Difference between revisions of "VLAN Tagging (IEEE 802.1Q)"
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'''VLAN Tagging''' is the practice of inserting a '''VLAN ID''' into a packet header in order to identify which '''VLAN''' (Virtual Local Area Network) the packet belongs to. More specifically, switches use the '''VLAN ID''' to determine which port(s), or interface(s), to send a broadcast packet to. | '''VLAN Tagging''' is the practice of inserting a '''VLAN ID''' into a packet header in order to identify which '''VLAN''' (Virtual Local Area Network) the packet belongs to. More specifically, switches use the '''VLAN ID''' to determine which port(s), or interface(s), to send a broadcast packet to. | ||
| − | VLAN tagging is supported by stations in the ''[[:Category:Stations#INCA_stations|INCA family]]. | + | VLAN tagging is supported by stations in the ''[[:Category:Stations#INCA_stations|INCA family]].'' |
| − | <u>'''User interface:'''</u><br/> | + | <u>'''User interface:'''</u><br /> |
VLAN is configured in the IP station web interface. | VLAN is configured in the IP station web interface. | ||
| − | * [[Logging into an IP Station|Log into the IP Station]] | + | |
| − | * Select '''Advanced Network''' > '''VLAN''' from the menu. | + | *[[Logging into an IP Station|Log into the IP Station]] |
| + | *Select '''Advanced Network''' > '''VLAN''' from the menu. | ||
| + | |||
[[File:IP-StationWeb VLAN.PNG|thumb|left|700px]] | [[File:IP-StationWeb VLAN.PNG|thumb|left|700px]] | ||
<br style="clear:both;" /> | <br style="clear:both;" /> | ||
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| − | <u>'''Enable VLAN:'''</u><br/> | + | <u>'''Enable VLAN:'''</u><br /> |
This option determines whether the switch uses 802.1Q or not. If this is enabled, the switch is VLAN aware. Select '''YES''' or '''NO''' from the dropdown menu. | This option determines whether the switch uses 802.1Q or not. If this is enabled, the switch is VLAN aware. Select '''YES''' or '''NO''' from the dropdown menu. | ||
| − | <u>'''Port specific VLAN rules and tagging options:'''</u><br/> | + | <u>'''Port specific VLAN rules and tagging options:'''</u><br /> |
Here, it is possible to specify which VLAN ID and priority the ports should assign untagged packets to. Tagged packets are not changed. | Here, it is possible to specify which VLAN ID and priority the ports should assign untagged packets to. Tagged packets are not changed. | ||
| − | *'''VLAN ID''' has a value range from 0 to 4094. It specifies which VLAN ID tag to add to a packet. | + | |
| − | *'''VLAN priority''' has a value range from 0 to 7. It specifies which VLAN priority tag to add to a packet. | + | *'''VLAN ID''' has a value range from 0 to 4094. It specifies which VLAN ID tag to add to a packet. |
| − | *'''Sending filter''' specifies whether a given port will only send to VLANs which it is a member of or all VLANs. For example, if the chosen option is '''MEMBERS''' then a packet with VLAN ID 1 at the LAN port | + | *'''VLAN priority''' has a value range from 0 to 7. It specifies which VLAN priority tag to add to a packet. |
| + | *'''Sending filter''' specifies whether a given port will only send to VLANs which it is a member of or all VLANs. For example, if the chosen option is '''MEMBERS''' then a packet with VLAN ID 1 at the LAN port | ||
| + | |||
will only reach another port which is a member of VLAN ID 1. Select '''MEMBERS''' or '''ALL''' from the dropdown menu. | will only reach another port which is a member of VLAN ID 1. Select '''MEMBERS''' or '''ALL''' from the dropdown menu. | ||
| − | |||
| − | |||
| − | |||
| + | *'''Acceptance filter''' specifies whether a port will accept only tagged packets or all packets. The option '''ONLY TAGGED''' should only be used against VLAN aware devices which tag packets. Select '''ONLY ''' | ||
| + | |||
| + | TAGGED''' or '''ALL''' from the dropdown menu.''' | ||
| + | |||
| + | *'''If the '''IP-station upgrade with VLAN''' scrolldown box is set to '''YES''' the IP station will send tagged packets during the upgrade.''' | ||
| − | <u>'''VLAN priority tag to switch priority:'''</u><br/> | + | |
| + | <u>'''VLAN priority tag to switch priority:'''</u><br /> | ||
Here, it is possible to specify how the switch should queue the packets with '''VLAN priority tag'''. | Here, it is possible to specify how the switch should queue the packets with '''VLAN priority tag'''. | ||
| + | |||
*'''Switch priority''': Select '''HIGH''' or '''LOW''' from the dropdown menu. By default, packets with VLAN priority tags from 4 to 7 are set to the '''HIGH''' priority queue. | *'''Switch priority''': Select '''HIGH''' or '''LOW''' from the dropdown menu. By default, packets with VLAN priority tags from 4 to 7 are set to the '''HIGH''' priority queue. | ||
| Line 35: | Line 43: | ||
| − | <u>'''Add ports to a VLAN:'''</u><br/> | + | <u>'''Add ports to a VLAN:'''</u><br /> |
Here, it is possible to determine whether the ports should be members of the specified VLAN. There is also a setting for specifying whether the ports should strip or keep the VLAN tag when sending egress packets. | Here, it is possible to determine whether the ports should be members of the specified VLAN. There is also a setting for specifying whether the ports should strip or keep the VLAN tag when sending egress packets. | ||
| + | |||
*'''Membership''' determines whether the port is a member of the specified VLAN or not. Select '''Not member''' or '''Member''' from the dropdown menu. | *'''Membership''' determines whether the port is a member of the specified VLAN or not. Select '''Not member''' or '''Member''' from the dropdown menu. | ||
