Open a JTAC case,
That looks like a work for them
Kind Regards,
Dominik
W dniu śr., 17.04.2024 o 21:36 Aaron Gould <aar...@gvtc.com> napisał(a):
> We recently added MPC10E-15C-MRATE cards to our MX960's to upgrade our core
> to 400g. During initial testing of the 400g interface (400GBASE-FR4), I see
> constant FEC errors. FEC is new to me. Anyone know why this is occurring?
> Shown below, is an interface with no traffic, but seeing constant FEC errors.
> This is (2) MX960's cabled directly, no dwdm or anything between them...
> just a fiber patch cable.
>
>
>
> {master}
> me@mx960> clear interfaces statistics et-7/1/4
>
> {master}
> me@mx960> show interfaces et-7/1/4 | grep rror | refresh 2
> ---(refreshed at 2024-04-17 14:18:53 CDT)---
> Link-level type: Ethernet, MTU: 1514, MRU: 1522, Speed: 400Gbps, BPDU
> Error: None, Loop Detect PDU Error: None, Loopback: Disabled, Source
> filtering: Disabled,
> Bit errors 0
> Errored blocks 0
> Ethernet FEC statistics Errors
> FEC Corrected Errors 0
> FEC Uncorrected Errors 0
> FEC Corrected Errors Rate 0
> FEC Uncorrected Errors Rate 0
> ---(refreshed at 2024-04-17 14:18:55 CDT)---
> Link-level type: Ethernet, MTU: 1514, MRU: 1522, Speed: 400Gbps, BPDU
> Error: None, Loop Detect PDU Error: None, Loopback: Disabled, Source
> filtering: Disabled,
> Bit errors 0
> Errored blocks 0
> Ethernet FEC statistics Errors
> FEC Corrected Errors 4302
> FEC Uncorrected Errors 0
> FEC Corrected Errors Rate 8
> FEC Uncorrected Errors Rate 0
> ---(refreshed at 2024-04-17 14:18:57 CDT)---
> Link-level type: Ethernet, MTU: 1514, MRU: 1522, Speed: 400Gbps, BPDU
> Error: None, Loop Detect PDU Error: None, Loopback: Disabled, Source
> filtering: Disabled,
> Bit errors 0
> Errored blocks 0
> Ethernet FEC statistics Errors
> FEC Corrected Errors 8796
> FEC Uncorrected Errors 0
> FEC Corrected Errors Rate 146
> FEC Uncorrected Errors Rate 0
> ---(refreshed at 2024-04-17 14:18:59 CDT)---
> Link-level type: Ethernet, MTU: 1514, MRU: 1522, Speed: 400Gbps, BPDU
> Error: None, Loop Detect PDU Error: None, Loopback: Disabled, Source
> filtering: Disabled,
> Bit errors 0
> Errored blocks 0
> Ethernet FEC statistics Errors
> FEC Corrected Errors 15582
> FEC Uncorrected Errors 0
> FEC Corrected Errors Rate 111
> FEC Uncorrected Errors Rate 0
> ---(refreshed at 2024-04-17 14:19:01 CDT)---
> Link-level type: Ethernet, MTU: 1514, MRU: 1522, Speed: 400Gbps, BPDU
> Error: None, Loop Detect PDU Error: None, Loopback: Disabled, Source
> filtering: Disabled,
> Bit errors 0
> Errored blocks 0
> Ethernet FEC statistics Errors
> FEC Corrected Errors 20342
> FEC Uncorrected Errors 0
> FEC Corrected Errors Rate 256
> FEC Uncorrected Errors Rate 0
>
> {master}
> me@mx960> show interfaces et-7/1/4 | grep "put rate"
> Input rate : 0 bps (0 pps)
> Output rate : 0 bps (0 pps)
>
> {master}
> me@mx960> show interfaces et-7/1/4
> Physical interface: et-7/1/4, Enabled, Physical link is Up
> Interface index: 226, SNMP ifIndex: 800
> Link-level type: Ethernet, MTU: 1514, MRU: 1522, Speed: 400Gbps, BPDU
> Error: None, Loop Detect PDU Error: None, Loopback: Disabled, Source
> filtering: Disabled,
> Flow control: Enabled
> Pad to minimum frame size: Disabled
> Device flags : Present Running
> Interface flags: SNMP-Traps Internal: 0x4000
> Link flags : None
> CoS queues : 8 supported, 8 maximum usable queues
> Schedulers : 0
> Last flapped : 2024-04-17 13:55:28 CDT (00:36:19 ago)
> Input rate : 0 bps (0 pps)
> Output rate : 0 bps (0 pps)
> Active alarms : None
> Active defects : None
> PCS statistics Seconds
> Bit errors 0
> Errored blocks 0
> Ethernet FEC Mode : FEC119
> Ethernet FEC statistics Errors
> FEC Corrected Errors 801787
> FEC Uncorrected Errors 0
> FEC Corrected Errors Rate 2054
> FEC Uncorrected Errors Rate 0
> Link Degrade :
> Link Monitoring : Disable
> Interface transmit statistics: Disabled
>
> Logical interface et-7/1/4.0 (Index 420) (SNMP ifIndex 815)
> Flags: Up SNMP-Traps 0x4004000 Encapsulation: ENET2
> Input packets : 1
> Output packets: 1
> Protocol inet, MTU: 1500
> Max nh cache: 75000, New hold nh limit: 75000, Curr nh cnt: 1, Curr new
> hold cnt: 0, NH drop cnt: 0
> Flags: Sendbcast-pkt-to-re
> Addresses, Flags: Is-Preferred Is-Primary
> Destination: 10.10.10.76/30, Local: 10.10.10.77, Broadcast:
> 10.10.10.79
>
>
> --
> -Aaron
>
>
