network cisco ccna gns3 certification arteq

network cisco ccna gns3 certification arteq
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Saturday, February 25, 2012


notice the aggregated bandwidth upon showing the channel...

dsw1#sh int po1
Port-channel1 is up, line protocol is up (connected)
  Hardware is EtherChannel, address is 000f.8ffe.0980 (bia 000f.8ffe.0980)
  Internet address is
  MTU 1500 bytes, BW 200000 Kbit, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, media type is 10/100BaseTX

can't get that with spanning tree in effect, but...
there are two trunk links per 2950 switch from each dsw as in the diagram... the channel is conspicuously missing from the out put of spanning tree...

  Spanning tree enabled protocol ieee
  Root ID    Priority    20490
             Address     000f.8ffe.0980
             This bridge is the root
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    20490  (priority 20480 sys-id-ext 10)
             Address     000f.8ffe.0980
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time 300

Interface           Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------

Fa0/3               Desg FWD 19        128.3    P2p
Fa0/4               Desg FWD 19        128.4    P2p

and in the output of sh vlan brief the channel (fa0/1 - 2) as well as both fa0/3 and 4 are all missing... they're kinda busy...

dsw1#sh vlan brie

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Gi0/1, Gi0/2
10   data                             active    Fa0/6, Fa0/7, Fa0/8, Fa0/9
                                                Fa0/10, Fa0/11, Fa0/12, Fa0/13
                                                Fa0/14, Fa0/15, Fa0/16, Fa0/17
                                                Fa0/18, Fa0/19, Fa0/20, Fa0/21
                                                Fa0/22, Fa0/23, Fa0/24

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