Troubleshooting guide

1. Overview
6
Category Sub-category See
100BASE-FX [AX1250S]
/1000BASE-X communication
failure
3.4.4 Actions to be taken for 100BASE-FX
[AX1250S]/1000BASE-X problems
PoE problems [AX2200S]
[AX1240S]
3.4.5 Actions to be taken for PoE problems
[AX2200S] [AX1240S]
Link aggregation failure
3.4.6 Communication failures when link
aggregation is used
Layer 2 network
communication failures
VLAN failure
3.5.1 Layer 2 communication by VLANs is not
possible
Spanning Tree failure
3.5.2 Failures occurring when the Spanning
Tree functionality is used
Ring Protocol failure
3.5.3 Failures occurring when the Ring
Protocol functionality is used
DHCP snooping failure
3.5.4 Failures when the DHCP snooping
functionality is used
IGMP snooping failure
3.5.5 Multicast forwarding by IGMP snooping
is not possible
MLD snooping failure
3.5.6 Multicast forwarding by MLD snooping
is not possible
IPv4 network
communication failures
Communication not possible
3.6.1 Communication is not possible or is
disconnected
Layer 2 authentication
communication failures
--
3.7.1 Communication failures occurring when
IEEE 802.1X is used
--
3.7.2 Communication failures occurring when
Web authentication is used
--
3.7.3 Communication failures occurring when
MAC-based authentication is used
--
3.7.4 Communication failures occurring when
secure Wake-on-LAN is used [OP-WOL]
Communication failures in
the high-reliability
functionality based on a
redundant configuration : in
high-reliability functionality
based on redundant
configuration :
communication failures in
high-reliability functionality
based on redundant
configuration :
troubleshooting
Uplink redundancy failure
3.8.1 Communication failures occurring when
uplink redundancy is used
SNMP communication
failures
The MIB cannot be obtained.
3.9.1 MIBs cannot be obtained from the
SNMP manager