Filter
Top Products
Configuring LANE 4-3
Implementing LANE
• LANE server (LES)—A server that registers LECs to join the ELAN. In LANE 1.0,
without Simple Server Redundancy Protocol (SSRP), each ELAN has only one Cisco
LES, which handles LAN Emulation Address Resolution Protocol (LE_ARP) requests.
• Broadcast-and-unknown server (BUS)—A server that floods unknown destination
addresses and forwards multicast and broadcast traffic to clients within an ELAN. In
LANE 1.0 without SSRP, one Cisco BUS exists per ELAN.
Implementing LANE
The following sections describe specific information and considerations you might need to
consider prior to LANE implementation:
• Supporting LAN Protocols
• Addressing
• Assigning Components to Interfaces and Subinterfaces
Supporting LAN Protocols
The ATM switch router supports both Ethernet and Token Ring LANE. This chapter
describes only Ethernet configuration information. For Token Ring configuration
information, refer to the ATMSwitch Router Software Configuration Guide.
Addressing
On a LAN, packets are addressed by the MAC-layer address of the destination and source
stations. To provide similar functionality for LANE, every LANE client must have a MAC
address. In addition, every LANE component (LES, LEC, BUS, and LECS) must have a
unique ATM address.
All LANE clients on the same interface have the same automatically assigned MAC
address, which is also used as the end-system identifier (ESI) part of the ATM address.
Although client MAC addresses are not unique, all ATM addresses are unique.