10. 802.1ad(Q-in-Q)のサポート
• 概要
• VLAN タグを入れ子にできる IEEE 802.1ad の機能が実装された
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• 変更されたバージョン
• Linux kernel 3.10
# ip link add link eth0 eth0.123
type vlan proto 802.1ad id 123
# ip link add link eth0.123 eth0.123.234
type vlan proto 802.1q id 234
# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
link/ether 52:54:00:bf:b6:10 brd ff:ff:ff:ff:ff:ff
3: eth0.123@eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DO
link/ether 52:54:00:bf:b6:10 brd ff:ff:ff:ff:ff:ff
4: eth0.123.234@eth0.123: <BROADCAST,MULTICAST,M-DOWN> mtu 1500 qdis
link/ether 52:54:00:bf:b6:10 brd ff:ff:ff:ff:ff:ff
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