The Ethernet packets are carried across the SDH network in a channel. Each channel
comprises up to 63 VC12 or up to 2 VC3 concatenated. These VC12s or VC3s behave
in the same way as normal SDH VC12s from an E1 port respectively normal SDH
VC3s from an E3 port.
This operation mode support the following features:
• Learning bridges
• Spanning tree
• Additional SDH bandwidth
• Virtual Switch and
• CID (Customer Identifier).
Special case of the LAN-VPN mode
The LAN interconnect mode of operation is a special case of the LAN-VPN operation.
In the LAN interconnect mode a virtual switch may contain LAN and WAN ports of a
single user only.
The TransLAN
®
cards can support both modes of operation simultaneously as long as
the corresponding virtual switches do not include the same WAN ports.
virtual
switch
cross-
connection
LAN ports
WAN ports
Line port
Traffic provisioning
Operational modes
....................................................................................................................................................................................................................................
365-312-807R7.2
Issue 4, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
8-63
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