[portable] - Sflow Capture Tool

EOF sudo systemctl restart hsflowd Popular open-source collectors:

configure terminal sflow collector <collector-ip> port 6343 sflow polling-interval 20 sflow sampling-rate 1000 interface ethernet 1/1 sflow enable sflow capture tool

| Tool | Description | |------|-------------| | | Turns sFlow into NetFlow | | pmacct | Lightweight, stores in SQL/Redis | | ElastiFlow | Integrates with Elasticsearch + Kibana | | sflowtool | Command-line decoder (debugging) | sFlow (Sampled Flow) is an industry-standard technology for

For further reading: sFlow.org – the official standard. sflow capture tool

1. What is sFlow? sFlow (Sampled Flow) is an industry-standard technology for monitoring network traffic. Unlike full packet capture tools (like tcpdump) or flow aggregation protocols (like NetFlow), sFlow uses statistical sampling to monitor all traffic at wire speed without impacting performance.

set protocols sflow collector <collector-ip> udp-port 6343 set protocols sflow sampling-rate 1000 set protocols sflow interfaces ge-0/0/0

# Install Host sFlow agent sudo apt install hsflowd # Debian/Ubuntu sudo yum install hsflowd # RHEL/CentOS sudo tee /etc/hsflowd.conf <<EOF sflow collector ip = 192.168.1.100 samplingRate = 1000 pollingInterval = 20