H3C Technologies H3C SecBlade NetStream Cards - Manual (Page 105)

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NOTE:
•
H3C recommends that you set the same default VLAN ID for local and remote ports.
• Make sure that a port is assigned to its default VLAN. Otherwise, when the port receives frames tagged
with the default VLAN ID or untagged frames (including protocol packets such as MSTP BPDUs), the port
filters out these frames.
The following table shows how ports of different link types handle frames:
Port type
Actions (in the inbound direction)
Actions (in the outbound
direction)
Untagged frame Tagged frame
Access
Tag the frame with the
default VLAN tag.
• Receive the frame if its
VLAN ID is the same as the
default VLAN ID.
• Drop the frame if its VLAN
ID is different from the
default VLAN ID.
Remove the VLAN tag and send
the frame.
Trunk
Check whether the
default VLAN is permitted
on the port:
• If yes, tag the frame
with the default VLAN
tag.
• If not, drop the frame.
• Receive the frame if its
VLAN is carried on the
port.
• Drop the frame if its VLAN
is not carried on the port.
• Remove the tag and send the
frame if the frame carries the
default VLAN tag and the
port belongs to the default
VLAN.
• Send the frame without
removing the tag if its VLAN
is carried on the port but is
different from the default
one.
Hybrid
Send the frame if its VLAN is
carried on the port. The frame is
sent with the VLAN tag removed
or intact depending on your
configuration with the port
hybrid vlan command. This is
true of the default VLAN.
Assigning an access port to a VLAN
You can assign an access port to a VLAN in VLAN view or interface view.
Follow these steps to assign one or multiple access ports to a VLAN in VLAN view:
To do… Use the command… Remarks
Enter system view system-view —
Enter VLAN view vlan vlan-id
Required
If the specified VLAN does not exist, this
command creates the VLAN first.
Assign one or a group of access
ports to the current VLAN
port interface-list
Required
By default, all ports belong to VLAN 1.
Follow these steps to assign an access port (in interface view):