UCSM showing reason: ENM source pinning failed.

[Amit23]

hello,

i have UCSM 2.2.3g and B200M4 with UCS FI 6248.

i am getting ENM source pinning failed...

how can fix it..

please see attached screen shot for more details..

[Saurabh Kothari]

Amit,

one of the primary reason for ENM source pinning failure is - Mismatched or misconfigured VLANs between FI and upstream switch.

Considering a disjoint layer-2 set up.

vnic 1 is using a set VLANs (example 10,20)

vnic 2 is using a set of VLANs (example 30,40)

but you can't have a single vnic in VLAN 20,30 that's when you get this error!

though this is one of the scenarios.

please let us know if you have configured a disjoint L2 or have incorrectly set a VLAN as native?

Note: you have created duplicate discussions with the same subject line.

Regards,

Saurabh 

[Amit23]

DEar Saurabh,

as of now, i dont have any connection with my upling core switch 6506..

might be this can be cause of this error?

as of now i have connected UCS with FI and configured two vlans on UCSM mgmnt 320 and server 611..

on each service porfile have assigned two ports for mgnt towards FI-A adn FI-B and around 6-8 server vlan towards FI-A and FI-B.

i have portchannel with 4 cables connection between UCS and FI..

!

so what could be cause and how an fix it?

[Saurabh Kothari]

thanks Amit.

The most common reason this error occurs is when a VLAN assigned to a vNIC is not configured or available on one of the uplink interfaces. This prevents the UCS from pinning the vNIC traffic to an uplink, and therefore produces the error.

have you configured the vnics from a vnic template? make sure VLANs are assigned to respective vNIC.

have you configured failover vnics?

do you want to configure specific uplink ports for each VLAN?

so you don't have a disjoint L2 set up? correct

[Amit23]

Yes!

still i don't have connection with uplink core devices.

would be this error coming because of no uplink connection?

also i applied vNIC template to service profiles. i crated two management and 6 server uplink vlan on vNIC template.

[Walter Dey]

Yes, without connectivity to the datacenter (North bound), your vnics will fail !

[Amit23]

Thanks for your reply.

how can i assign vlans to uplink intrrfaces of FI?

do i need to assign vlan to downside server interfaces of FI?

[Walter Dey · Accepted solution]

Unless you configure disjoint vlans, all vlans defined on UCS FI are included automatically in the Northbound ethernet trunks; nothing special to do.

see also

http://ciscoquicklinks.com/Tip-datacenter-ucs-uplink-port-configuration-examples-lan

[Walter Dey]

Sorry, you don't have any North bound link from UCS FI ? if yes, this cannot work, specially if you use the default setup of Ethernet End Host Mode ?

Regarding the error; see eg

http://jeffsaidso.com/2013/04/enm-source-pinning-failed-a-lesson-in-disjoint-layer-

http://wahlnetwork.com/2014/09/23/enm-source-pinning-failed/

https://tools.cisco.com/quickview/bug/CSCua91415

[Amit23]

thanks for your reply..

can you confirm me that the error i am getting it is related to uplink connection to switch?

[Saurabh Kothari]

have you even configured the uplink interfaces on FIs?

from the screenshots you provided I see error code F0283

#1  F0283 - ENM source pinning failed

Please make sure the necessary VLANs that are allowed in vNICs are created in FI and and allowed in the uplinks.

#2 Link down errors

These are normal if the blades are not up and running with an OS ( with appropriate drivers ) .

[Amit23]

I have configured two uplink on fi but it is not up at core switch 6506 side due to sfp issue.

may i know the reason behind F0283 enm pinning failed error?

is it due to uplink not up at core switch side?

did any configuration issue at ucsm side?

[Saurabh Kothari · Accepted solution]

Yes, when the Uplinks are not operational you will get the ENM source pinning failure as the vnics will remain unpinned to fabric uplinks.

I believe as soon the FIs have connectivity with the uplink switch the errors will go.

no you need add VLANs to server port links.

if the VLANs are global VLANs then they will be accessible on all uplinks. if you want to configure separate VLANs on specific uplink ports then you will add the VLANs to Uplink port separately. that will be a disjoint layer 2 concept.

you just need to fix the SFP once the FI is talking to the switch the pinning will resume.

[Amit23]

Thanks for your support.

one more thing is that do i use vnic configuration manually under service profile or use from vnic policy for vnic configuration?

[Saurabh Kothari]

the vnics policy should be used when you want to configure multiple vnics on multiple SPs to save time.

that's what UCS provides you usage of pools to derive things easily.

thanks Amit.

have a great day ahead :)

Regards,

Saurabh