Networking Calculators
20 free networking calculators in Linux.
- ARP Cache CalculatorCalculate ARP cache size and expiration behavior based on neighbor table thresholds.
- Bandwidth Utilization CalculatorCalculate network bandwidth utilization percentage against interface link capacity.
- Bonding Capacity CalculatorCalculate aggregate bandwidth capacity of a bonded network interface across multiple NICs.
- Bridge Interface CalculatorCalculate throughput and MAC table capacity for a Linux bridge interface.
- Connection Tracking CalculatorCalculate conntrack table size needed for a firewall or NAT gateway's connection load.
- DNS Cache Size CalculatorCalculate DNS resolver cache size needed to serve a given query rate and TTL distribution.
- Hostname Resolution TimeEstimate hostname resolution latency across DNS, /etc/hosts and cache lookup layers.
- Interface Queue CalculatorCalculate network interface queue length needed to avoid packet drops under burst load.
- MSS CalculatorCalculate maximum segment size from MTU by subtracting TCP/IP header overhead.
- MTU CalculatorCalculate maximum transmission unit and payload size after protocol header overhead.
- Network Buffer Size CalculatorCalculate optimal socket send/receive buffer sizes based on bandwidth and latency.
- NIC Throughput CalculatorCalculate achievable throughput of a network interface card given link speed and overhead.
- Packet Rate CalculatorCalculate packets-per-second rate and its CPU load impact on network interrupt handling.
- Routing Table Size CalculatorCalculate routing table memory footprint from route count and kernel FIB entry size.
- Socket Buffer CalculatorCalculate total kernel memory consumed by socket send and receive buffers system-wide.
- Socket Count CalculatorCalculate maximum concurrent socket connections supportable by system file descriptor limits.
- TCP Connection CalculatorCalculate maximum concurrent TCP connections a server can handle given port and memory limits.
- TCP Window Size CalculatorCalculate optimal TCP window size from bandwidth-delay product for maximum throughput.
- UDP Port CalculatorCalculate available UDP port range and usable ports after reserved and ephemeral ranges.
- VLAN Interface CalculatorCalculate available VLAN IDs and subinterface count for 802.1Q tagged networking.