Chapter 13
LANE Services
Cajun M770 ATM Switch User’s Guide
155
Note:
Since by default, all modules have a LES/BUS named “default,” as soon as
the number of modules in your entire network exceeds the maximum number of
LESes per ELAN as defined in
lane elan max les
(default 5, maximum 10),
you should start deleting or disabling servers.
Proprietary resilient standby LESes
The M770 ATM Switch LECS supports a proprietary standby LESes. This will enable
resiliency of the LES/BUS in case the module hosting the LES/BUS fails. You can
configure up to 10 modules to host the same ELAN name (for example, “default”).
Only the first LES to contact the LECS will host the “default” ELAN. All other LESes
will provide standby support for the ELAN.
Should the original LES fail for any reason, one of the standby LESes will become
the main LES and host the “default” ELAN. This ensures that the ELAN remains up
and available to all LECs on the ELAN.
Note:
Lucent strongly recommends that you use distributed LES/BUS services instead
of resilient.
Proprietary Distributed LANE Services
The M770 ATM Switch LECS supports a proprietary system for a distributed LES/
BUS in advance of implementing LANE version 2. This will enable not only
resiliency of the ELAN but will also increase the number of clients (LECs) that can
be supported per ELAN on multiple modules (up to 2,500 LECs per ELAN). This is
achieved by allowing a single ELAN to be distributed over multiple LES/BUS pairs
in several modules (up to 10 LES/BUS’s per ELAN). Each client connects to a single
LES/BUS as normal but it could be any of the LES/BUS pairs that are supporting
the ELAN.
Virtual Channel Connection (VCC) requirements
In a single ELAN that supports the proprietary Distributed LANE Service:
— each LES has a point-to-point and a point-to-multipoint VCC mesh to each
of the other LESes in the ELAN.
— each BUS has a point-to-point and a point-to-multipoint VCC mesh to each
of the other BUSes in the ELAN
These connections are then used to exchange information about the registered
clients in the ELAN.
Summary of Contents for CAJUN M770
Page 2: ...2 Cajun M770 ATM Switch User s Guide...
Page 14: ...xii Cajun M770 ATM Switch User s Guide...
Page 54: ...Chapter 4 Managing Miscellaneous Commands 36 Cajun M770 ATM Switch User s Guide...
Page 64: ...Chapter 5 Managing Physical Ports 46 Cajun M770 ATM Switch User s Guide...
Page 106: ...Chapter 6 Managing Virtual Ports 88 Cajun M770 ATM Switch User s Guide...
Page 112: ...Chapter 7 Managing Module Hardware 94 Cajun M770 ATM Switch User s Guide...
Page 122: ...Chapter 8 Managing PVC Connections 104 Cajun M770 ATM Switch User s Guide...
Page 158: ...Chapter 11 Managing the Management LEC 140 Cajun M770 ATM Switch User s Guide...
Page 176: ...Chapter 13 LANE Services 158 Cajun M770 ATM Switch User s Guide...
Page 266: ......
