Configuration Guide
Interface Configuration
An access port handles tagged frames in the following ways:
When the VID (VLAN ID) of the tag is the same as the default VLAN ID, the access port
receives the frame and removes the tag before sending it out.
When the VID (VLAN ID) of the tag is 0, the access port receives the frame. In the tag,
VID=0 is used to prioritize the frame.
When the VID (VLAN ID) of the tag is different from the default VLAN ID and is not 0, this
frame is discarded.
Trunk Port
A trunk port can belong to multiple VLANs that receives and sends frames belonging to multiple
VLANs. Generally, it is used to connect devices or computers.
Default VLAN
Because a trunk port can belong to multiple VLANs, you need to set a native VLAN as the
default VLAN. By default, the trunk port transmits the frames of all VLANs. In order to reduce
device load and minimize waste of bandwidth, you can set a VLAN allowance list to specify the
frames of which VLANs the trunk port can transmit.
Caution
It is recommended to set the native VLAN of the trunk port on the
local device to be consistent with that of the trunk port on the
remote device. Otherwise, the trunk port cannot forward packets
properly.
Receiving and sending frames
The trunk port can receive untagged frames and the tagged frames of the VLANs permitted by
the port. All the frames of non-native VLANs sent by the trunk port are tagged, and the frames
of native VLAN are untagged.
Untagged frame
If a trunk port receives a frame without IEEE802.1Q TAG, this frame will be transmitted in the
native VLAN of the port.
Tagged frame
If a trunk port receives a tagged frame, it handles the frame in the following ways:
When the trunk port receives a tagged frame whose VID is the same as that of its native
VLAN, this frame is accepted. The tag will be removed before it sends the frame.
When the trunk port receives a tagged frame whose VID is different from that of its native
VLAN but is permitted by the port, the frame is accepted. The tag is kept unchanged when
it sends the frame.
When the trunk port receives a tagged frame whose VID is different from that of its native
VLAN and is not permitted by the port, the frame is discarded.
Содержание RG-S2900G-E Series
Страница 1: ...RG S2900G E Series Switch RGOS Configuration Guide Release 10 4 2b12 p1 ...
Страница 91: ...Configuration Guide Configuring PoE Configuration ...
Страница 133: ...Configuration Guide EEE Configuration ...
Страница 319: ...Configuration Guide QinQ Configuration ...
Страница 408: ......
Страница 409: ...IP Routing Configuration 1 Static Route Configuration ...
Страница 412: ......
Страница 413: ...Multicast Configuration 1 IGMP Snooping Configuration 2 MLD Snooping Configuration ...
Страница 621: ...Configuration Guide CPU Protection Configuration udp helper 180 4 dhcp client 180 4 lacp 180 4 ...
Страница 757: ......
Страница 758: ...ACL QoS Configuration 1 Access Control List Configuration 2 QoS Configuration ...
Страница 801: ...Reliability Configuration 1 RLDP Configuration 2 TPP Configuration 3 SEM Configuration ...
Страница 901: ...Configuration Guide ERSPAN Configuration ...
Страница 902: ...Web based Configuration 1 Web based Configuration ...