ucarp + udp loadbalancer XDP sbulb

ucarp + udp loadbalancer XDP sbulb

			VIP 192.168.10.100

192.168.10.101					192.168.10.102

Ucarp + sbulb					Ucarp + sbulb						

Syslog 							Syslog 



Ucarp
-----

A machine with a real IP of 192.168.10.101 is the preferred  master  for  a  virtual  IP  of
192.168.10.100, broadcasts are sent every 2 seconds.

           ucarp -b 2 -s 192.168.10.101 -v 11 -p badpass -a 192.168.10.100 \
           -u /etc/vip-up.sh -d /etc/vip-down.sh -z

The  hot  standby with an IP of 192.168.10.102 uses the following command, (note the advskew
f 50 putting it at a disadvantage and making the first machine preferred).

           ucarp -b 2 -k 50 -s 192.168.10.102 -v 11 -p badpass -a 192.168.10.100 \
           -u /etc/vip-up.sh -d /etc/vip-down.sh -z
		   
		   
sbulb
------
bcc installed. (currently tested with v0.8 : package python3-bpfcc on debian)
linux-headers installed to allow bcc to compile bpf code.

sudo python3 -m sbulb eth0 -vs 192.168.10.100 -rs 192.168.10.101 192.168.10.102 -p 514


systemd
-------

[Unit]
Description=UDP Load Balancer
Wants=network-online.target
[Service]
Type=notify
NotifyAccess=all
Environment=PYTHONUNBUFFERED=1
ExecStart=/usr/bin/python3 -m slulb args...
[Install]
WantedBy=multi-user.target