UCSM 2.2(3g) not creating Server upling pot channel for FI-A

[Amit23]

hello,

we have UCSM 2.2(3g) and FI-6248 A and B.

we have 4 link port-channel discovery policies for UCS chassis discovery on UCSM.

when reviewing the internal LAN configuration, i can see FI-A have four ports out of port channel and FI-B have ports under port-channel that is auto creating.

what could be issue and how can wokr on it to fix it and see FI-A and B ports under port channel?

see below current attached status of server ports with UCS chassis:

[Kirk J]

If I understand your question correctly, you are wanting to have both ports from A and B under the same port channel?

The overall design of the UCSM is to have a separate path A and path B that are independent of each other.  In the end host mode (which is default) devices pinned/connected to one FI need to switch via a northbound switch in order to connect back down to the other FI.

In this scenario you can not have a single port channel that involves two IOMs and two FIs.  From a dataplane perspective, the IOMs and FIs are separate devices.

You can create north bound port channels from the FIs who's member ports go to a pair of N5K/N7K switches running VPC.

There are other methods two maximize throughput out both A and B sides from a given host such as using network teaming for ethernet, and multipathing for storage.

Hope this answers your question.

Thanks,

Kirk...

[Amit23]

hello Kirk! thanks for your reply. my question is that i have connect FEX with each 4 uplink to FI-A and FI-B seperately. now i can see only port channel for FI-B and it consider 4 interface only.

LAN section

internal lan

FI-B

port-channel

port channel 103>>>include 4 interface of server port

!

when i check FI-A, it is showing no pot channel and all four ports under internal LAN FI-A. !

LAN section

internal lan

FI-A>>>>>>.include 4 interface of server port

port-channel section

no port-channel details

!

Why FI-A port channel not configuring as FI-B port channel is configured by auto discover policies?

i have also configured policies discovery option with 4 link and port-channel option. see more about issue in attached image.

please tell me what is going wrong so that correct it..

!

[Walter Dey · Accepted solution]

Sorry, but it might be a confusion !

Are you talking about a pc between the chassis IOM and FI, or a pc between FI and a Northbound switch ?

For pc between IOM and FI you need second generation equipment, 2204/2208 and 6248/6296 !

[Amit23]

thanks

[Walter Dey]

Hi Kim

Which model of IOM do you have in the chassis ?

can you please post screenshot of both IOM network links ? are they really up ? and do you see the pc there or not.

Try to do a chassis ack !

Walter.

[Amit23]

working now

[Kirk J]

In equipment view, click on chassis in question.  The general tab in the right pane, will have an option for 'acknowledge Chassis'.

Later versions of the UCSM you can individually acknowledge individual IOMs instead of the whole chassis if so desired.

Thanks,

Kirk...

[Walter Dey · Accepted solution]

Hey Kim

I see that your IOM is a 2104 which doesn't support port-channel

see attachment

Walter.

[Amit23]

thanks

[Walter Dey]

Kim

Please share correct information (screen shots) !

- FI model

- iom model

- IOM Network ports

I am fairly convinced that this is a trivial problem.

Walter.

[Amit23]

it is working

[Amit23]

see more details in attached document..

nothing changed after chassis Ack...

[Kirk J]

You also want to confirm you don't have mismatched IOM models on the same chassis, unless you are in the process of upgrading the IOMs.

You will want to have the same model # of the IOMs.

Thanks,

Kirk..

[Amit23]

thanks fro your all support.

issue is resolved now..after Acknowledged the chassis..