blob: 74bc2080b4f0e127ee8952f87e66db905d06466d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
.. include:: /_include/need_improvement.txt
IEEE 802.1ad_ was an Ethernet networking standard informally known as QinQ as
an amendment to IEEE standard 802.1q VLAN interfaces as described above.
802.1ad was incorporated into the base 802.1q_ standard in 2011. The technique
is also known as provider bridging, Stacked VLANs, or simply QinQ or Q-in-Q.
"Q-in-Q" can for supported devices apply to C-tag stacking on C-tag (Ethernet
Type = 0x8100).
The original 802.1q_ specification allows a single Virtual Local Area Network
(VLAN) header to be inserted into an Ethernet frame. QinQ allows multiple
VLAN tags to be inserted into a single frame, an essential capability for
implementing Metro Ethernet network topologies. Just as QinQ extends 802.1Q,
QinQ itself is extended by other Metro Ethernet protocols.
In a multiple VLAN header context, out of convenience the term "VLAN tag" or
just "tag" for short is often used in place of "802.1q_ VLAN header". QinQ
allows multiple VLAN tags in an Ethernet frame; together these tags constitute
a tag stack. When used in the context of an Ethernet frame, a QinQ frame is a
frame that has 2 VLAN 802.1q_ headers (double-tagged).
In VyOS the terms ``vif-s`` and ``vif-c`` stand for the ethertype tags that
are used.
The inner tag is the tag which is closest to the payload portion of the frame.
It is officially called C-TAG (customer tag, with ethertype 0x8100). The outer
tag is the one closer/closest to the Ethernet header, its name is S-TAG
(service tag with Ethernet Type = 0x88a8).
.. cmdinclude:: /_include/interface-address-with-dhcp.txt
:var0: {{ var0 }}
:var1: {{ var1 }}
:var2: vif-s
:var3: <vlan-id>
:var4: 1000
:var5: vif-c
:var6: <vlan-id>
:var7: 20
.. cmdinclude:: /_include/interface-description.txt
:var0: {{ var0 }}
:var1: {{ var1 }}
:var2: vif-s
:var3: <vlan-id>
:var4: 1000
:var5: vif-c
:var6: <vlan-id>
:var7: 20
.. cmdinclude:: /_include/interface-disable.txt
:var0: {{ var0 }}
:var1: {{ var1 }}
:var2: vif-s
:var3: <vlan-id>
:var4: 1000
:var5: vif-c
:var6: <vlan-id>
:var7: 20
.. cmdinclude:: /_include/interface-disable-link-detect.txt
:var0: {{ var0 }}
:var1: {{ var1 }}
:var2: vif-s
:var3: <vlan-id>
:var4: 1000
:var5: vif-c
:var6: <vlan-id>
:var7: 20
.. cmdinclude:: /_include/interface-mac.txt
:var0: {{ var0 }}
:var1: {{ var1 }}
:var2: vif-s
:var3: <vlan-id>
:var4: 1000
:var5: vif-c
:var6: <vlan-id>
:var7: 20
.. cmdinclude:: /_include/interface-mtu.txt
:var0: {{ var0 }}
:var1: {{ var1 }}
:var2: vif-s
:var3: <vlan-id>
:var4: 1000
:var5: vif-c
:var6: <vlan-id>
:var7: 20
.. cmdinclude:: /_include/interface-ipv6-addr-autoconf.txt
:var0: {{ var0 }}
:var1: {{ var1 }}
:var2: vif-s
:var3: <vlan-id>
:var4: 1000
:var5: vif-c
:var6: <vlan-id>
:var7: 20
.. cmdinclude:: /_include/interface-ipv6-addr-eui64.txt
:var0: {{ var0 }}
:var1: {{ var1 }}
:var2: vif-s
:var3: <vlan-id>
:var4: 1000
:var5: vif-c
:var6: <vlan-id>
:var7: 20
.. cmdinclude:: /_include/interface-vrf.txt
:var0: {{ var0 }}
:var1: {{ var1 }}
:var2: vif-s
:var3: <vlan-id>
:var4: 1000
:var5: vif-c
:var6: <vlan-id>
:var7: 20
**DHCP(v6)**
.. cmdinclude:: /_include/interface-dhcp-options.txt
:var0: {{ var0 }}
:var1: {{ var1 }}
:var2: vif-s
:var3: <vlan-id>
:var4: 1000
:var5: vif-c
:var6: <vlan-id>
:var7: 20
.. cmdinclude:: /_include/interface-dhcpv6-options.txt
:var0: {{ var0 }}
:var1: {{ var1 }}
:var2: vif-s
:var3: <vlan-id>
:var4: 1000
:var5: vif-c
:var6: <vlan-id>
:var7: 20
.. include:: /_include/common-references.txt
|
