The concept of management is very important to all walks of life. If an enterprise cannot effectively manage it, the cohesion of the Enterprise will be very weak and the development of the Enterprise will be severely hindered; if an army is not managed, it will become a sandbox with no fighting power. If a network cannot be effectively managed, the use of such network resources will become messy. Therefore, it is very important to manage the network. For the management of the grass-roots layer in the network, we usually implement it through a switch, that is, a network-managed switch. Therefore, selecting a network-managed switch to achieve LAN connection will make the network smoother.
Currently, vswitches on the market are divided into non-network management switches and network management switches based on whether they can be managed. Non-Network Management switches are switches that cannot be managed by computers. A network management switch can be managed through a computer in the network. The management content of a network management switch is to monitor the usage of each LAN port through the Management port, and to divide VLANs and set Trunk.
Network Management switches can be managed in three ways. They are managed through RS-232 serial or parallel ports), managed through WEB browsers, and managed through network management software.
Through the RS-232 serial port or parallel port) to manage the Network Management Switch, mainly through a serial cable provided by the Network Management Switch, directly connected to the computer, administrators manage vswitches through programs provided by the operating system in the computer, such as "Super Terminal" programs. These vswitches do not occupy network bandwidth, so they are generally called "out-of-band management ".
The Network Management Switch managed by WEB browser is different from the Network Management Switch managed by RS-232 serial port or parallel port, A Network Management Switch managed by a WEB browser does not necessarily need to be directly connected to a computer. You only need to provide an IP address for the Network Management Switch through a serial port or other means, the administrator can open a WEB browser on any computer and enter the IP address of the switch, that is, remote management is supported. Because this management method occupies network bandwidth, it is also called "in-band management ".
Network Management switches managed by network management software can be managed by network software as long as they comply with the SNMP protocol. Such switches also occupy network bandwidth and are also "in-band management ".
Currently, many vswitches on the market support three management methods. Of course, one or two management methods are also supported. Therefore, many users encounter some problems when purchasing a network management switch. Based on this phenomenon, we recommend several Network Management switches for your reference.
Ruijie network RG-S1926SReference price: 4300 RMB)
RG-S1926S is a stack, network management intelligent switch. It has a Gbps back-board bandwidth, and the packet forwarding rate of this switch reaches the line speed value of the state network quickly. In 10 MB, the packet forwarding rate is 14881pps, and in MB, the packet forwarding rate is 148810pps. In addition to 24 10/100 Mbps adaptive ports, the vswitch can connect 1 to 2 10-Gigabit Single-Mode Optical Fiber and multimode optical fiber through one expansion slot.
The vswitch supports WEB browser management. The administrator can configure, modify, and view the vswitch on the management computer. RG-S1926S can also be managed through the Chinese network management software RGM, RGM can automatically draw a network connection topology, and various configuration and management, to the administrator in the operation has brought great convenience. RG-S1926S supports VLAN, Port Mirroring, port bandwidth limits, minimum granularity up to 64 Kbps. The vswitch also supports MAC Address binding, which prevents illegal users from logging on to the internal network and brings security to the network. RG-S1926S can realize the suppression of broadcast storm, and monitor the network, let the user get a smoother network.
Comments: The price of RG-S1926S determines its performance, although the performance of this switch is not strong, but relative to its price is very reasonable. The network management function of the vswitch is satisfactory and supports remote management. As long as the local network is connected to the Internet, the administrator can perform effective management even if the administrator is not in the LAN. However, this switch does not support gigabit connections, so it is only suitable for small and medium network access.
Annett AT-8024Reference price: 5000 RMB)
Annett AT-8024 is a stack-able, network-managed switch with 6.5 Gbps backboard bandwidth, a maximum packet forwarding rate of 10/100 Mpps, and 24 Mbps ports, although the switch supports stacking, it does not contain expansion slots and cannot connect to a gigabit network. However, this switch can play a core role in a MB small network.
This switch has a variety of management features, it can be managed through the WEB browser; can also be connected to a dedicated management computer through the RS-232 serial port for management; can also be based on the SNMP Protocol, through the command line interface, use TELNET to manage instances on the command menu interface. The biggest feature of annett AT-8024 is the unique "Enhanced Stacking" technology to stack up to 24 AT-8024 switches, in addition, it can be combined with switches in the AT-8000 series to expand the network scale. Annett AT-8024 also provides a wide range of functions. It supports VLAN, broadcast storm control, and packet header blocking (HOL) prevention mechanisms. It also supports various authentication functions, this allows the functions of the vswitch to meet the needs of various networks.
