LDP flaps specifically present on ACX Juniper routers (ACX4000 and ACX1100)
Hi All, We are experiencing an issue with ACX routers running on 12.3X54-D20.7 where the LDP sessions are continuously flapping, the logs indicate the following; Apr 21 03:36:31 hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: hold time expired Apr 21 03:36:34 hostname rpd[2299]: RPD_LDP_NBRDOWN: LDP neighbor x.x.x.x (lo0.0) is down Apr 21 03:36:38 hostname rpd[2299]: RPD_LDP_NBRDOWN: LDP neighbor x.x.x.x (lo0.0) is down Apr 21 03:36:38 hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: all adjacencies down Apr 21 03:55:34 hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: received notification from peer Apr 21 03:55:34 hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: received notification from peer Apr 21 03:55:35 hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: received notification from peer Apr 21 03:55:35 hostname rpd[2299]: RPD_LDP_SESSIONDOWN: LDP session x.x.x.x is down, reason: received notification from peer Actions taken from our team was; - Increase the hold time setting on the ldp enabled interfaces. - Increase the time interval on the same ldp enabled interfaces. - setting the ldp session protection setting on the ldp enabled loopback interface. Unfortunately the actions did not yield much since the flaps have been ongoing. Anyone have any Idea on what the problem / solution might be? -- Blessings, Joel Ahumuza SkypeID - jl.hmz + 256-75-1040411 | + 256-78-2040411
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joel ahumuza