3com 100 TX User Manual
1-4
C
HAPTER
1: I
NTRODUCTION
Hub Functions
The LinkBuilder FMS 100-TX Hub supports the standard functions of an
IEEE 802.3 repeater, as listed in Table 1-1.
IEEE 802.3 repeater, as listed in Table 1-1.
Table 1-1 Supported IEEE 802.3 Repeater Functions
Standard Repeater
Function
Function
Description
Signal retiming
Restores the timing and amplitude of the received signal
before retransmitting the signal.
before retransmitting the signal.
Carrier integrity monitor
Examines the packets being received for invalid framing;
blocks excessive invalid frames to prevent them from
harming the network.
blocks excessive invalid frames to prevent them from
harming the network.
Jabber control
Inhibits overly long transmissions of data generated by
station hardware failure. This function is activated once a
received packet has exceeded the jabber threshold. Refer to
the 802.3u specification for additional information.
station hardware failure. This function is activated once a
received packet has exceeded the jabber threshold. Refer to
the 802.3u specification for additional information.
Automatic partition/
reconnection
reconnection
Prevents the faulty segment’s carrier activity from reaching
the hub and being propagated throughout the network.
the hub and being propagated throughout the network.