[Bridge] bridge - canopy - cisco catalyst 2950

[Bridge] bridge - canopy - cisco catalyst 2950

[Alonso Enero V.]

[-- Attachment #1.1: Type: text/plain, Size: 1216 bytes --]

Hi Friends!

 

 

         Sorry for disturb you.

 

         I want to ask you something about a bridge implementation that I
need to make work.

 

         This implementation uses Motorola Canopy (a wireless
implementation) to link two sites of my work company backing up an optic
fiber link (the main link) like appears in the following picture:

 

 

         

 

 

         

         Everything works ok in a laboratory environment, without the Cisco
Catalyst switch, but when link the #1 bridge to the Cisco Catalyst
respective port (the one with the needed VLAN), starts a horrible loop in
our LAN. I think something happens inside the Cisco switch that difficult
the STP traffic between the #1 bridge and out site 3. I heard of something
called bdpufilter, which is not set in out Catalyst switch, said our ISP. I
read a page were you give some suggestions of tweak the Linux Kernel that I
did (http://lists.osdl.org/pipermail/bridge/2005-October/001116.html), but
still didn't tested, until have a clear idea of what happens inside the
Cisco switch.

 

 

         Thanks in advice!

 

 

         

 

Alonso Enero V.

 <mailto:alonso.enero@gmail.com> alonso.enero@gmail.com

Santiago, Chile

 


[-- Attachment #1.2: Type: text/html, Size: 7668 bytes --]

[-- Attachment #2: image002.jpg --]
[-- Type: image/jpeg, Size: 85265 bytes --]

Re: [Bridge] bridge - canopy - cisco catalyst 2950

[Stephen Hemminger]

On Fri, 10 Nov 2006 18:54:49 -0300
"Alonso Enero V." <alonso.enero@gmail.com> wrote:

> Hi Friends!
> 
>  

>          
> 
>          Everything works ok in a laboratory environment, without the Cisco
> Catalyst switch, but when link the #1 bridge to the Cisco Catalyst
> respective port (the one with the needed VLAN), starts a horrible loop in
> our LAN. I think something happens inside the Cisco switch that difficult
> the STP traffic between the #1 bridge and out site 3. I heard of something
> called bdpufilter, which is not set in out Catalyst switch, said our ISP. I
> read a page were you give some suggestions of tweak the Linux Kernel that I
> did (http://lists.osdl.org/pipermail/bridge/2005-October/001116.html), but
> still didn't tested, until have a clear idea of what happens inside the
> Cisco switch.
> 
>  
Did you enable STP, it is off by default?


The version of Spanning Tree Protocol in Linux doesn't know about VLAN's,
so that might be related.


-- 
Stephen Hemminger <shemminger@osdl.org>

Re: [Bridge] bridge - canopy - cisco catalyst 2950

[Melissa Meyer]

Did you get an answer to this?

I had a similar experience. To fix, I had to turn off spanning tree on 
the cisco switch connected to the bridges as well as turn on dot1q 
trunking on the ports on the switch the bridges used.

So the cisco config for my bridge ports:

switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate

For the other ports on the switch, the switchport mode was set to access.

Hope this helps.



Alonso Enero V. wrote:
>
> Hi Friends!
>
> Sorry for disturb you…
>
> I want to ask you something about a bridge implementation that I need 
> to make work.
>
> This implementation uses *Motorola* *Canopy* (a wireless 
> implementation) to link two sites of my work company backing up an 
> optic fiber link (the main link) like appears in the following picture:
>
> Everything works ok in a laboratory environment, without the Cisco 
> Catalyst switch, but when link the #1 bridge to the Cisco Catalyst 
> respective port (the one with the needed VLAN), starts a horrible loop 
> in our LAN. I think something happens inside the Cisco switch that 
> difficult the STP traffic between the #1 bridge and out site 3. I 
> heard of something called *bdpufilter*, which is not set in out 
> Catalyst switch, said our ISP. I read a page were you give some 
> suggestions of tweak the Linux Kernel that I did 
> (http://lists.osdl.org/pipermail/bridge/2005-October/001116.html), but 
> still didn’t tested, until have a clear idea of what happens inside 
> the Cisco switch.
>
> Thanks in advice!
>
> Alonso Enero V.
>
> alonso.enero@gmail.com <mailto:alonso.enero@gmail.com>
>
> Santiago, Chile
>
>
> ------------------------------------------------------------------------
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Bridge mailing list
> Bridge@lists.osdl.org
> https://lists.osdl.org/mailman/listinfo/bridge
>