Compaq Netelligent 2524 User Manual page 101

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G-12 Glossary
Stack
A stack consists of one or more 2524/2624 or 3512/3612 repeaters. The
maximum number of repeaters in a 2524/2624 repeater stack is 3 and in
a 3512/3612 repeater stack is 5.
Stack Order
The stack order or stack group map is used by an SNMP network
manager to display a graphical representation of a stack that matches the
actual physical representation. The stack order is critical to insure that
the correct ports are enabled/disabled by a network manager.
Stack Table
The Stack Table is a 100Mbps MIB object (nws2StackTable) that has an
entry for each 2524/2624 or 3512/3612 repeater in a stack. Each entry
contains the backplane number, module type, MAC address, IP address,
IP default gateway, IP net mask and reset. An SNMP network manager
can change these configuration parameters for each unit in a stack by
updating the Stack Table in any unit.
Statistics, Ethernet
The following terms are associated with Ethernet statistics:
Alignment Error: A frame alignment error occurs when a packet is
received but not properly framed (i.e., not a multiple of 8 bits).
Autopartition: A port is autopartitioned (disabled) by the hardware
after a continuous collision for 1024 to 2048 bit times or after it detects
32 consecutive collisions.
Collision: A collision occurs when two or more nodes try to transmit
simultaneously. Large numbers of collisions may indicate a high
network load.