ifd ren2: Input CRC errors: 45 in last 5 minutes : Backplane signal integrity issues due to overheating or dust.
RE 1: ren2 link state: Operational, but protocol negotiation failed : Different Junos versions between RE0 and RE1. The REN 2 protocol changed between 17.x and 21.x. juniper ren 2 link
set chassis redundancy graceful-switchover set chassis redundancy routing-engine 0 master set chassis redundancy routing-engine 1 backup commit The system sends keepalives every 1 second by default. In congested backplane scenarios, you can adjust: ifd ren2: Input CRC errors: 45 in last
: Juniper REN 2 link, REN link status, Junos HA, GRES configuration, backplane synchronization, MX series routing engine redundancy. Have a REN 2 link war story or a unique error code? Share your experience in the comments below – troubleshooting internal links is a team sport. Share your experience in the comments below –