>[оверквотинг удален]
>>  ip address 176.xxx.yyy.1 255.255.255.0
>>  no ip redirects
>>  no ip unreachables
>>  no ip proxy-arp
>>  no ip mroute-cache
>> Что может быть тут не так?
> Как меряли? что говорит sh int в это время? какова общая нагрузка
> на фабрику?
> Вообще на этот модуль вагон условий/ограничений
> http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/io...

Data_main#sh int giga 7/14
GigabitEthernet7/14 is up, line protocol is up (connected)
  Hardware is C6k 1000Mb 802.3, address is 0013.1a80.fa25 (bia 0013.1a80.fa25)
  Description: --# Segment 176.119.0.0/24
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 32/255, rxload 2/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is 10/100/1000BaseT
  input flow-control is off, output flow-control is off
  Clock mode is auto
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, output hang never
  Last clearing of "show interface" counters 00:08:09
  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 10789000 bits/sec, 5930 packets/sec
  5 minute output rate 127143000 bits/sec, 13136 packets/sec
     2804796 packets input, 727163595 bytes, 0 no buffer
     Received 12 broadcasts (0 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     6248341 packets output, 7681929916 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     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

Как посмотреть общую нагрузку на фабрику?
Data_main#sh fabric utilization
slot    channel      speed    Ingress %     Egress %
    1          0        20G            0            0
    1          1        20G            3            1
    2          0        20G            0            0
    2          1        20G            1            1
    3          0        20G            0            0
    3          1        20G            1            3
    4          0        20G            0            0
    4          1        20G            0            0
    5          0        20G            0            0
    6          0         8G            0            0
    7          0        20G            0            0
    7          1        20G            0            1
    8          0         8G            0            0
    9          0         8G            0            0
Это оно?