Fast EtherHub 3500 System User’s Guide
Installing the System 2-13
The following table shows the components to be tested.
Test Function/Component
Fast EtherHub-12i Fast EtherHub-12mi
Boot ROM All tests listed for Fast EtherHub-12i
Hub Configuration EEPROM and then the following tests:
RAM for Repeater Board CPU Console I/O
Repeater Information Base SRAM Flash ROM for SNMP Firmware
Repeater Interface Controller EEPROM for Stack Configuration
Routing Table for Internal SEM Port DRAM Buffer for Management Program
Input Queue for Internal SEM Port Management Bus Output Buffer
Output Queue for Internal SEM Port Management Bus Input Buffer
Routing Table for External SEM Port Network Interface Controller
Input Queue for External SEM Port
Output Queue for External SEM Port
Table 2.3 Diagnostic Test Functions
Hot Remove
The Fast EtherHub 3500 System supports “hot remove”
capability that allows you to connect/disconnect hubs or media
connectors from the system with minimal disruption to the
network. You can remove any network cabling without
affecting traffic passing across the internal repeater bus.
However, if the FlexBus 3500 stack cable is disconnected at
any point in the stack, or is not properly terminated, all Ethernet
and management traffic passing across the stack’s backplane
will be disrupted.
IWhen changing modules in the expansion slot or changing power
supply modules, first disconnect power to the concerned hub.