Хабр Курсы для всех
РЕКЛАМА
Практикум, Хекслет, SkyPro, авторские курсы — собрали всех и попросили скидки. Осталось выбрать!
load-balance per-packet
On routing platforms with the Internet Processor ASIC, when per-packet load balancing is configured, traffic between routers with multiple paths is spread using the hash algorithm across the available interfaces. The forwarding table balances the traffic headed to a destination, transmitting it in round-robin fashion among the multiple next hops (up to a maximum of eight equal-cost load-balanced paths). The traffic is load-balanced on a per-packet basis.
On routing platforms with the Internet Processor II ASIC, when per-packet load balancing is configured, traffic between routers with multiple paths is divided into individual traffic flows (up to a maximum of 16 equal-cost load-balanced paths). Packets for each individual flow are kept on a single interface.
...per default router would load balance per prefix. So if you have 10 prefixes learned over two equal-cost pathes then traffic destined to 5 out of 10 prefixes would be forwarded over one path and another 5 would go over other path.
Now if you define «per-packet» it will load-balance per flow. L4 information is taken in account in this case. The name «per-packet» is highly misleading but it has historical reasons. No reordering will ever take place!
Juniper MX80 + Cisco ASR1002 LACP Ether-channel