*'''Egress tagging''' determines whether the port should remove VLAN tags or keep them for the specified VLAN. Select '''Remove tag''' or '''Keep tag''' from the dropdown menu. | *'''Egress tagging''' determines whether the port should remove VLAN tags or keep them for the specified VLAN. Select '''Remove tag''' or '''Keep tag''' from the dropdown menu. | ||
| Line 43: | Line 52: | ||
| − | <u>'''Remove VLAN by ID:'''</u><br/> | + | <u>'''Remove VLAN by ID:'''</u><br /> |
Here, it is possible to determine which VLAN is to be removed from the '''VLAN table''' by specifying the '''VLAN ID''', then clicking the '''Remove VLAN''' button. | Here, it is possible to determine which VLAN is to be removed from the '''VLAN table''' by specifying the '''VLAN ID''', then clicking the '''Remove VLAN''' button. | ||
| − | <u>'''VLAN table:'''</u><br/> | + | <u>'''VLAN table:'''</u><br /> |
| − | The VLANs that the ports are members of are listed under the '''Membership Info''' column. The table also lists the ports that keep the VLAN tag when sending egress packets; this is shown under the '''Egress | + | The VLANs that the ports are members of are listed under the '''Membership Info''' column. The table also lists the ports that keep the VLAN tag when sending egress packets; this is shown under the '''Egress ''' |
| − | Tagging Info''' column. The '''VLAN table''' can accommodate a maximum of 63 VLANs. | + | Tagging Info''' column. The '''VLAN table''' can accommodate a maximum of 63 VLANs.''' |
''The DHCP address is received before the switch is VLAN aware (during startup).'' | ''The DHCP address is received before the switch is VLAN aware (during startup).'' | ||
''Either trunk all VLANs or set the DHCP server which should reach the IP substation'' | ''Either trunk all VLANs or set the DHCP server which should reach the IP substation'' | ||
| Line 56: | Line 65: | ||
==Related Articles== | ==Related Articles== | ||
| + | [[IP Station VLAN Configuration Guide]] | ||
| + | |||
[[IP Station on VLAN with Cisco Catalyst PoE swtich]] | [[IP Station on VLAN with Cisco Catalyst PoE swtich]] | ||
Revision as of 03:55, 25 September 2020
VLAN Tagging is the practice of inserting a VLAN ID into a packet header in order to identify which VLAN (Virtual Local Area Network) the packet belongs to. More specifically, switches use the VLAN ID to determine which port(s), or interface(s), to send a broadcast packet to.
VLAN tagging is supported by stations in the INCA family.
User interface:
VLAN is configured in the IP station web interface.
- Log into the IP Station
- Select Advanced Network > VLAN from the menu.
Clicking the Apply settings button will apply the chosen settings. With the exception of a restart, the saved settings will not come into effect until Apply settings is clicked.
Enable VLAN:
This option determines whether the switch uses 802.1Q or not. If this is enabled, the switch is VLAN aware. Select YES or NO from the dropdown menu.
Port specific VLAN rules and tagging options:
Here, it is possible to specify which VLAN ID and priority the ports should assign untagged packets to. Tagged packets are not changed.
- VLAN ID has a value range from 0 to 4094. It specifies which VLAN ID tag to add to a packet.
- VLAN priority has a value range from 0 to 7. It specifies which VLAN priority tag to add to a packet.
- Sending filter specifies whether a given port will only send to VLANs which it is a member of or all VLANs. For example, if the chosen option is MEMBERS then a packet with VLAN ID 1 at the LAN port
will only reach another port which is a member of VLAN ID 1. Select MEMBERS or ALL from the dropdown menu.
- Acceptance filter specifies whether a port will accept only tagged packets or all packets. The option ONLY TAGGED should only be used against VLAN aware devices which tag packets. Select ONLY
TAGGED or ALL from the dropdown menu.
- If the IP-station upgrade with VLAN scrolldown box is set to YES the IP station will send tagged packets during the upgrade.
VLAN priority tag to switch priority:
Here, it is possible to specify how the switch should queue the packets with VLAN priority tag.
- Switch priority: Select HIGH or LOW from the dropdown menu. By default, packets with VLAN priority tags from 4 to 7 are set to the HIGH priority queue.
See also IP Station on VLAN with Cisco Catalyst PoE swtich
Add ports to a VLAN:
Here, it is possible to determine whether the ports should be members of the specified VLAN. There is also a setting for specifying whether the ports should strip or keep the VLAN tag when sending egress packets.
- Membership determines whether the port is a member of the specified VLAN or not. Select Not member or Member from the dropdown menu.
- Egress tagging determines whether the port should remove VLAN tags or keep them for the specified VLAN. Select Remove tag or Keep tag from the dropdown menu.
Clicking the Add VLAN button will add the current chosen settings to the VLAN table below. If a VLAN in the VLAN table already exists with the chosen VLAN ID, then the settings will be updated.
Remove VLAN by ID:
Here, it is possible to determine which VLAN is to be removed from the VLAN table by specifying the VLAN ID, then clicking the Remove VLAN button.
VLAN table:
The VLANs that the ports are members of are listed under the Membership Info column. The table also lists the ports that keep the VLAN tag when sending egress packets; this is shown under the Egress
Tagging Info column. The VLAN table can accommodate a maximum of 63 VLANs.
The DHCP address is received before the switch is VLAN aware (during startup). Either trunk all VLANs or set the DHCP server which should reach the IP substation on a native VLAN.