From: lee stpeter (lee.stpeter@gmail.com)
Date: Sun Aug 05 2007 - 14:59:54 ART
When configuring IEEE 802.1Q tunneling on an edge switch, you must use IEEE
802.1Q trunk ports for sending packets into the service-provider network.
However, packets going through the core of the service-provider network can
be carried through IEEE 802.1Q trunks, ISL trunks, or nontrunking links.
If service-provider uses dot1q trunk, say mtu = 1504 since dot1q tag is 4
bytes.
if service-provider uses ISL trunk, say mtu = 1500 + 26 since isl encap is
26 bytes, am i right?
if service-provide uses nontrunking, say mtu = 1500, right?
-- Best Regards LEE
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