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Forum Replies

  1. Hi Srini,

    I used routers just to have some “customer” device that could do tagging for me in this example. In a real network, you would use customer switches instead.

    The tag on the left side is the tag from the ISP, I should probably have used the same color for the customer tag.


  2. Hello Abhishek

    In order to clearly answer your question, you’ll have to understand the following terminology:

    MTU - Maximum transmission unit - this is the largest physical packet size measured in bytes that a network can transmit. Any packet larger than this MTU is divided or fragmented into smaller packets before transmission. The standard MTU on an Ethernet network is 1500 bytes plus the size of the L2 header and frame check sequence which is an additional 18 bytes. So standard MTU size for Ethernet is 1518.

    Jumbo frame - A frame that is larger than the s

    ... Continue reading in our forum

  3. Hi Laz,
    You are very welcome. Thank you too!

  4. You are right Adrian, thanks for notifying us. I just fixed it.

  5. What happen if we have two customers, customer X and Y and use the same SVLAN (outer vlan) 123 and we segregate traffic using different cvlans (cvlan 12 for customer x and cvlan 13 for customer y). So, we have customer x site 1 and site 2, both sites using lan switches connected to the metro ethernet service provider lan switch and the same for customer y.
    If customer X Lan Switch sends a BPDU towards the ISP, this BPDU will be carried on the inner vlan ? or should I have to configure the “l2protocol stp” on the interface configuration mode on the ISP edge inte

    ... Continue reading in our forum

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