
     199 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     225283713275 packets output, 191981597458427 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out


TenGigabitEthernet1/4 is up, line protocol is up (connected)
  Hardware is Ten Gigabit Ethernet Port, address is c08c.60e0.5393 (bia c08c.60e0.5393)
  Description: Controller .147
  MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 11/255, rxload 11/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 10Gb/s, link type is auto, media type is 10GBase-LR
  input flow-control is on, output flow-control is on
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:27, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 437648000 bits/sec, 71403 packets/sec
  5 minute output rate 445159000 bits/sec, 65933 packets/sec
     105474197588 packets input, 78011830012801 bytes, 0 no buffer
     Received 91053982 broadcasts (8043976 multicasts)
     0 runts, 122 giants, 0 throttles
     126 input errors, 4 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     89650981474 packets output, 75189146619233 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out



TenGigabitEthernet1/13 is up, line protocol is up (connected)
  Hardware is Ten Gigabit Ethernet Port, address is c08c.60e0.539c (bia c08c.60e0.539c)
  Description: Controller .147
  MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 9/255, rxload 10/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 10Gb/s, link type is auto, media type is 10GBase-LR
  input flow-control is on, output flow-control is on
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:40, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 411293000 bits/sec, 66769 packets/sec
  5 minute output rate 383656000 bits/sec, 58584 packets/sec
     103266066858 packets input, 76000364039318 bytes, 0 no buffer
     Received 100685198 broadcasts (7911697 multicasts)
     0 runts, 99 giants, 0 throttles
     99 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     86515175608 packets output, 74947202955989 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out




TenGigabitEthernet1/9 is up, line protocol is up (connected)
  Hardware is Ten Gigabit Ethernet Port, address is c08c.60e0.5398 (bia c08c.60e0.5398)
  Description: Nexus-port 1/46
  MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 26/255, rxload 27/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 10Gb/s, link type is auto, media type is 10GBase-LR
  input flow-control is on, output flow-control is on
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:09, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 1912
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 1076810000 bits/sec, 175284 packets/sec
  5 minute output rate 1048992000 bits/sec, 158411 packets/sec
     1005619507387 packets input, 752539329260180 bytes, 0 no buffer
     Received 2670510079 broadcasts (2578662805 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     897433081288 packets output, 730599102315452 bytes, 0 underruns
     0 output errors, 0 collisions, 6 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out




TenGigabitEthernet1/10 is up, line protocol is up (connected)
  Hardware is Ten Gigabit Ethernet Port, address is c08c.60e0.5399 (bia c08c.60e0.5399)
  Description: Nexus-port 1/46
  MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 22/255, rxload 20/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 10Gb/s, link type is auto, media type is 10GBase-LR
  input flow-control is on, output flow-control is on
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:06, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 19796
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 814352000 bits/sec, 130051 packets/sec
  5 minute output rate 888119000 bits/sec, 146305 packets/sec
     759823046202 packets input, 604748251006857 bytes, 0 no buffer
     Received 670148349 broadcasts (558638349 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     927096116187 packets output, 721053170401102 bytes, 0 underruns
     0 output errors, 0 collisions, 6 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out