3.2.4 Network Settings Check Sheet

After making the network settings as planned, verify them with the following check sheet in order to avoid any problems in advance.

If there are any problems with the contents of your settings, please review them with reference to "3.2.2 Designing the Network Configuration."

Table 3.2 Network Settings Check Sheet
Item		Action
Cable	Connection	Check that the cable is connected. Check that the cable is not damaged. Check that the LED lamp of the port to which the switch cable is connected is flashing. If the lamp is not flashing, replace the cable. Check that the cable is connected correctly. Check that the system is correctly wired. If you are using a blade server, the wiring requirements differ according to the location of blades in the server cabinet and the allocation of network ports.
Cable	Type	Check that you are using the correct type of cable (straight-through cable or crossover cable). Functions such as Auto-MDIX, which automatically recognize cable types, may require Auto-negotiation as the communication mode. For more details, refer to the appropriate switch manual. Check that you are using the correct category of cable (such as 5 or 5e) for the communication speed and cable length.
Switch settings	STP	Check Spanning Tree Protocol (STP) settings. Depending on the STP specifications, when STP is set, the port to which the physical adapter connects may be temporarily blocked when the physical adapter links up, preventing communication. If necessary, change the ping interval to prevent GLS from switching adapters before the port is blocked. For more details on changing the ping interval, refer to "6.2.4 hanetpoll."
	VLAN ID	Check for error in VLAN ID setting.
	Communication mode	Check that the communication modes of the own node interface and the switch port are the same. If the communication modes of the switch and of the own node are different (for example, if the own node is set to use Auto-negotiation and the switch is set to use fixed full-duplex), collisions can occur, leading to packet loss. Note that devices on either end of Ethernet connections must use one of the following communication modes: - Auto-negotiation - Auto-negotiation - 100M full-duplex - 100M full-duplex - 100M half-duplex - 100M half-duplex - 10M full-duplex - 10M full-duplex - 10M half-duplex - 10M half-duplex
	IP address	If the switch is a ping target, check that the IP address is set. In particular, check that the same IP address does not specify another network device or server at the same time.
NIC speed		Check that NIC speeds in the own node are the same.
Network configuration		Check that GLS supports the network connection method.

Note

If you have set an STP, after replacing a cable due to an error on the transmission path, it may take one or two minutes for communication to be restored.