jumbo frame на cisco Nexus 5000

Как-то примерно так:

policy-map jumbo
  class class-default
    mtu 9216
system qos
  service-policy jumbo

А почему пишу, потому что смотрим на интерфейс:

5020# show interface e1/1
Ethernet1/1 is up
  Hardware is 1000/10000 Ethernet, address is 000d.ec6d.c548 (bia 000d.ec6d.c548)
  MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA
  Port mode is access
  full-duplex, 10 Gb/s, media type is 1/10g
  Input flow-control is off, output flow-control is off
  Auto-mdix is turned on
  Rate mode is dedicated
  Switchport monitor is off
  Last clearing of "show interface" counters never
  5 minute input rate 382 bytes/sec, 0 packets/sec
  5 minute output rate 31 bytes/sec, 0 packets/sec
  Rx
    63 input packets 0 unicast packets 32 multicast packets
    31 broadcast packets 14 jumbo packets 0 storm suppression packets
    133750 bytes
    0 No buffer 0 runt 0 Overrun
    0 crc 0 Ignored 0 Bad etype drop
    0 Bad proto drop
  Tx
    1019 output packets 1019 multicast packets
    10 broadcast packets 19 jumbo packets
    78417 bytes
    0 output CRC 0 ecc
    0 underrun 0 if down drop     0 output error 0 collision 0 deferred
    0 late collision 0 lost carrier 0 no carrier
    0 babble
    0 Rx pause 0 Tx pause 0 reset

5020# 

И то, что «MTU 1500 bytes» это так и нужно, что вы враги видимо запутались, а вот подтверждение что все работает — это параметр «14 jumbo packets» в Rx или Tx.

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