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Create: 2025-02-25 Update: 2025-07-03 16:35:12

ИСПОЛЬЗОВАНИЕ ДВУХ VLAN-ТЕГОВ 802.1Q

В предыдущем посте про VLAN я упомянул, что не знаю ситуаций, в которых могло бы использоваться более двух VLAN-тегов 802.1Q. Но не всем понятно, зачем может понадобиться использование двух таких одинаковых тегов, когда в "нормальной жизни" двойное тегирование подразумевает два разных тега: 802.1Q и 802.1ad.

Необходимость использования двух тегов была и до появления стандарта IEEE 802.1ad. Вот именно тогда на том самом старом оборудовании и использовалось тегирование с помощью двух тегов 802.1Q. Но сейчас такое оборудование уже не встречается. Однако поддержка такой возможности до сих пор есть у некоторых вендоров.

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ИП Скоромнов Дмитрий Анатольевич, ИНН 331403723315

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ИСПОЛЬЗОВАНИЕ ДВУХ VLAN-ТЕГОВ 802.1Q

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