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Port-Channel issue between UCS FI and MDS 9222i switch

Hi

I have a problem between UCS FI and MDS switch port-channel. When MDS-A is powered down the port-channel fails but UCS blade vHBA does not detect the failure of the port-chanel on UCS-FI and leaves the vHBA online. However, if there is no port-channel between FI-->MDS it works fine.

UCS version   

System version: 2.0(2q)

FI - Cisco UCS 6248 Series Fabric Interconnect ("O2 32X10GE/Modular Universal Platform Supervisor")

Software

  BIOS:      version 3.5.0

  loader:    version N/A

  kickstart: version 5.0(3)N2(2.02q)

  system:    version 5.0(3)N2(2.02q)

  power-seq: Module 1: version v1.0

             Module 3: version v2.0

  uC:        version v1.2.0.1

  SFP uC:    Module 1: v1.0.0.0

MDS 9222i

Software

  BIOS:      version 1.0.19

  loader:    version N/A

  kickstart: version 5.0(8)

  system:    version 5.0(8)

Here is the config from MDS switch

-------------------------------------------------------------------------------

Interface  Vsan   Admin  Admin   Status          SFP    Oper  Oper   Port

                  Mode   Trunk                          Mode  Speed  Channel

                         Mode                                 (Gbps)

-------------------------------------------------------------------------------

fc1/1      103    auto   on      trunking         swl    TF      4    10

fc1/2      103    auto   on      trunking         swl    TF      4    10

fc1/9      103    auto   on      trunking         swl    TF      4    10

fc1/10     103    auto   on      trunking         swl    TF      4    10

This is from FI.

-------------------------------------------------------------------------------

Interface  Vsan   Admin  Admin   Status          SFP    Oper  Oper   Port

                  Mode   Trunk                          Mode  Speed  Channel

                         Mode                                 (Gbps)

-------------------------------------------------------------------------------

fc1/29     103    NP     on      trunking         swl    TNP     4    103

fc1/30     103    NP     on      trunking         swl    TNP     4    103

fc1/31     103    NP     on      trunking         swl    TNP     4    103

fc1/32     103    NP     on      trunking         swl    TNP     4    103

Any thoughts on this?

Everyone's tags (3)
1 REPLY
Cisco Employee

Port-Channel issue between UCS FI and MDS 9222i switch

Sultan,

This is a recently found issue and is fixed in UCSM 2.0.3a version .

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCua88227

which got duped to  CSCtz21585

It happens only when following conditions are met

FI in End host mode

FC uplinks are configured for portchannel + trunking

Certain link event failures ( such abrupt power loss by upstream MDS switch )

Padma

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