Network Equipment
One of the most important elements of the infrastructure is the network equipment that was configured and installed in the RACKs of the infrastructure. The equipment interconnects all nodes of the infrastructure with optical fibers and Ethernet interfaces with speeds of 40Gbit and 10Gbit. The goal is for the infrastructure to seamlessly and seamlessly support hundreds of thousands of parallel connections as required by cloud computing infrastructure. Active network equipment consists of powerful processors and a large amount of RAM. The operating system of the switches and routers is upgradable and provides security, upgrade and remote monitoring specifications.
The switches
The switches are Dell EMC S5224F-ON Switch, 24x 25GbE SFP28, 4x 100GbE QSFP28 ports, PSU to IO air, 2x PSU, 1U as shown functionally in figure 3. The switches have been installed in the scaffolds with the nodes so that there is qualitative utilization of the optical fiber interfaces in the connections between them. Appropriate adapter transceivers are provided to connect to each node's management port with 1GbE RJ45 copper cable. In order to achieve communications with the University's central network infrastructures, at least 4 (≥ 4) appropriate transceiver adapters for connection with SFP+ LC-LC Multimode optical cables are included per switch. The configuration and upgrade (firmware) of the switches can be performed by the central management software of the HCI solution. There are 48 25GbE ports available and supported by SFP28/SFP+ transceivers, while there are a total of 4 40/100GbE ports and supported by corresponding QSFP28/QSFP+ transceivers.
The network routers are Mikrotik CRS326-24G-2S+ and CCR1036-12G-4S. CCR is a powerful router with 36 processors and the ability to process millions of packets per second. The infrastructure supports secure L2TP Virtual Private Network (VPN)
