Posts Tagged ‘secondary network’

Emergency Access to Command Functions via Dual Ethernet Console Server

Wednesday, July 30th, 2014

In many cases, the challenge of dealing with a network outage is a fairly simple proposition. Once one has determined which network element has caused the outage, it’s simply a matter of connecting to the console port on the afflicted device and changing a few configuration parameters or running a troubleshooting routine. Unfortunately, in the era of colocation the task of accessing a malfunctioning device can often prove to be a bit more of a challenge if that device is located in a remote data center or locked up safely inside of a distant equipment enclosure. In cases like this, a Dual Ethernet Console Server can provide network administrators with redundant access to remote devices, even when primary network communication is not available.


Dual Ethernet Console Server – Other Options for Remote Access to Vital Network Elements

Friday, July 25th, 2014

A Dual Ethernet Console Server can provide network administrators with a variety of different options for accessing console port command functions on remote or inaccessible network elements. This is especially true if the Dual Ethernet Console Server includes separate routing tables for each Ethernet port. In addition to serving as a vital element in network redundancy applications, a Dual Ethernet Console Server can also simplify remote console access in applications that feature an isolated maintenance network and can also provide additional communication options for server room crash carts.


A Versatile AB Fallback Switch for System Redundancy Applications

Thursday, May 3rd, 2012

In most modern businesses, the local area network is such an essential part of corporate infrastructure that when the network crashes or is unavailable, all activity at the business slows to a crawl as users desperately try to figure an alternative means to communicate with fellow workers and access files and services that are normally available via network. With this in mind, the wisdom of a network fallback solution and the importance of having some sort of plan that allows quick switchover to a secondary fallback network are hard to ignore.


Console Servers Make It Easier to Deal with Problems at Remote Network Equipment Racks

Friday, June 10th, 2011

When a minor problem with network element brings down your main network, often all it takes to correct the situation is a few diagnostic and troubleshooting commands issued via the console port on the device that caused the problem. If the troublesome network element is located nearby, then it’s no problem to simply walk over to the device, connect to a console port and start issuing commands, but if the device that brought the network down is located miles away, then even a minor problem can halt network communication for hours while a service team travels to the remote site to deal with the problem in person. The best way to avoid network shutdowns caused by minor flukes at remote network equipment sites, is to implement an out of band management solution that includes a console server unit at the remote site.


The Serial Console Server – An Absolutely Vital Tool for Remote Network Equipment Management

Wednesday, March 9th, 2011

The task of managing remote network equipment can often be quite a challenge. When vital network devices are located at a remote, off-site installation, even relatively simple maintenance tasks such as accessing console port command functions or checking rack temperature and power conditions suddenly become much more difficult to achieve; especially when network communication with a remote site is interrupted. In cases like this, a serial console server can provide a valuable tool for managing remote network devices, allowing network administrators to access console ports on remote network elements and check environmental conditions and significant events at remote equipment racks, even when network communication is not available.


Out of Band Management – Access Command Functions on Remote Network Devices

Monday, February 7th, 2011

Out of band management provides a vital tool for network administrators by enabling secure, reliable communication with network devices even when the main network is down or not available. An intelligently planned out of band management solution helps to cut network maintenance costs by reducing costly service calls to remote equipment installations, and by providing administrators with a means to communicate with important devices without adding traffic to the main users network.


The Console Server – A Vital Tool for Network Administration

Friday, January 21st, 2011

In many cases, large corporate data centers are often located away from the central office, in a secure off-site location that provides access to sufficient electrical power for the routers, firewalls, servers and cooling equipment that populate the data center. This makes perfect sense when you consider security and power requirements, but it also presents somewhat of a challenge for the network administrators who are responsible for maintaining and supporting the devices. When a network element at an off-site data center crashes or starts to act up, administrators need a way to get their hands on the problematic device, without actually traveling to the remote data center. This explains why so many corporate data centers rely on the out of band management capabilities that a console server ( can provide.


Console Terminal Servers are the Heart of an Effective Out of Band Management Solution

Thursday, December 9th, 2010

Not too many years ago, most networks didn’t include an out of band management solution. That meant that if a firewall crashed or a switch froze and brought the network down with it, then there was no way to use the network to access the stricken network device in order to diagnose and troubleshoot the problem. In this case, the only way to fix the problem was often to travel to a remote network equipment site, access a local console port and start invoking commands until the problem was understood and remedied.


How Out of Band Management Can Make a Network Administrator’s Job Easier

Monday, October 18th, 2010

Most modern data centers actually include two separate networks; a main network and a secondary, maintenance network. Typically, the main network allows users to access files and communicate with other users, while the secondary maintenance network is used for out of band management, troubleshooting and testing.


Out of Band Management in a Remote Data Center

Monday, October 4th, 2010

In the past, most remote data centers depended on a single network for communication with the outside world. This worked quite well as long as the network was up and running, but if the network was down, then often there was no alternative means for network administrators to communicate with network elements in order to correct problems; the only way to communicate with a network device was to travel to the installation site and address the problem in person.