>>Коллеги, подскажите.
>>
>>Установил в маршрутизатор 2811 интерфейсную карту HWIC-4ESW (4 Eth порта).
>>Хотел внутренний интерфейс маршрутизатора подключить в стек коммутаторов через EtherChannel. Это сделать
>>не удалось, ни на встроеннных портах, ни на HWIC.
>>
>>Кто нибуль сталкивался с таким вопросом, подключение рутера 2811 с использованием EtherChannel
>>?
>
>не умеет.

Путем проб и ошибок удалесь все-таки поднять FEC между 3750 и 2811.
Конфиг следующий
====================================
С3750
interface Port-channel2
switchport trunk encapsulation dot1q
switchport mode trunk
interface GigabitEthernet1/0/1
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 2 mode on
interface GigabitEthernet2/0/1
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 2 mode on
------
sh etherchannel 2 summary
Flags:  D - down        P - bundled in port-channel
        I - stand-alone s - suspended
        H - Hot-standby (LACP only)
        R - Layer3      S - Layer2
        U - in use      f - failed to allocate aggregator

        M - not in use, minimum links not met
        u - unsuitable for bundling
        w - waiting to be aggregated
        d - default port

Number of channel-groups in use: 6
Number of aggregators:           6

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
2      Po2(SU)          -        Gi1/0/1(P)  Gi2/0/1(P)  
================================================
Router
interface Port-channel1
no ip address
hold-queue 150 in
!
interface Port-channel1.240
encapsulation dot1Q 240
ip address x.y.z.v 255.255.255.0
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
channel-group 1
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
channel-group 1
!        
------
sh interfaces port-channel 1      
Port-channel1 is up, line protocol is up
  Hardware is FEChannel, address is 0023.04b0.d5e8 (bia 0023.04b0.d5e8)
  MTU 1500 bytes, BW 200000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  1., loopback not set
  Keepalive set (10 sec)
  ARP type: ARPA, ARP Timeout 04:00:00
    No. of active members in this channel: 2
        Member 0 : FastEthernet0/1 , Full-duplex, 100Mb/s
        Member 1 : FastEthernet0/0 , Full-duplex, 100Mb/s
    No. of Non-active members in this channel: 0
    No. of PF_JUMBO supported members in this channel : 0
  Last input 00:00:00, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/150/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/80 (size/max)
  5 minute input rate 8000 bits/sec, 11 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     7638 packets input, 605969 bytes
     Received 7624 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog
     0 input packets with dribble condition detected
     44 packets output, 4732 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     49 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
===============================================================