My understanding is that the default settings apply the dual next hop per prefix and then use a hash to keep the same 5 tupple traffic using a consistent next hop.
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Steve Puluka BSEET - Juniper Ambassador
IP Architect - DQE Communications Pittsburgh, PA (Metro Ethernet & ISP - Retired)
http://puluka.com/home------------------------------
Original Message:
Sent: 08-11-2023 00:09
From: TAMAS VARGA
Subject: Juniper MX default BGP load sharing
I have an MX router with BGP peers and enabled load sharing simply with the "multipath" setting, no additional configuration.
I saw multiple options, but could you explain how the load sharing will behave by default?
As I understood this is ECMP and the default hashing algorithm is enhanced-hash-key. So basically the source IP + port and the destination IP + port is used to differentiate flows.
I read about multiple ways for load balancing but I think in my case, without further configurations the per-prefix load balancing will be used.
Do I undestand the documentation right, or I am completely off track?
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TAMAS VARGA
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