sh int gig0/0
GigabitEthernet0/0 is up, line protocol is up
  Hardware is MV96340 Ethernet, address is 001d.709e.fe00 (bia 001d.709e.fe00)
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 96/255, rxload 99/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  1., loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, media type is T
  output flow-control is XON, input flow-control is XON
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters never

Возможно ли как-то отключить
output flow-control is XON, input flow-control is XON
на интерфейсе?
www.cisco.com ответа не дал,
С 72-ой серии команды типа negotiation в 28-ой нет вообще,
flow - есть только flow-sampler....
???
Включена кошка в 2950 на котором flow-control unsupported.