3com 10005622 Benutzerhandbuch

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A-2
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PPENDIX
 A: S
YSTEM
 S
PECIFICATIONS
Table A-2   Standards Supported by the SuperStack II Switch 3900 
Standard Type
RFC Supported
SNMP
SNMP protocol (RFC 1157)
MIB II (RFC 1213)
Ethernet MIB (RFC 1284)
Bridge MIB (RFC 1286)
Software 
Installation
tftp (RFC 959)
Terminal Emulation
telnet (RFC 854)
rlogin (RFC 1282)
Protocols Used for 
Administration
UDP (RFC 768)
IP (RFC 791)
ICMP (RFC 792)
TCP (RFC 793)
ARP (RFC 826)
Table A-3   LED Indicators on the SuperStack II Switch 3900
LED
Type
Description
System LEDs 
Power
Green — System is on.
Off — System is receiving no power.
Fault
Off — System is operational.
Solid or Blinking Yellow — System 
failed diagnostics, or some other 
operational failure has occurred.
Port LEDs 
Stat
Off — Port is off-line.
Blinking Green — Port is online but 
disabled.
Green —
 
Port is online and enabled.
Pckt
Off — Port is off-line.
Blinking Yellow — Port is passing 
data.
Yellow — Port is passing data.