NEC ip8800-s6700 User Manual

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4.   
Troubleshooting Communication Failures Due to Resource Shortage [IP8800/S6700] [IP8800/S6600] [IP8800/S6300]
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* The log message of No. 1 may be output at the same time.
If these log messages are output, the function that newly uses the MAC address table cannot be set. Review the network 
configuration and set the configuration allowing for operation below the limit of the system's accommodating 
condition.
No. 2, 3, 4 and 6 in the above table shows that setting cannot be registered to the MAC address table by the 
configuration command. No. 5 shows that setting cannot be registered to the MAC address table of the authenticated 
terminal (authentication failed). For re-configuration, follow the steps below.
1. Review that configuration so that new entries will not be registered by MAC address learning, ARP/NDP 
learning, and IEEE802.1X authentication when a free space is provided in the MAC address table.
2. Clear the executed command (for No. 2, 3, 4 and 6 in the above table).
3. Make a free space in the MAC address table.*
4. Re-execute the command (for No. 2, 3, 4 and 6 in the above table) or re-authenticate (for No. 5).
* To provide a free space in the MAC address table, registered entries must be cleared. The clear procedure for each 
entry is shown in the table below. 
Table 4-3: Operation Log Message for Checking Resource Use Status
9
Web authentication
 (Static VLAN mode)
The login failed because of hardware restriction.
Note: This log is displayed when the show web-authentication logging 
command is executed.
10
MAC authentication
The login failed because of hardware restriction.
Note: This log is displayed when the show mac-authentication logging command 
is executed.
No.
File Name Specified for "get"
Log Message
1
Learned MAC addresses
Execute the clear mac-address-table command and the clear arp-cache 
command.
*1
2
Static MAC address
Static ARP/NDP
MAC address learning 
suppression function
Execute the configuration command below to clear the configuration.
*2
- no mac-address-table static
- no arp
- no ipv6 neighbor
- mac-address table learning vlan
3
IEEE802.1X
Execute the clear dot1x auth-state command to reset authentication.
*1
4
MAC address for Ring Protocol
- Execute the configuration command disable to disable Ring Protocol.
*2
- Execute any of the configuration commands below to clear the configuration.
*2
  - no axrp
  - no axrp vlan-mapping
  - no axrp-ring-port
  - no control-vlan
  - no mode
  - no vlan-group
5
IGMP/MLD Snooping
Execute the clear igmp-snooping all command or the clear mld-snooping 
all command.
*1
6
Web authentication
Execute the clear web-authentication auth-state command  to reset 
authentication.
*1
7
MAC authentication
Execute the clear mac-authentication auth-state command  to reset 
authentication.
*1
No.
Trigger
Log Message