SRX 5800 cluster, slow speed due asymmetric traffic
We have 2 configured SRX5800 in cluster and 2 MX960, each MX has 2 uplinks. All are symmetric, without prepends, local prefference.
South side is without RETH interfaces, redandancy relies on OSPFv3.
North side has 2 redanduncy groups, acitve one on SRX-1. Load balancing is disabled.
So it means outgoing traffic always choose one interface, in our case it's ae1. When incoming traffic comes via ae3 we experience slow speed for TCP connections ~ 100Kb/s or even less for both ipv4 and ipv6 traffic.
ae3 interface is fine, if we make it preferable for outgoing traffic we get issues with slow speed on other interface.
Now to avoid slow speed I put metric on interface in OSPF. Can anyone advise where to look to identify an issue?