Configuring LAN Emulation Services
aMove the ports in the backup ELAN to a temporary ELAN using the VLAN move option. Then move the ports from the temporary ELAN to the primary ELAN. It is important to first move to temporary ELAN first and this temporary ELANID must be in the LECS database.
bSoftware reset the backup LES/BUS after modifying the database.
The software reset of the LES/BUS must be done via the Command Line Interface of the CB7000. The software reset feature is only supported in the CB7000 3.5 or later version.
3Enable the Automatic LANE Redundancy.
LECS Redundancy The CoreBuilder 7000 switch supports LAN Emulation Configuration Service. The LECS may be activated on more than one switch in the network (up to 5).
Each CoreBuilder 7000 in the network is configured with the address of the active LECS. The configuration of multiple active LECS addresses (up to 5) is only possible using the LECS Select dialog box, upper part of the Backbone and Services window.
One active LECS address can be entered via the command line interface (LMA) and the remaining have to be set via the NMS. This limitation will be eliminated in a future release of the CoreBuilder 7000 software.
How Do Lane Clients Take Advantage of Multiple LECSs?
If a LAN Emulation Client (LEC) uses the Well Known LECS Address (WKA) to configure a direct connection to the LECS, the first CoreBuilder 7000 in to which connection is established converts the WKA to the first active LECS address (first among up to 5 LECS addresses programmed into the CoreBuilder 7000 via the LMA and NMS). The CoreBuilder 7000 then forwards this connection request to the active LECS. If the connection setup fails, the CoreBuilder 7000 changes the WKA to the next active LECS address and then tries to connect again. This process is continued until an active LECS is reached. If none of the LECSs are reachable, then the direct configuration setup request is rejected.
If a LAN Emulation client does not support the use of WKA, it may also request the LECS addresses from the CoreBuilder 7000 via the ILMI and try to reach the LECSs directly.
