This is most like a faulty optic
Alert for device asw2-c-eqiad.mgmt.eqiad.wmnet - Inbound interface errors
Severity: warning
Timestamp: 2019-09-12 16:46:29
Unique-ID: 120101
Rule: Inbound interface errors
Faults:
#1: xe-2/0/45 - Core: cr1-eqiad:xe-3/1/2 {#2808} [10Gbps DF]
#2: ae1 - cr1-eqiad:ae3Mentioned in SAL (#wikimedia-operations) [2019-09-18T22:13:38Z] <cmjohnson1> disabling asw2-c-eqiad xe-2/0/45 - cr1-eqiad to replace optic T233265
swapped both optics on cr1-eqiad and asw2-c xe-2/045. Giving it 24 hours to see if any errors return
It's been nearly 24 hours and there are 0 errors. resolving the task
cmjohnson@asw2-c-eqiad> show interfaces xe-2/0/45 extensive | match error
Link-level type: Ethernet, MTU: 9192, MRU: 0, Speed: 10Gbps, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Input errors: Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Bucket drops: 0, Policed discards: 0, L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, FIFO errors: 0, Resource errors: 0 Output errors: Carrier transitions: 0, Errors: 0, Drops: 1743662, Collisions: 0, Aged packets: 0, FIFO errors: 0, HS link CRC errors: 0, MTU errors: 0, Resource errors: 0, CRC/Align errors 0 0 FIFO errors 0 0 Output packet error count 0
{master:2}
cmjohnson@asw2-c-eqiad> show interfaces ae1 extensive | match error
Link-level type: Ethernet, MTU: 9192, Speed: 40Gbps, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Input errors: Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0, Bucket drops: 0, Policed discards: 0, Resource errors: 0 Output errors: Carrier transitions: 0, Errors: 0, Drops: 20494489, MTU errors: 0, Resource errors: 0, Bucket drops: 0