Comments: The performance of this switch is quite satisfactory, and its functions are also very rich. The unique stack technology further improves the scalability of this switch, but it does not support Gigabit Networks, it is only applicable to access switches that play a core role in a 10-Gigabit network or have the lowest layer in a large and medium-sized network.
WAN network U Hammer 24EReference price: 6400 RMB)
The Hong Kong Bay network U Hammer 24E is a Gigabit Switch with 24 10/100 Mbps adaptive ports and 2 expansion slots, these two expansion slots can be connected to a gigabit network through a variety of Gigabit Optical Fiber modules provided by the WAN network. The Hong Kong Bay network U Hammer 24E has a Gbps backboard bandwidth and a packet forwarding rate of 6.6Mpps. When this switch is used for aggregation in large and medium-sized networks, it can also meet the needs well.
The WAN network U Hammer 24E is also well managed. It supports CLI, TELNET, SNMP, RMON, and Web management to remotely manage the vswitch; the vswitch also supports cluster management, which allows 36 Hammer series vswitches In the WAN network to be connected together to form a management domain. The Hong Kong Bay network U Hammer 24E supports VLAN and can activate 256 VLANs at the same time. This function is very useful for creating large and medium-sized networks. The vswitch also supports binding MAC addresses and ports to prevent unauthorized users from logging on to the network. The U Hammer 24E of the WAN network supports port speed limiting, that is, traffic control can be implemented. The speed limiting granularity of each port can be 10 kb or 100 Kbps. The switch can also protect the CPU by allowing only specific broadcast files to be transmitted to the CPU for processing through administrator settings. In addition to the above functions, the U Hammer 24E of the WAN network can also suppress broadcast and flexibly stack broadcast.
Comment: the unique cluster management is the biggest feature of this switch. It has rich functions and satisfactory overall performance. It is suitable for convergence of large and medium-sized networks and core use of small networks.
US network FSM726Reference price: 6600 RMB)
The switch of the US network equipment company gives users the feeling that the performance is good and the price is low. FSM726 is no exception. This vswitch has 6.5 Gbps of Backboard bandwidth and the packet forwarding rate reaches Mpps. The total number of FSM726 ports reaches 26, of which 24 ports support 10/100 Mbps self-adaptation and 2 ports support gigabit connections. The switch also provides two CBIC expansion slots, it supports various module connections and provides great help for network expansion. FSM726 can be stacked, and the average failure-free time has reached 6.5 years. This reduces the user's maintenance of this switch and ensures the long-term stability of the network.
FSM726 is a network-managed switch that provides two management methods: WEB browser management and command line interface management. It manages SNMP, VLAN, QoS, Port Trunking, broadcast storm control, and Port Mirroring through these two management methods, which greatly improves the utilization of network resources. Because the vswitch supports remote control, it also provides protocol authentication. Users can connect to FSM726 only after entering the user name and password.
Comment: FSM726 has powerful management functions and good performance. It has two Gigabit ports and can be connected to a gigabit network. It is suitable for the core of a small network and the convergence of large networks, you can also connect to a high-speed server or a high-speed workstation.
Youxun network DES-3226Reference price: 7000 RMB)
DES-3226 is a gigabit smart switch with 8 Gbps of board bandwidth and 6 Mbps packet forwarding rate, 24 10/100 Mbps adaptive ports, 1 scalable slot to connect to the Gigabit module provided by youxun, connects to a gigabit network.
The switch supports Telnet remote configuration through network management software, and supports SNMP management and RMON management, through which administrators make DES-3226 more available in the network. The DES-3226 can control the traffic of each port to provide reasonable network bandwidth for users in the network. The Port Mirroring function helps administrators understand internal network usage. The vswitch supports VLAN to expand network construction. DES-3226 supports IP multicast and Qos mechanisms, which can effectively prevent jitters and latencies when applied in video conferencing and IP calls. The DES-3226 supports firmware upgrades through TFTP and redundant power supply.
Comments: DES-3226 with FSM726 the same, network management performance are more powerful, the overall performance is also better, the price is basically the same, and support a variety of functions, more suitable for large and medium network convergence, core use of small networks. (End)
