Assigning An Ethernet Port To Specified Vlans; Configuring The Default Vlan Id For A Port - H3C S5100-SI Series Operation Manual

Operation Manual – VLAN
H3C S5100-SI/EI Series Ethernet Switches
Note:
A hybrid port allows the packets of multiple VLANs to be sent untagged, but a trunk port
only allows the packets of the default VLAN to be sent untagged.
The three types of ports can coexist on the same device.

1.2.2 Assigning an Ethernet Port to Specified VLANs

You can assign an Ethernet port to a VLAN to forward packets for the VLAN, thus
allowing the VLAN on the current switch to communicate with the same VLAN on the
peer switch.
An access port can be assigned to only one VLAN, while a hybrid or trunk port can be
assigned to multiple VLANs.
Note:
Before assigning an access or hybrid port to a VLAN, create the VLAN first.

1.2.3 Configuring the Default VLAN ID for a Port

An access port can belong to only one VLAN. Therefore, the VLAN an access port
belongs to is also the default VLAN of the access port. A hybrid/trunk port can belong to
multiple VLANs, so you should configure a default VLAN ID for the port.
After a port is added to a VLAN and configured with a default VLAN, the port receives
and sends packets in a way related to its link type. For detailed description, refer to the
following tables:
Table 1-1 Packet processing of an access port
For an untagged
Receive the packet and
tag the packet with the
default VLAN tag.
Processing of an incoming packet
packet
For a tagged packet
If the VLAN ID is just the default
VLAN ID, receive the packet.
If the VLAN ID is not the default
VLAN ID, discard the packet.
1-6
Chapter 1 VLAN Overview
Processing of an
outgoing packet
Strip the tag from
the packet and
send the packet.