Troubleshooting guide

Index
92
forgotten user ID, 14
from remote terminal not possible, 16
troubleshooting, 14
login authentication
using RADIUS not possible, 17
long-life solution
failure information, 77
M
MAC-based authentication
troubleshooting communication failures, 59
memory card
cannot copy or write information, 19
writing data to, 81
MIBs
cannot be obtained from SNMP manager, 68
mirroring
port mirroring failures, 74
MLD snooping
multicast forwarding, 44
multicast forwarding by IGMP snooping
troubleshooting, 42
multicast forwarding by MLD snooping not
possible, 44
N
neighboring device information
cannot be obtained by LLDP functionality, 69
network interface communication failures, 24
NTP
communication failures, 71
O
obtaining
failure information, 80
operation terminal problems, 15
P
password
forgotten administrator mode password, 14
forgotten at login, 14
PoE problems [AX2200S] [AX1240S]
troubleshooting, 29
port is in inactive status by IEEE 802.3ah/UDLD,
72
port mirroring
failures, 74
power saving
scheduling disabled, 76
troubleshooting, 75
ppupdate command
troubleshooting, 21
Q
QoS control configuration information
checking, 73
R
RADIUS
troubleshooting login authentication, 17
RAMDISK
cannot copy or write information, 20
redundant configuration
troubleshooting, 66
remote terminal
cannot log in, 16
restore command
data restoration fails, 21
Ring Protocol functionality
troubleshooting, 36
S
saving
cannot save into startup configuration file,
19
troubleshooting, 19
secure Wake-on-LAN
troubleshooting communication failures, 63
show tech-support command
detailed display contents, 84
SNMP
troubleshooting communication failures, 68
Spanning Tree functionality
failures, 34
startup configuration file
cannot save information, 19
Switch
failure analysis, 3
troubleshooting, 9
troubleshooting procedure, 10
T
time information
NTP cannot get, 71
transferring file via FTP, 82
traps
cannot be received by SNMP manager, 68
troubleshooting
100BASE-FX [AX1250S]/1000BASE-X
problems, 27
10BASE-T/100BASE-TX, 25
10BASE-T/100BASE-TX/1000BASE-T
problems, 26
binding database, 23
cannot obtain MIBs from SNMP manager,
68
communication failures, 66
communication failures in filtering and QoS
configurations, 73
communication failures in high-reliability
functionality based on redundant
configuration, 66
communication failures in IEEE
802.3ah/UDLD functionality, 72
communication failures in neighboring
device management functionality, 69