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Actually the results from my testing are better than expected.
Using only the up-down-scripts from VRRP to set the IP-address of an hardware-offloaded (vlan-)interface, then push some gratuitous-arp packets with the traffic-generator tool.
Downtime <~ 1Sec. ... Not Datacenter-like but better than pre-version3-VRRP.
You have to handcarve the gratuitous arp-packets with a hex-editor ( note: colasoft p-builder isn't working incomp. pcap-format **)
Master/Backup script shouldn't use static interface-numbers ...
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example-packet and visual:
https://my.hidrive.com/share/rn-m0ysaz9
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vrrp on master:
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/ip address set interface=71-e2-vlan100 address=172.16.30.10/24 numbers=3
/tool traffic-generator inject-pcap pcap-file=gr-arp-e2-v100.pcap once interface=71-e2-vlan100
/tool traffic-generator inject-pcap pcap-file=gr-arp-e2-v100.pcap once interface=71-e2-vlan100
/tool traffic-generator inject-pcap pcap-file=gr-arp-e2-v100.pcap once interface=71-e2-vlan100
/tool traffic-generator inject-pcap pcap-file=gr-arp-e2-v100.pcap once interface=71-e2-vlan100
/tool traffic-generator inject-pcap pcap-file=gr-arp-e2-v100.pcap once interface=71-e2-vlan100
/tool traffic-generator inject-pcap pcap-file=gr-arp-e2-v100.pcap once interface=71-e2-vlan100
/tool traffic-generator inject-pcap pcap-file=gr-arp-e2-v100.pcap once interface=71-e2-vlan100
/tool traffic-generator inject-pcap pcap-file=gr-arp-e2-v100.pcap once interface=71-e2-vlan100
/tool traffic-generator inject-pcap pcap-file=gr-arp-e2-v100.pcap once interface=71-e2-vlan100
/tool traffic-generator inject-pcap pcap-file=gr-arp-e2-v100.pcap once interface=71-e2-vlan100
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vrrp on backup
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ip address set interface=71-e2-vlan100 address=172.16.30.9/24 numbers=3
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http://packeth.sourceforge.net/packeth/Home.html is a compatible editor - a packet build with this tool is accepted from /tool traffic-generator inject-pcap
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