Extreme Networks Summit X250e-24P

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This switch has the ability to handle voice traffic for telecom service providers and data centers. It has 24 10/100 ports, and two shared Gigabit Ethernet ports. The X250e series switches are stackable and so there are two stacking interfaces provided at the back.

The switch provides high availability and performance with its advanced traffic management features like modular operating system and redundant power supply. ExtremeXOS, the modular operating system that it comes bundled with, monitors each independent OS process and in case any of them halts, it automatically restarts the process resulting in continuous network uptime. It also has support for EAPS (Ethernet Automatic Protection Switching) that allows the network to recover from failovers within a fraction of a second. This ensures that VoIP calls or digital video feeds transmitted do not drop or freeze due to link fail-over on the network.

Price: Rs 76,000 (1 yr warranty)
Meant For
:Telecom providers, Data Centers
Key Specs:
Modular OS, port mirroring, PoE, EAPS, VLAN, MAC address filtering
Good performance, detailed Web based management interface
Cons: None
Contact: Avaya GlobalConnect, Gurgaon
Tel: 9818672278 Email: kl.narayanan@avaya
SMS Buy 131186 to 56767

The Summit 250e-24P supports Power over Ethernet and can be used by devices that require power from LAN connections, such as IP telephones. The switch also supports the standard Layer 2 and Layer 3 features such as Spanning Tree Protocol, Link Aggregation, DHCP and Quality of Service (QoS). Other two features, MAC filtering and port mirroring, make it a more secure device to connect your wares with. Especially MAC filtering, which allows a port to be dedicated to a given MAC address and locked for any new network device, thus preventing network attacks from frequently changing MAC addresses.

The switch doesn't get shipped with a default IP. That has to be configured through its Command Line Interface (CLI). Once the IP has been configured, the switch can be managed through CLI or a Web interface, called ExtremeXOS Screenplay. The latter interface is quite detailed and provides functionalities to configure VLANs, set policies for ports and monitor them, and view statistics related to network traffic.

We tested the switch using NetIQ Qcheck in an isolated network. It gave a throughput of 94.118 Mbps for transferring 1000 Kbytes of payload from one end to the other. And when we flooded the switch with excessive traffic over some ports and checked its throughput on other ports, it still managed a decent 94 Mbps. This means the switch is intelligent enough to isolate ports having excessive traffic, so that throughput over other ports is not hampered.

Along with Summit X250e-24P we also received another switch from the X250e series, the Summit X250e-48T. This switch has mostly similar features but twice the number of 10/100 ports, however, it does not support Power over Ethernet. The price is also same as that of X250e-24P and the performance is equally good.

Bottomline: Its performance and features make it ideal for networks where VoIP or high density data streaming are used.

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