Для пи****ов теоретиков Cisco 2821 по-крайней мере у меня лопатит 150 Мегабит вообще по Cisco Документации производительность 87.04 Мегабит при 170000 пакетов 64 байта
Зачем при ограниченном бюджете покупать за 14-16к 7200 NPEG 2 с производительностью 600-700 Мегабит. 
Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), Version 12.4(11)T
3, RELEASE SOFTWARE (fc4)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Wed 11-Jul-07 16:47 by prod_rel_team
ROM: System Bootstrap, Version 12.4(1r) [hqluong 1r], RELEASE SOFTWARE (fc1)
core-rr0-ge0-0-10.interlink.com.ua uptime is 5 days, 14 hours, 32 minutes
System returned to ROM by reload at 00:02:00 UTC Tue Nov 30 1999
System image file is "flash:c2800nm-adventerprisek9-mz.124-11.T3.bin"
GigabitEthernet0/0 is up, line protocol is up
  Hardware is MV96340 Ethernet, address is 0019.5699.1e60 (bia 0019.5699.1e60)
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 11/255, rxload 35/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  1., loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/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
  Input queue: 0/75/899/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 140223000 bits/sec, 16829 packets/sec
  5 minute output rate 45415000 bits/sec, 13758 packets/sec
     826919754 packets input, 1936132816 bytes, 165 no buffer
     Received 11 broadcasts, 714279 runts, 0 giants, 307 throttles
     717677 input errors, 0 CRC, 0 frame, 38 overrun, 3360 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     723190661 packets output, 630650221 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 babbles, 0 late collision, 0 deferred
core-rr0-ge0-0-10.interlink.com.ua   09:11:21 AM Friday Apr 17 2009 UTC
    666666666666666666666666666666666666666666666666666666666666
    888899999777777777777777666668888866666666668888877777777777
100
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   0....5....1....1....2....2....3....3....4....4....5....5....6
             0    5    0    5    0    5    0    5    0    5    0
               CPU% per second (last 60 seconds)
    666666666555555555544445446444444555444445555555555555555555
    898779851542644332298860660856677010898873421304342104421422
100
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   0....5....1....1....2....2....3....3....4....4....5....5....6
             0    5    0    5    0    5    0    5    0    5    0
               CPU% per minute (last 60 minutes)
              * = maximum CPU%   # = average CPU%