On 2/11/24 12:10, james list via juniper-nsp wrote:
Dear experts we have a couple of BGP peers over a 100 Gbs interconnection between Juniper (MX10003) and Cisco (Nexus N9K-C9364C) in two different datacenters like this: DC1 MX1 -- bgp -- NEXUS1 MX2 -- bgp -- NEXUS2 DC2 MX3 -- bgp -- NEXUS3 MX4 -- bgp -- NEXUS4 The issue we see is that sporadically (ie every 1 to 3 days) we notice BGP flaps only in DC1 on both interconnections (not at the same time), there is still no traffic since once noticed the flaps we have blocked deploy on production. We've already changed SPF (we moved the ones from DC2 to DC1 and viceversa) and cables on both the interconnetion at DC1 without any solution. SFP we use in both DCs: Juniper - QSFP-100G-SR4-T2 Cisco - QSFP-100G-SR4 over MPO cable OM4. Distance is DC1 70 mt and DC2 80 mt, hence is less where we see the issue. Any idea or suggestion what to check or to do ?
You don't say if these are eBGP or iBGP sessions. But assuming the latter, do the logs show a corresponding IGP outage?
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