Effective Routing Technique: Augmenting Data Center Switch Fabric Performance

IEEE Access

Eid Rehman¹  Muhammad Kashif Khattak¹  Muhammad Faran Majeed²  Yazhe Tang²  Hamza Fahim³ 

[1] School of Computer Science and Technology, Xi&x2019;an Jiaotong University, Xi&x2019;an, China;

关键词: Data center networks;    TCAM tables;    top of the rack switches;    link oversubscription;    TCP incast and outcast;    loops;   

DOI  :  10.1109/ACCESS.2020.2973932

来源: DOAJ

【 摘 要 】

Today, data center networks (DCNs) are built using multi-tier architecture. These large-scale networks face many challenges, such as security, delay, low throughput, loops, link oversubscription, TCP Incast and Outcast, etc. In this paper, a TCAM (Ternary Content Addressable Memory) based routing technique is proposed, augmenting the routing capabilities of multi-tier architectures in large scale networks. The routing complexities in these architectures are rectified and improved by implementing an additional TCAM based routing table in Leaf/ToR switches for a specific number of compute nodes in particular Pods, and it is scalable to whole datacenter nodes. To test the model, we implemented two prototype models: one depicting our proposed TCAM based switch and the other is a typical Top-of-the-Rack (ToR) switch and compared the performance of the proposed model and if any overhead introduced in it. The preliminary results show that our TCAM based routing table technique is fast and it forwards the network packets at line-rate, does not introduce considerable latency, on-chip resources power consumptions is less than 3%, and helps to solve or mitigate the above critical problems that are present in the current large DC's three-tier architecture, especially in Top of the Rack and aggregation layers switches.

【 授权许可】

Unknown