1-6 CHAPTER 1: WHAT IS THE LINKBUILDER MSH?
DUA1800-0AAA04
ECS modules can connect to any of the three buses, however, you
should note that an ECS module attached to Buses E2 or E3 will
not have full statistics gathering facilities. Note also that an ECS
module should only be installed in slots 1 to 10 in the MSH
chassis.
Bus selection on MSH modules is controlled via link settings on
the board or through a remote management tool such as
Transcend software or using the front panel RS232 port.
You will find further information about this subject in Chapter 3,
The Modules on page 1-8 in this user guide and in the user guide
that accompanies each module.
Token Ring Support
The MSH supports up to five individually managed token rings
using a bus tracked to all slots in the chassis. Token rings are
created using RingBuilder and MAU modules. Each RingBuilder
has a local ring section number associated with it, set by switches
on the RingBuilder or by the Management Module. Similarly all
MAU modules have local ring section numbers. A RingBuilder
combines all MAUs with local ring section number s that match
the RingBuilder's local ring section number into one logical token
ring. Any MAUs with a local ring section number of zero, or one
that does not match the local ring section numbers of any
RingBuilder are left isolated as single, stand-alone token rings.
The MSH supports tokens rings at both 4Mbps and 16Mbps but
all modules in a local ring section must operate at the same
speed.
Chassis.bk : CHAPTER1 Page 6 Monday, February 10, 1997 1:11 PM