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Understanding the Switch Behavior
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05-18-2012 05:58 AM - edited 03-07-2019 06:46 AM
Hi Experts,
I understand the concept of Tagging but just trying to under how does the switch behaves on some adverse scenario's.
I have put forth this table along with my undrestanding. Just wanted to confirm if my understanding is okay.
Lets assume a case that the switch is connected to a packet generator which places some frames on the link towards switch:
Switch Port Operational Status: Access Vlan : 10 | My understading: |
case 1: The switch gets a traffic on that port with a tag : 10 | Since the Switch is configured as an Access port , it would expect a untagged traffic on this port. Since the port receives a tagged traffic, it would drop the packet |
Case 2: The switch gets a traffic on this port with a tag : 2 | Since the Switch is configured as an Access port , it would expect a untagged traffic on this port. Since the port receives a tagged traffic, it would drop the packet |
Case 3: The switch gets a traffic on this port with no tag | The Switch process the traffic and attaches the tag Vlan10 when sent over trunk link |
Switch Port Operational Status: Trunk | |
case 1: The switch gets a traffic on that port with a tag | The switch removes the tag upon receiving the tagged traffic and processes the traffic (re-tags if it has to be sent over another trunk link or sends as it is if had to be sent to an access port) |
Case 2: The switch gets a traffic on this port with no tag | The switch takes this traffic as part of Native Vlan and process them. |
Please let me know if I'm okay wiht my understading.
Thanks.
-Vijay
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05-18-2012 06:52 AM
You are right
Siddhartha
