Judul: Perbandingan Kinerja Eap-Tls, Eap-Ttls Dan Eap-Peap Sebagai Protokol Autentikasi Pada Jaringan Nirkabel
Abstrak: Security is one of the most important issue in wireless networks (IEEE 802.11) and WPA (Wi-Fi) Protected Access) is the current standard security protocol. WPA security process is divided into two sections, authentication and encryption. The authentication process is crucial because it is the first process executed before user can access the networks. Therefore, it must not only safe, the authentication process must also be done quickly. WPA has two modes of authentication namely Personal (Pre-Shared Key) and Enterprise (802.1x). EAP (Extensible Authentication Protocol) is a standard authentication protocol that is used in WPA Enterprise. EAP-TLS (EAP-Transport Layer Security), EAP-TTLS (EAP-Tunneled TLS) and EAP-PEAP (Protected EAP) are the three most widely used EAP methods today and has been certified by the Wi-Fi Alliance. All three EAP methods are equally implement TLS protocol for securing data during the authentication process. This study will compare the performance of the three EAP methods with the three criteria for comparison of speed/ time, the amount of packet size, and number of steps required during the authentication process. The results show that EAP-TTLS has better performance than those of EAP-PEAP and EAP-TLS.
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Judul: Kinerja Protokol Routing dalam Komunikasi Real-time pada Jaringan Berkabel
Abstrak: To reach its destination, different routing protocols are used by routers to determine the path for real time data (voice and video) communications. Each protocol has its own method of doing the routing. This research evaluates the performance of three routing protocols, namely RIPv2, EIGRP, and OSPF, based on two parameters: packet loss and router re-convergence time. Test was conducted by using actual devices, i.e., one CISCO 1841 router and eight CISCO 2620XM routers with a small topology. Video file that is used has a duration of 119.25 seconds with video format MPEG-4 and total bit-rate 87.6 Kbps. To obtain the value of packet loss and router re-convergence time, when the stream running about 1 minute, the network will be impaired by turning off one of the router. The analysis was done by looking at the number of packets captured by sniffer and the log of the router. The result shows that protocol EIGRP has the best performance compared with RIPv2 and OSPF with average time 0.148 second to re-convergence and 40 loss packets.
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Judul: Case Study of Gallbladder Mucocele and Treatment Used In Small Animals
Abstrak: Gallbladder mucocele (GM) is defined as distention of the gallbladder caused by an inappropriate accumulation or deposition of high concentrations of bile. The purpose of this case study is to study GM conditions in small animals and to report the clinical sign and characteristics of GM through the sonogram interpretation and blood chemistry test evaluation, and studies related to the therapy given and other treatments recommended. A 14-year-old Toy Poodle dog has been diagnosed with severe GM and cholecystitis. No pain signs were shown during the physical examination as asymptomatic is a common characteristic in the early stage of biliary related diseases. In this study Abdominal ultrasonography interpretation and blood chemistry evaluation was conducted in 2021-2022 and analyzed as a secondary data source. Ultrasonography results showed presence of hyperechoic, immobile deposits in gallbladder accompanied by wall thickening and enlarged in size, followed by a significant increase in the enzyme alkaline phosphatase (ALP). This study has summarized mainly the diagnosis and treatments of GM in small animals and suitable alternatives treatments were recommended to encounter the GM conditions in small animals. The effectiveness of combined therapy shows the positive impact on the patient, the condition of GM has been under control.
Keyword: ultrasound, gallbladder, biliary sludge, abdominal ultrasonography