When Resource Shortage Of Vlan Identification Table Occurs; Checking Vlan Identification Table Resource Usage; Action To Be Taken When Vlan Identification Table Resource Shortage Occurs - NEC IP8800/S2400 Series Troubleshooting Manual

4.
Troubleshooting Communication Failures Due to Resource Shortage [IP8800/S6700] [IP8800/S6600] [IP8800/S6300]
4.2 When Resource Shortage of VLAN Identification
Table Occurs
4.2.1

Checking VLAN Identification Table Resource Usage

This system outputs an operation log message when the usage of VLAN identification table reaches 80% of the
accommodating condition. The operation log message to be output is shown in the table below.
Table 4-4: Operation Log Message for Checking Resource Usage
No. Trigger
1 When VLAN identification
table use status reaches 80%
Communication is not immediately affected when the system reached usage of 80%. However, if the VLAN
identification table is continuously used by L2 authentication function or the like, the limit of the accommodating
condition may be reached and resource shortage disabling authentication by the L2 authentication function may arise.
Check the set value and accommodation value in advance so that the limit of the accommodating condition will not be
exceeded.
Check the usage of the VLAN identification table by referring to the manual "Configuration Settings."
4.2.2 Action to Be Taken When VLAN Identification Table Resource
Shortage Occurs
When usage of VLAN identification table reaches the limit of the accommodating condition, the corresponding log
message is output at the timing listed in the table below.
Table 4-5: Operation Log Message for Checking Resource Use Status
No. Trigger
1 Setting tag translation function
2 Setting protocol VLAN
3 Setting MAC VLAN static entry
4 IEEE802.1X authentication
(VLAN authentication
(dynamic))
5 Authentication VLAN
6 Web Authentication
(Dynamic VLAN mode)
VLAN classification table entries was beyond 80 percent of capacity.
- The vlan mapping entry can't be registered at VLAN classification table (VLAN <ID>,
port(<NIF No.>/<Port No.>)).
- The vlan mapping entry can't be registered at VLAN classification table (VLAN <ID>,
Channel Group <Channel Group Number>).
- The protocol based VLAN entry can't be registered at VLAN classification table (VLAN
<ID>,port(<NIF No.>/<Port No.>)).
- The protocol based VLAN entry can't be registered at VLAN classification table (VLAN
<ID>,Channel Group <Channel Group Number>).
- The protocol based VLAN entry can't be registered at VLAN classification table (protocol
{ethertype | llc | snap-ethertype }<HEX>,VLAN <ID>).
- The protocol based VLAN entry can't be registered at VLAN classification table (protocol
{ethertype | llc | snap-ethertype }<HEX>,Vlan-Protocol <Protocol name>).
- The MAC-VLAN MAC Address entry can't be registered at hardware tables.
- The 802.1X Supplicant MAC address of MAC VLAN can't be registered at hardware tables.
Note: This log is displayed when the show dot1x logging command is executed.
- The registration of the MAC address failed.
Note: This log is displayed when the show fense logging command is executed.
- The login failed because of hardware restriction.
Note: This log is displayed when the show web-authentication logging
command is executed.
Log Message
Log Message
133