<div>
Just curious: any particular reason you're using routers too when playing around with a STP scenario?
</div>


<div>
Excellent..<br />
R2 will be an island , RB for itself...
</div>


<div>
<div class="content wysiwyg-content">
on the Diagram below, SW1 is by default the Root Bridge<br />
<br />
I connected R2 to SW2 e2/2, and configured it so that it will act as a switch :<br />
On R2 I configured at the global level :<br />
bridge 1 protocol ieee<br />
and at the interface e0/0, I configured:<br />
interface Ethernet0/0<br />
&nbsp; bridge-group 1<br />
<br />
R2 became the RB<br />
and SW1 lost RB..<br />
<br />
Now If I configure SW2 e2/2 connecting to R2 either with BPDUFIlter (it will stop sending/receiving BPDUs) or BPDUGuard (it disables STP)<br />
R2 will stay as Root Bridge as well as SW1<br />
However I am not sure in this case if this creates a loop, since SW2 e2/2 does not send/receive BPDUs.<br />
<br />
any expert to explain how to confirm that there is or there is no loop created in this scenario ?<br />
<br />
Thanks<br />
<a href="https://filedb.experts-exchange.com/incoming/2016/01_w06/1078880/RS.JPG" target="_blank" title="sw (38 KB)"><img alt="sw" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2016/01_w06/800_1078880/RS.JPG" /></a>
</div>
</div>


RS.JPG

on the Diagram below, SW1 is by default the Root Bridge

I connected R2 to SW2 e2/2, and configured it so that it will act as a switch :
On R2 I configured at the global level :
bridge 1 protocol ieee
and at the interface e0/0, I configured:
interface Ethernet0/0
  bridge-group 1

R2 became the RB
and SW1 lost RB..

Now If I configure SW2 e2/2 connecting to R2 either with BPDUFIlter (it will stop sending/receiving BPDUs) or BPDUGuard (it disables STP)
R2 will stay as Root Bridge as well as SW1
However I am not sure in this case if this creates a loop, since SW2 e2/2 does not send/receive BPDUs.

any expert to explain how to confirm that there is or there is no loop created in this scenario ?

Thanks


Just curious: any particular reason you&#39;re using routers too when playing around with a STP scenario?

Excellent..
R2 will be an island , RB for itself...

BPDUFilter and BPDUGuard

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.

Switches / Hubs

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.