None

1, the scene through the portable machine with a network cable directly connected to the device can not PING through, replace a number of network cables are so, while the portable machine can be connected to other devices can be logged on normally, can be excluded from the network cable, portable and other external reasons;
2, by other devices through the ECC can be logged on to the device, can be the device for the alarm, the performance of querying their respective operations, can be further confirmed to be the device itself communication problems;
3, OSN3500 equipment on the OSN3500 device has dual master control, master and backup inversion, retain a master control (17/18 are trying), remove other single board only retain a master control and other operations, are unable to solve the problem, can be ruled out that other single board problems lead to the possibility of the problem;
4, apply for a new master control and an AUX single board, replacement is invalid;
5, cfg-set-oamport query the status of the ETH port to confirm that the port is open, and also closed. open, also carried out close and then open operation, invalid;
6, consult the R & D, R & D to provide a data collection tool to collect data, after analyzing the reasons for: the Ethernet port is not UP, no routing information, only two routes, so can not ping through;
7, with cm-get-lanaccess query to confirm that the status of the close, set to open can be normal. The problem is solved. The problem is solved.

1. network cable problem;
2. main control board or AUX single board failure;
3. device subrack problem;
4. software setting problem

Command line analysis:

Name	cfg-set-oamport
Function	Sets the maintenance port switch
Command Level	System Monitor
Open Range	User Level
Version	5.36.17.XX&5.21.17.XX
Input Format	:cfg-set-oamport:PortType, state; number of parameters = 2, parameter block repeats
Input Parameters	Parameter position	Meaning and value of parameter
	1	Port type COM: COM port ETH: ETH port OAM: OAM port F_f: F&f port
	2	Port status: open / close (port default: all ports are closed except ETH port which is open)

Name: cm-set-lanaccess	cm-set-lanaccess
Function	Sets the Ethernet access control to close or open the Ethernet driver.
Command Level	System maintenance
Open Scope	User Level
Versions	All OSP versions
Input format	Position definition, number of parameters = 2, repeat mode: no repeat
Input parameters	Parameter position	Parameter value
	1	LAN NO: Ethernet number; numeric format;
	2	STATE: Ethernet allow/prohibit access flag Customized format, string close-prohibit (0), open-allow (1)
Output format	Error code NSERR_LAN_ERR_PARA: parameter error NSERR_LAN_DBF_FAIL: database operation error NSERR_LAN_FUNCALL_FAIL: function call error NSERR_LAN_SUCCESS: operation successful
Example	:cm-set-lanaccess:0,close;
Cautions	1. Don't use this command easily, or you will not be able to use the management terminal! And after closing the Ethernet access, the extended ECC function working through Ethernet will not work!
Remarks	1. At present, only the case where the Ethernet number is set to 0 is allowed.

Which cm-set-lanaccess corresponding to the entry is the network management on the Ethernet access control, the command is stored library, if set to close, unplugging the board can not be restored.