>Покажите sh int fa 0/3 controller
>И лучше еще конфиг.
>Плюс к этому, 79 дропов за день это не так уж много.
>;)

Что касаеться 79 дропов не так уж и много  , просо пугает сам факт их !

c2960mr#sh int fa 0/5 controller
FastEthernet0/5 is up, line protocol is up (connected)
  Hardware is Fast Ethernet, address is 001e.bd57.ca85 (bia 001e.bd57.ca85)
  Description: Beily3 to Port-channel1.92
  MTU 1508 bytes, BW 10000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 6/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 10Mb/s, media type is 10/100BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 00:00:00, output hang never
  Last clearing of "show interface" counters 00:21:27
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 15
  Queueing strategy: fifo
  Output queue: 0/0 (size/max)
  5 minute input rate 73000 bits/sec, 32 packets/sec
  5 minute output rate 256000 bits/sec, 35 packets/sec
     42122 packets input, 8543169 bytes, 0 no buffer
     Received 8 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
     48795 packets output, 44131026 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

     Transmit FastEthernet0/5                 Receive
   3307328545 Bytes                       2608102320 Bytes
      9099319 Unicast frames                 7803898 Unicast frames
       456393 Multicast frames                     4 Multicast frames
            0 Broadcast frames                  5294 Broadcast frames
            0 Too old frames              2520153756 Unicast bytes
            0 Deferred frames                    256 Multicast bytes
            0 MTU exceeded frames             776088 Broadcast bytes
            0 1 collision frames                   0 Alignment errors
            0 2 collision frames              115209 FCS errors
            0 3 collision frames                   0 Oversize frames
            0 4 collision frames                   0 Undersize frames
            0 5 collision frames             1018610 Collision fragments
            0 6 collision frames
            0 7 collision frames             4290773 Minimum size frames
            0 8 collision frames             1233757 65 to 127 byte frames
            0 9 collision frames              314248 128 to 255 byte frames
            0 10 collision frames             426636 256 to 511 byte frames
            0 11 collision frames             554804 512 to 1023 byte frames
            0 12 collision frames            1104060 1024 to 1518 byte frames
            0 13 collision frames                  0 Overrun frames
            0 14 collision frames                  0 Pause frames
            0 15 collision frames
            0 Excessive collisions                 0 Symbol error frames
            0 Late collisions                    127 Invalid frames, too large
            0 VLAN discard frames                  0 Valid frames, too large
            0 Excess defer frames            1018610 Invalid frames, too small
      2335140 64 byte frames                       0 Valid frames, too small
      1007735 127 byte frames
       532374 255 byte frames                      0 Too old frames
       811947 511 byte frames                      0 Valid oversize frames
       407505 1023 byte frames                     0 System FCS error frames
      4461011 1518 byte frames                     0 RxPortFifoFull drop frame
            0 Too large frames
            0 Good (1 coll) frames
            0 Good (>1 coll) frames

Config ----------------

c2960mr#sh running-config
Building configuration...

Current configuration : 9012 bytes
!
! Last configuration change at 10:55:00 MSD Tue May 26 2009 by +ksa
! NVRAM config last updated at 16:36:26 MSD Tue May 26 2009 by +ksa
!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log datetime localtime
service password-encryption
!
hostname c2960mr
!
boot-start-marker
boot-end-marker
!
enable secret 5 xxxxxxxxxxxxxx
!
username admin privilege 15 secret 5 xxxxxxxxxxx
aaa new-model
!
!
aaa authentication login default group radius local
aaa authorization exec default group radius local
aaa authorization network default group radius
!
!
!
aaa session-id common
clock timezone MSK 3
clock summer-time MSD recurring last Sun Mar 3:00 last Sun Oct 2:00
system mtu routing 1500
vtp mode transparent
ip subnet-zero
!
!
ip domain-name xxxxxxxxxx

!
mls qos srr-queue input threshold 1 8 16
mls qos srr-queue input threshold 2 34 66

interface FastEthernet0/1
switchport access vlan xx
switchport mode access
switchport nonegotiate
speed 10
no cdp enable
!
interface FastEthernet0/2
switchport access vlan xx
switchport mode access
switchport nonegotiate
load-interval 30
speed 10
!
interface FastEthernet0/3
switchport access vlan xx
switchport mode access
switchport nonegotiate
load-interval 30
speed 10
no cdp enable
!
interface FastEthernet0/4
switchport access vlan xx
switchport mode access
switchport nonegotiate
load-interval 30
speed 10
no cdp enable
!
interface FastEthernet0/5
switchport access vlan xx
switchport mode access
switchport nonegotiate
speed 10
no cdp enable
.
.
.
.
.