Hi,
Rack1SW1#sh spanning-tree vlan 26
VLAN0026
  Spanning tree enabled protocol ieee
  Root ID    Priority    32794
             Address     0011.92ce.1c80
             Cost        19
             Port        16 (FastEthernet0/14)
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
  Bridge ID  Priority    32794  (priority 32768 sys-id-ext 26)
             Address     0018.73f8.ab00
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time 300
Interface           Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- --------
--------------------------------
Fa0/14              Root FWD 19        128.16   P2p
Rack1SW2#sh spanning-tree vlan 26
VLAN0026
  Spanning tree enabled protocol ieee
  Root ID    Priority    32794
             Address     0011.92ce.1c80
             This bridge is the root
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
  Bridge ID  Priority    32794  (priority 32768 sys-id-ext 26)
             Address     0011.92ce.1c80
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time 300
Interface           Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- --------
--------------------------------
Fa0/2               Desg FWD 19        128.4    P2p
Fa0/14              Desg FWD 19        128.16   P2p
Fa0/17              Desg FWD 19        128.19   P2p
Rack1SW3#sh spanning-tree vlan 26
VLAN0026
  Spanning tree enabled protocol ieee
  Root ID    Priority    32794
             Address     0011.92ce.1c80
             Cost        19
             Port        17 (FastEthernet0/17)
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
  Bridge ID  Priority    32794  (priority 32768 sys-id-ext 26)
             Address     0012.d902.0e80
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time 300
Interface           Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- --------
--------------------------------
Fa0/17              Root FWD 19        128.17   P2p
Fa0/19              Desg FWD 19        128.19   P2p
Rack1SW4#sh spanning-tree vlan 26
VLAN0026
  Spanning tree enabled protocol ieee
  Root ID    Priority    32794
             Address     0011.92ce.1c80
             Cost        38
             Port        19 (FastEthernet0/19)
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
  Bridge ID  Priority    32794  (priority 32768 sys-id-ext 26)
             Address     0012.d901.2a00
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time 300
Interface           Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- --------
--------------------------------
Fa0/6               Desg FWD 19        128.6    P2p
Fa0/19              Root FWD 19        128.19   P2p
Regards,
CiscoLeague
On Sun, Jul 12, 2009 at 2:20 PM, S Malik <ccie.09_at_gmail.com> wrote:
> Please make sure the trunk is permitting the Vlan required and ports are in
> forwarding mode. Are R1&R2 in the same Vlan?
>
> Use "sh spantree vlan" on each switch and check the whole path.
>
>
>
> On Sun, Jul 12, 2009 at 8:46 AM, Cisco League <ciscoleague_at_googlemail.com
> >wrote:
>
> > Dear Group,
> >
> > I have spent quite a lot of time in solving this puzzle but could not get
> > my
> > head around it.
> >
> > We have got 4 switches in the following topology
> >
> > SW1 F0/14 <---> Trunk <---> F0/14 SW2 F0/17 <---> Trunk <---> F0/17 SW3
> > F0/19 <---> Trunk <---> F0/19 SW4
> >
> > SW1 and SW2 trunk on port F0/14
> > SW2 and SW3 trunk on port F0/17
> > SW3 and SW4 trunk on port F0/19
> >
> > R2 F0/0 is connected to SW2 port F0/2
> > R6 F0/1 is connected to SW4 port F0/6
> >
> >
> > I am not able to get R2 and R6 talk. I have even tried a direct trunk
> > between SW2 and SW4 but had no luck.
> > I see the ARP entry for R2 on R6 but nor vice versa.
> >
> > This is form IE R&S Workbok V5 Vol 2 Lab 10.
> > Please help me solve this. I may be doing somthing stupid or may be not.
> >
> > Thanks in advance!
> >
> > Best Regards,
> > CiscoLeague
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
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Blogs and organic groups at http://www.ccie.net
Received on Sun Jul 12 2009 - 14:43:07 ART
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