Table B-1 Troubleshooting Chart, Symptom Action

Appendix B: Troubleshooting

Problems Accessing the Management Interface

		Table B-1 Troubleshooting Chart
	Symptom	Action

	Cannot connect using Telnet,	• Be sure the switch is powered up.
	web browser, or SNMP	• Check network cabling between the management station and the switch.
	software
	software	• Check that you have a valid network connection to the switch and that the

		port you are using has not been disabled.
		• Be sure you have configured the VLAN interface through which the
		management station is connected with a valid IP address, subnet mask
		and default gateway.
		• Be sure the management station has an IP address in the same subnet as
		the switch’s IP interface to which it is connected.
		• If you are trying to connect to the switch via the IP address for a tagged
		VLAN group, your management station, and the ports connecting
		intermediate switches in the network, must be configured with the
		appropriate tag.
		• If you cannot connect using Telnet, you may have exceeded the maximum
		number of concurrent Telnet/SSH sessions permitted. Try connecting
		again at a later time.

	Cannot connect using	• If you cannot connect using SSH, you may have exceeded the maximum
	Secure Shell	number of concurrent Telnet/SSH sessions permitted. Try connecting
		again at a later time.
		• Be sure the control parameters for the SSH server are properly configured
		on the switch, and that the SSH client software is properly configured on
		the management station.
		• Be sure you have generated a public key on the switch, and exported this
		key to the SSH client.
		• Be sure you have set up an account on the switch for each SSH user,
		including user name, authentication level, and password.
		• Be sure you have imported the client’s public key to the switch (if public
		key authentication is used).

	Cannot access the on-board	• Be sure you have set the terminal emulator program to VT100 compatible,
	configuration program via a	8 data bits, 1 stop bit, no parity, and the baud rate set to any of the
	serial port connection	following (9600, 19200, 38400, 57600, 115200 bps).
		following (9600, 19200, 38400, 57600, 115200 bps).
		• Check that the null-modem serial cable conforms to the pin-out
		connections provided in the Installation Guide.

	Forgot or lost the password	• Contact your local distributor.

B-1

ES4649, ES4625 specifications

The Microsoft ES4625 and ES4649 are advanced enterprise-grade servers designed to meet the demands of modern data centers. They blend cutting-edge technology with robust performance, making them an ideal choice for businesses that require reliable processing capabilities, enhanced storage solutions, and improved energy efficiency.

One of the standout features of the ES4625 is its powerful processing capability. Equipped with the latest Intel Xeon Scalable processors, the server can handle a significant workload, making it suitable for various applications, including virtualization, cloud computing, and big data analytics. The multi-core architecture allows for efficient parallel processing, thereby improving response times and overall system performance.

On the other hand, the ES4649 offers an even more powerful setup, with the option to support high core counts and a larger memory footprint. This feature is particularly beneficial for enterprises that run demanding applications requiring substantial processing power and memory capacity. Both models support DDR4 memory, ensuring faster data access and overall system efficiency.

Storage adaptability is another key characteristic of these servers. The ES4625 and ES4649 come with multiple drive bays supporting various storage options, including SSDs and traditional HDDs. This flexibility allows organizations to configure their storage according to their specific performance and capacity needs. With support for advanced storage technologies like NVMe, enterprises can achieve unparalleled data transfer speeds, which is crucial for data-intensive applications.

In terms of manageability, both models are equipped with Microsoft’s innovative management tools. The integration of these tools facilitates easy monitoring, troubleshooting, and maintenance of server health and performance, significantly reducing downtime. Moreover, the servers are designed with enhanced security features to protect against unauthorized access and data breaches, ensuring that sensitive information remains secure.

Energy efficiency is another critical characteristic of the ES4625 and ES4649. These servers are designed with power-saving technologies that reduce energy consumption without compromising performance. This aspect is particularly advantageous for businesses looking to lower their operational costs and carbon footprint.

Overall, the Microsoft ES4625 and ES4649 offer a compelling combination of performance, flexibility, and security. They are engineered to support the increasingly complex demands of modern enterprise environments, making them a valuable investment for organizations seeking reliable, high-performing server solutions. Whether for virtualized workloads, cloud services, or heavy data computations, these servers are designed to deliver exceptional results.

Microsoft ES4649 manual Table B-1 Troubleshooting Chart, Symptom Action, Software, Appropriate tag

Models: ES4649 ES4625

Appendix B: Troubleshooting

Problems Accessing the Management Interface

Table B-1 Troubleshooting Chart

Symptom

Action

• Be sure the switch is powered up.

software

port you are using has not been disabled.

the switch’s IP interface to which it is connected.

appropriate tag.

again at a later time.

Cannot connect using

the management station.

key to the SSH client.

including user name, authentication level, and password.

key authentication is used).

connections provided in the Installation Guide.

• Contact your local distributor.

ES4649, ES4625 specifications