Chapter 42 IEEE 802.1Q Tagged VLAN Commands
GS-2724 User’s Guide
293
where
• Enter
fixed
to register the
<port-list>
to the static VLAN table with
<vlan-id>
.
• Enter
normal
to confirm registration of the
<port-list>
to the static VLAN table with
<vlan-id>
.
• Enter
forbidden
to block a
<port-list>
from joining the static VLAN table with
<vlan-id>
.
• Enter
no fixed
or
no forbidden
to change
<port-list>
to normal status.
• Enter
untagged
to send outgoing frames without a tag.
• Enter
no untagged
to tag outgoing frames.
42.3.4.1 Modify a Static VLAN Table Example
The following example configures ports 1 to 5 as fixed and untagged ports in VLAN 2000.
42.3.4.2 Forwarding Process Example
42.3.4.2.1 Tagged Frames
1
First the Switch checks the VLAN ID (VID) of tagged frames or assigns temporary
VIDs to untagged frames.
2
The Switch then checks the VID in a frame’s tag against the SVLAN table.
3
The Switch notes what the SVLAN table says (that is, the SVLAN tells the Switch
whether or not to forward a frame and if the forwarded frames should have tags).
4
Then the Switch applies the port filter to finish the forwarding decision. This means that
frames may be dropped even if the SVLAN says to forward them. Frames might also be
dropped if they are sent to a CPE (customer premises equipment) DSL device that does
not accept tagged frames.
42.3.4.2.2 Untagged Frames
1
An untagged frame comes in from the LAN.
2
The Switch checks the PVID table and assigns a temporary VID of 1.
3
The Switch ignores the port from which the frame came, because the Switch does not
send a frame to the port from which it came. The Switch also does not forward frames to
“forbidden” ports.
4
If after looking at the SVLAN, the Switch does not have any ports to which it will send
the frame, it won’t check the port filter.
<vlan-id>
=
The VLAN ID [1 – 4094].
<name-str>
=
A name to identify the SVLAN entry.
<port-list>
=
This is the Switch port list.
sysname (config)# vlan 2000
sysname (config-vlan)# fixed 1-5
sysname (config-vlan)# untagged 1-5
Содержание GS-2724
Страница 1: ...www zyxel com GS 2724 Ethernet Switch User s Guide Version 3 70 4 2007 Edition 1 ...
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Страница 7: ...Safety Warnings GS 2724 User s Guide 7 ...
Страница 8: ...Safety Warnings GS 2724 User s Guide 8 ...
Страница 22: ...Table of Contents GS 2724 User s Guide 22 ...
Страница 30: ...List of Tables GS 2724 User s Guide 30 ...
Страница 32: ...32 ...
Страница 36: ...Chapter 1 Getting to Know Your Switch GS 2724 User s Guide 36 ...
Страница 40: ...Chapter 2 Hardware Installation and Connection GS 2724 User s Guide 40 ...
Страница 46: ...Chapter 3 Hardware Overview GS 2724 User s Guide 46 ...
Страница 48: ...48 ...
Страница 58: ...Chapter 4 The Web Configurator GS 2724 User s Guide 58 ...
Страница 64: ...Chapter 5 Initial Setup Example GS 2724 User s Guide 64 ...
Страница 70: ...Chapter 6 System Status and Port Statistics GS 2724 User s Guide 70 ...
Страница 84: ...84 ...
Страница 94: ...Chapter 8 VLAN GS 2724 User s Guide 94 Figure 36 Port Based VLAN Setup All connected ...
Страница 126: ...Chapter 16 Port Authentication GS 2724 User s Guide 126 ...
Страница 130: ...Chapter 17 Port Security GS 2724 User s Guide 130 ...
Страница 136: ...Chapter 18 Classifier GS 2724 User s Guide 136 Figure 58 Classifier Example ...
Страница 139: ...Chapter 19 Policy Rule GS 2724 User s Guide 139 Figure 59 Policy ...
Страница 145: ...Chapter 20 Queuing Method GS 2724 User s Guide 145 ...
Страница 146: ...Chapter 20 Queuing Method GS 2724 User s Guide 146 ...
Страница 152: ...Chapter 21 VLAN Stacking GS 2724 User s Guide 152 ...
Страница 165: ...165 PART IV IP Application Static Route 167 RIP 169 IGMP 171 Differentiated Services 173 DHCP 177 ...
Страница 166: ...166 ...
Страница 183: ...Chapter 27 DHCP GS 2724 User s Guide 183 Figure 89 DHCP Relay Configuration Example ...
Страница 184: ...Chapter 27 DHCP GS 2724 User s Guide 184 ...
Страница 186: ...186 ...
Страница 210: ...Chapter 31 Syslog GS 2724 User s Guide 210 ...
Страница 224: ...Chapter 36 Routing Table GS 2724 User s Guide 224 ...
Страница 228: ...228 ...
Страница 262: ...Chapter 38 Introducing Commands GS 2724 User s Guide 262 ...
Страница 296: ...Chapter 42 IEEE 802 1Q Tagged VLAN Commands GS 2724 User s Guide 296 ...
Страница 300: ...Chapter 44 Routing Domain Command Examples GS 2724 User s Guide 300 ...
Страница 304: ...304 ...
Страница 312: ...Appendix B Changing a Fuse GS 2724 User s Guide 312 ...
Страница 332: ...Appendix E Common Services GS 2724 User s Guide 332 ...
Страница 336: ...Appendix F Legal Information GS 2724 User s Guide 336 ...
Страница 348: ...Index GS 2724 User s Guide 348 ...