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wanatkinson
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11 Posts
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1988
September 18th, 2021 03:00
S5000 SFP with SMF - protocol down
Hi,
Switch: Dell S5224-ON
Environment: Data Centre
Fibre: multiple 1Gb SMF links (1 metro connect; 2x Internet breakout)
Unable to get links working - auto negotiation is being used by the provider.
A DC tech came round with their tester and verified the signal from the DC. They then connected to the switch SFP module and there was no signal when using the recommended "negotiation auto" setting. When I turned "negotiation off" there was signal but we couldn't pass traffic (couldn't ping IPs on the same subnet and couldn't see any arp entries). You can see the output below
MANRPMI-SW-A(conf-if-eth1/1/2:1)# negotiation auto
MANRPMI-SW-A(conf-if-eth1/1/2:1)# <165>1 2021-09-17T23:21:46.550668+00:00 MANRPMI-SW-A dn_ifm 955 - - Node.1-Unit.1:PRI [event], Dell EMC (OS10) %IFM_OSTATE_DN: Interface operational state is down :ethernet1/1/2:1
MANRPMI-SW-A(conf-if-eth1/1/2:1)# <165>1 2021-09-17T23:21:46.550668+00:00 MANRPMI-SW-A dn_ifm 955 - - Node.1-Unit.1:PRI [event], Dell EMC (OS10) %IFM_OSTATE_DN: Interface operational state is down :ethernet1/1/2:1
!
MANRPMI-SW-A# show interface ethernet 1/1/2:1
Ethernet 1/1/2:1 is up, line protocol is down
Description: Equinix Internet Feed
Hardware is Eth, address is 8c:47:be:c1:00:c3
Current address is 8c:47:be:c1:00:c3
Pluggable media present, SFP type is SFP 1GBASE-LX
Wavelength is 1310
Receive power reading is -5.991168 dBm
When I turn auto-neg off
MANRPMI-SW-A(config)# interface e1/1/2:1
MANRPMI-SW-A(conf-if-eth1/1/2:1)# negotiation off
MANRPMI-SW-A(conf-if-eth1/1/2:1)# <165>1 2021-09-17T23:24:27.854285+00:00 MANRPMI-SW-A dn_ifm 955 - - Node.1-Unit.1:PRI [event], Dell EMC (OS10) %IFM_OSTATE_UP: Interface operational state is up :ethernet1/1/2:1
!
MANRPMI-SW-A(conf-if-eth1/1/2:1)# show interface ethernet 1/1/2:1
Ethernet 1/1/2:1 is up, line protocol is up
Description: Equinix Internet Feed
Hardware is Eth, address is 8c:47:be:c1:00:c3
Current address is 8c:47:be:c1:00:c3
Pluggable media present, SFP type is SFP 1GBASE-LX
Wavelength is 1310
Receive power reading is -5.989443 dBm
!
Line Speed 1000M, Auto-Negotiation off
But we can't pass traffic.
Config
interface ethernet1/1/2:1
description "Equinix Internet Feed"
no shutdown
switchport access vlan 82
negotiation off
flowcontrol receive off
I have checked the port-group and the ports are in a 10Gb port group.
What could be causing this failure on multiple links? I have given this info to the DC NOC but haven't had a response yet. They just said to use auto-neg. Is there a secret Dell setting I'm missing? SFPs are sourced from Dell.
