The following table gives an overview of the different modes and a list of the
corresponding supported functionality:
VLAN Tagging
Mode
Virtual Switch Mode Ethertype/TPID QoS_CQS
(Quality of
Service -
Classification
Queueing
Scheduling)
Dynamic VLAN
Registration Protocol
Spanning Tree
Implementation
valid per pack valid per unit
VPN Tagging Repeater N/A N/A N/A No STP
LAN Interconnect
(Dedicated
Bandwidth)
N/A N/A STVRP Multiple STP
LAN-VPN (Shared
Bandwidth)
N/A N/A
IEEE
802.1Q/IEEE
802.1ad
VLAN tagging
Spanning Tree
Switched Network
600 ... FFFF,
except for
8100
disabled GVRP Single STP
enabled
8100 enabled
Repeater 600 ... FFFF,
except for
8100
disabled N/A No STP
Interoperability of operational modes
Virtual Switches that are configured in the same operational mode can interwork.
Virtual Switches not configured in the same operational mode do not interwork in all
cases. If a Virtual Switch is configured in the “Repeater” mode or the “STP Switch”
mode, it can only interwork with Virtual Switches that are configured in the same
mode.
Interworking between a remote LAN-interconnect virtual switch and a VPN virtual
switch is not prohibited, because the LAN-interconnect mode can be seen as a special
case of the VPN mode.
VPN tagging mode
VPN tagging is used to identify user frames in the LAN-VPN mode of operation. VPN
tagging is often also referred to as “transparent tagging”.
Traffic provisioning
Operational modes
....................................................................................................................................................................................................................................
365-312-807R7.2
Issue 4, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
8-59
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