Resolution of Ethernet switch Problems

Ethernet technology has entered the 10G era. Ethernet is no longer just a LAN technology, but a Layer 2 bearer technology from desktop to core, from enterprises to telecom operators, from LAN to Internet backbone.

As a result, the 10-ge Ethernet switch, as the core of the network, is facing unprecedented challenges. In the past, all the Internet routes, ACLs, sFlow, IPv6 routes, QoS, policy routes, and multicast routes that require routers to handle were all handled by Ethernet switches. Whether or not the above services can be processed at the same time becomes a key consideration for selecting the core 10-ge Ethernet switch of the network.

Today, the core Ethernet switch has reached the ultra-high capacity of many or too many bits. In the past, 4 ~ Capacity of six small-capacity switches that can be achieved by clusters. Today, we can use a large-capacity switch with many or too many bits to achieve higher reliability.

At the same time, the network structure is simplified, the bottleneck of Interconnect links is eliminated, and maintenance costs are reduced. Full network management has always been a long-term goal of companies of all sizes. Full Control of transmission traffic, bandwidth requirements, performance, security threats, and billing allocation are a small part of the challenges facing network administrators.

SFlow is based on the latest standard network export protocol. It can solve many problems faced by network administrators. By embedding sFlow technology into network routers and switch ASIC chips, sFlow is a technology that keeps running online at a high speed.

Compared with traditional network monitoring solutions that use Image Port, probe, and bypass monitoring technology, sFlow proxy is embedded in network routers and switch ASIC, users can fully monitor the entire network without buying additional probes and bypasses. The implementation cost of this solution is lower, and the processing performance is also doubled.

Compared with RMON, RMON Ⅱ, and NetFlow network monitoring technologies, sFlow has the following advantages: it has lower full-network monitoring costs, can perform real-time analysis, and can be embedded into ASIC, the full network view of the device or port configuration does not affect the performance of the device, and the network bandwidth usage is small. You can configure the configuration on your own.

NAS Systems Based on 10-Gigabit Ethernet are becoming more and more popular. A 10-Gigabit switch serving 10-Gigabit NAS must have superior backplane technology and efficient packet processing technology. The next generation 10-ge switch uses CLOS multi-level switching matrix to greatly improve the system bandwidth and backplane self-healing functions.

The fixed-length message metadata exchange in the vswitch ensures consistent transmission latency for different data packet lengths and different types of data exchanges. With the popularization of 10G Ethernet technology, the use of iSCSI technology to achieve access to enterprise IP Storage will gradually increase.

One of the major features of iSCSI is the economy. It uses the existing 10G Ethernet infrastructure network to achieve access to IP address storage. Both the nas system and the iSCSI system require the system to have line-rate data forwarding capabilities, and can accommodate burst massive instantaneous data.

This requires the core 10-ge switch to be able to process large volumes of burst data. The new-generation Service Quality Assurance Technology works with the large cache system of the 10-Gigabit switch to ensure that the data transmission of the 10-Gigabit IP address storage will not result in performance degradation due to large-capacity, large-area burst data.

When purchasing 10-Gigabit Ethernet switches for high-density and high-bandwidth users, pay attention to the following points: first, consider using a vswitch with ultra-high capacity. The vswitch supports high-density 10-Gigabit Ethernet modules and Gbps Ethernet interfaces, the slot must support 100GbE full-duplex bandwidth.

To meet the bandwidth needs of 100,000 m network backbone interconnection between core switches in the future. Second, the switch must support distributed, full-line speed, and non-blocking data forwarding. Third, the switch must implement sFlow technology based on ASIC chip, providing 2 ~ Layer-7 traffic visibility enables scalable network monitoring, accounting and billing, and security analysis, A vswitch must be able to process Internet, IPv6, sFlow, QoS, and other services at the same time as a high-end router.

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