92
802.1Q VLAN
Virtual Local Area Network (VLAN) can be implemented on the switch to logically create
different broadcast domain.
When the 802.1Q VLAN function is enabled, all ports on the switch belong to default
VLAN of VID 1, which means they logically are regarded as members of the same
broadcast domain. The valid VLAN ID is in the range of number between 1 and 4094.
The amount of VLAN groups is up to 256 including default VLAN that cannot be deleted.
Each member port of 802.1Q is on either an Access Link (VLAN-tagged) or a Trunk Link
(no VLAN-tagged). All frames on an Access Link carry no VLAN identification.
Conversely, all frames on a Trunk Link are VLAN-tagged. Besides, there is the third
mode
—Hybrid. A Hybrid Link can carry both VLAN-tagged frames and untagged frames.
A single port is supposed to belong to one VLAN group, except it is on a Trunk/Hybrid
Link.
The technique of 802.1Q tagging inserts a 4-byte tag, including VLAN ID of the
destination port
—PVID, in the frame. With the combination of Access/Trunk/Hybrid Links,
the communication across switches also can make the packet sent through tagged and
untagged ports.
Summary of Contents for LPES-2208CA
Page 2: ...Revision History Document Release Date Revision Initials 1 00 Aug 28 2009 New Edit Vincent ...
Page 57: ...50 IP Configuration interface ...
Page 66: ...59 Syslog Configuration interface ...
Page 68: ...61 SMTP Configuration interface ...
Page 70: ...63 Event Configuration interface ...
Page 74: ...67 Click Apply to have the configuration take effect SNTP Configuration interface ...
Page 76: ...69 IP Security interface ...
Page 79: ...72 Port Statistics interface ...
Page 81: ...74 Port Control interface ...
Page 91: ...84 State Activity of Switch 2 ...
Page 105: ...98 RSTP System Configuration interface ...
Page 107: ...100 RSTP Port Configuration interface ...
Page 109: ...102 SNMP System Configuration interface ...
Page 112: ...105 SNMP v3 configuration interface ...
Page 115: ...108 QoS Configuration interface Port Based Priority Configure per port priority level ...
Page 118: ...111 IGMP Configuration interface ...