Re: Interfaces errors and latency spikes with Intel 82583V

Fri, 12 Jun 2020 00:27:11 -0700 

Flow control is off and pause frames counters shows 0 packets:

GigabitEthernet0/23 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet
  Description: FRW-FW1-OUT
  MTU 1500 bytes, BW 1000000 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, 1000Mb/s, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 00:00:01, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 3000 bits/sec, 5 packets/sec
  5 minute output rate 115000 bits/sec, 5 packets/sec
     974201764 packets input, 216703921981 bytes, 0 no buffer
     Received 12293 broadcasts (114 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 114 multicast, 0 pause input
     0 input packets with dribble condition detected
     2218244753 packets output, 2712046308343 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out


On 2020-06-11 22:52, David Gwynne wrote:

are there any config options on the switch site relating to flow
control you can try turning off? are there any counters for pause
frames on the switch side too?

dlg


On 12 Jun 2020, at 12:16 pm, Gabri Tofano <[email protected]> wrote:

Apparently it is not:

#ifconfig em0 hwfeatures
em0: flags=808843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF4> mtu 1500 hwfeatures=36<CSUM_TCPv4,CSUM_UDPv4,VLAN_MTU,VLAN_HWTAGGING> hardmtu 9216 
       lladdr XX:XX:XX:XX:XX:XX
       index 1 priority 0 llprio 3
       groups: egress
       media: Ethernet autoselect (1000baseT full-duplex)
       status: active
       inet XX:XX:XX:XX netmask 0xffffff00 broadcast XX:XX:XX:XX


On 2020-06-11 21:57, David Gwynne wrote:

Is flow control enabled? Can you try disabling rxpause and txpause?

On 12 Jun 2020, at 10:36 am, Gabri Tofano <[email protected]> wrote:
Yes, this is today without resetting the interface:
#netstat -ie
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Colls em0 1500 <Link> XX:XX:XX:XX:XX:XX 5351463 1868 3016695 0 0 em0 1500 XX:XX:XX:XX XX:XX:XX:XX:XX:XX 5351463 1868 3016695 0 0 em1 1500 <Link> XX:XX:XX:XX:XX:XX 2839738 0 5147702 0 0 em1 1500 172.16.200. XX:XX:XX:XX:XX:XX 2839738 0 5147702 0 0 em2 1500 <Link> XX:XX:XX:XX:XX:XX 46977 0 44135 0 0 em2 1500 172.16.103/ XX:XX:XX:XX:XX:XX 46977 0 44135 0 0 em3* 1500 <Link> 00:e0:67:10:9d:97 0 0 0 0 0 enc0* 0 <Link> 0 0 0 0 0 pflog0 33136 <Link> 0 0 128982 0 0 
On 2020-06-11 20:29, David Gwynne wrote:

Is it consistently Ierrs?
dlg
On 11 Jun 2020, at 10:14 pm, Gabri Tofano <[email protected]> wrote: 
#netstat -id
Name Mtu Network Address Ipkts Idrop Opkts Odrop Colls em0 1500 <Link> XX:XX:XX:XX:XX:XX 266894 0 202813 0 0 em0 1500 XX.XX.XX.XX XX:XX:XX:XX:XX:XX 266894 0 202813 0 0 em1 1500 <Link> XX:XX:XX:XX:XX:XX 170280 0 230226 1 0 em1 1500 172.16.200. XX:XX:XX:XX:XX:XX 170280 0 230226 1 0 em2 1500 <Link> XX:XX:XX:XX:XX:XX 15788 0 13249 2 0 em2 1500 172.16.103/ XX:XX:XX:XX:XX:XX 15788 0 13249 2 0 em3* 1500 <Link> XX:XX:XX:XX:XX:XX 0 0 0 0 0 enc0* 0 <Link> 0 0 0 0 0 pflog0 33136 <Link> 0 0 29771 0 0 
#netstat -ie
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Colls em0 1500 <Link> XX:XX:XX:XX:XX:XX 269713 72 205469 0 0 em0 1500 XX.XX.XX.XX XX:XX:XX:XX:XX:XX 269713 72 205469 0 0 em1 1500 <Link> XX:XX:XX:XX:XX:XX 172137 0 232148 0 0 em1 1500 172.16.200. XX:XX:XX:XX:XX:XX 172137 0 232148 0 0 em2 1500 <Link> XX:XX:XX:XX:XX:XX 15892 0 13316 0 0 em2 1500 172.16.103/ XX:XX:XX:XX:XX:XX 15892 0 13316 0 0 em3* 1500 <Link> XX:XX:XX:XX:XX:XX 0 0 0 0 0 enc0* 0 <Link> 0 0 0 0 0 pflog0 33136 <Link> 0 0 30174 0 0 
#systat queues
QUEUE BW/FL SCH PKTS BYTES DROP_P DROP_B QLEN BORROW SUSPEN P/S B/S main on em0 120M fifo 0 0 0 0 0 defq 100M fifo 139394 21574411 0 0 0 voip 10M fifo 34699 4949635 0 0 0 games 10M fifo 32277 2460807 0 0 0 
Thank you!
Gabri

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