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Message: <blockquote data-quote="bulza" data-source="post: 21746705" data-attributes="member: 279844"><img src="/styles/default/xenforo/smilies/default/baffled.gif"  class="smilie" loading="lazy" alt=":baffled:" title="Baffled    :baffled:" data-shortname=":baffled:" />මචන්ලා Network එකක් design කරනවා බන් මෙ දවස් වල Final year project එකට..Network එකේ පැකට් ලුප් වෙන්වා හෝ ගාලා..<img src="/styles/default/xenforo/smilies/default/sad.gif"  class="smilie" loading="lazy" alt=":(" title="Sad    :(" data-shortname=":(" /><img src="/styles/default/xenforo/smilies/default/sad.gif"  class="smilie" loading="lazy" alt=":(" title="Sad    :(" data-shortname=":(" />  දන්න සෙල්ලම් ඔක්කොම දෑම්මා ..එත් හරි යන් නෑ බන්.<img src="/styles/default/xenforo/smilies/default/sad.gif"  class="smilie" loading="lazy" alt=":(" title="Sad    :(" data-shortname=":(" /><img src="/styles/default/xenforo/smilies/default/sad.gif"  class="smilie" loading="lazy" alt=":(" title="Sad    :(" data-shortname=":(" /> STP අවුලක් තියෙන්නේ... <img src="/styles/default/xenforo/smilies/default/baffled.gif"  class="smilie" loading="lazy" alt=":baffled:" title="Baffled    :baffled:" data-shortname=":baffled:" /><img src="/styles/default/xenforo/smilies/default/baffled.gif"  class="smilie" loading="lazy" alt=":baffled:" title="Baffled    :baffled:" data-shortname=":baffled:" />අනේ දන්න එකෙක් ඉන්නවා නම් කියලා දියන්කෝ ගොඩක් පිං මචන්ලා.. <img src="/styles/default/xenforo/smilies/default/baffled.gif"  class="smilie" loading="lazy" alt=":baffled:" title="Baffled    :baffled:" data-shortname=":baffled:" /><img src="/styles/default/xenforo/smilies/default/baffled.gif"  class="smilie" loading="lazy" alt=":baffled:" title="Baffled    :baffled:" data-shortname=":baffled:" />Cisco ලාගේ Thread එකක පොස්ට් එකකුත් දැම්මා..<img src="/styles/default/xenforo/smilies/default/sad.gif"  class="smilie" loading="lazy" alt=":(" title="Sad    :(" data-shortname=":(" /><img src="/styles/default/xenforo/smilies/default/sad.gif"  class="smilie" loading="lazy" alt=":(" title="Sad    :(" data-shortname=":(" /> තාම හරි solution එකක් නැ මචන්ලා.. Cisco post එකේ දාපු එකම දාන්නම් <img src="/styles/default/xenforo/smilies/default/P.gif"  class="smilie" loading="lazy" alt=":P" title=":P    :P" data-shortname=":P" /><img src="/styles/default/xenforo/smilies/default/P.gif"  class="smilie" loading="lazy" alt=":P" title=":P    :P" data-shortname=":P" /> There are 6 different VLANs (Distribution Layer switches ) of my network design. As same as, A PAgP port channel has been created between both distribution layer (Cisco Multi-Layer 3560-24 PS)  switches Here below my network topology. <img src="https://s4.postimg.org/coll0a5d9/Capture.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /> When data packets are forwarding with different VLAS in here, the data packets will be loop whole over the network.And also the port links of the switch are blinking in dark green colour and  data packets will drop. So i think that its a spanning tree protocol problem. Therefore, i think that you all will help to solve it. When  the switches of distribution layer are executed show spanning tree command, both switches show as a root. i think that its the problem. Further, for overcome this issue i have given spanning tree VLAN priority for each VLANS. But it was not successfully. And also, RPVST+ was also configured by me. But it was also not successfully. So i think that it i have done it wrongly. And also, when the PAgP port channel of distribution layer switches convert into Layer 3 (Executing no switch port command) the packets will not loop because BPDU packets are not forward. But if it is done, i think that its not useful. I have already attached packet tracer network design. please help me to solve this problem. Thank you! මගේ packet tracer file ඩවුන්ලොඩ් ලින්ක් එක..<a href="https://drive.google.com/file/d/0BwSalc7l8-_8dUtqdDJ0eHlsUVk/view?usp=sharing" target="_blank">https://drive.google.com/file/d/0BwSalc7l8-_8dUtqdDJ0eHlsUVk/view?usp=sharing</a>බම්ප් හරි දාපල්ලා බන්... මේක නිසා එරිලා ඉන්නෙ අමබානක </blockquote>

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