Enterasys 9500 Installation Instruction
Operation
3-4
System Management Buses
There are two management channels within the SmartSwitch 9500 system:
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SMB-1
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SMB-10
These buses provide out-of-band management and inter-module management
communication.
communication.
SMB-1 Bus
The SMB-1 is a 1 Mbps management bus located within the SmartSwitch 9500
chassis. This bus is used by all diagnostic controllers in the system, including the
following:
chassis. This bus is used by all diagnostic controllers in the system, including the
following:
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Connectivity modules
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Power supply modules
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The environmental module
The SMB-1 transports inter-chassis information between system components,
such as power and environmental information, as well as diagnostic messages.
Periodic loop-back tests are performed by all modules that share this bus to
ensure the validity of SMB-1. In the event a failure is detected on SMB-1, the
SMB-10 may be used as an alternate communication channel.
such as power and environmental information, as well as diagnostic messages.
Periodic loop-back tests are performed by all modules that share this bus to
ensure the validity of SMB-1. In the event a failure is detected on SMB-1, the
SMB-10 may be used as an alternate communication channel.
SMB-10 Bus
The SMB-10 is a 10 Mbps management bus located within the SmartSwitch 9500
chassis, which is also used for inter-chassis communication of modules, as well as
serving as an out-of-band management channel into the SmartSwitch 9500. The
SMB-10 is externalized from the chassis via an optional Ethernet Port Interface
Module (EPIM) located on the front of the environmental module. Through an
EPIM connection, full SNMP management of the SmartSwitch 9500 is available
out-of-band from user data. Modules that share the SMB-10 bus periodically send
out loopback packets to ensure the validity of the SMB-10. In the event a fault is
detected on the SMB-10, the SMB-1 can be used as an alternate communication
channel by the modules.
chassis, which is also used for inter-chassis communication of modules, as well as
serving as an out-of-band management channel into the SmartSwitch 9500. The
SMB-10 is externalized from the chassis via an optional Ethernet Port Interface
Module (EPIM) located on the front of the environmental module. Through an
EPIM connection, full SNMP management of the SmartSwitch 9500 is available
out-of-band from user data. Modules that share the SMB-10 bus periodically send
out loopback packets to ensure the validity of the SMB-10. In the event a fault is
detected on the SMB-10, the SMB-1 can be used as an alternate communication
channel by the modules.