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Connectrix MDS : Port-channel between Cisco MDS and UCS not working

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Symptome

Port-channel creation.

An  fport-channel-trunk between an MDS and a UCS, or between a MDS NPIV core and a Cisco switch in NPV mode, does not come up, and reports the following errors in the logs - 
%PORT-5-IF_DOWN_OLS_RCVD: %$VSAN X%$ Interface fcx/y is down (OLS received) port-channel X <> 

Switch interfaces when added into port-channel, go into "notConnected" state and Port-channel status remains 'noOperMembers'.
The same interfaces without port-channel work fine.
From FI side on UCS, the ports go into "
error disabled" state.
 
`show interface brief`
-------------------------------------------------------------------------------
Interface  Vsan   Admin  Admin   Status       SFP    Oper  Oper   Port
                  Mode   Trunk                       Mode  Speed  Channel
                         Mode                              (Gbps)
-------------------------------------------------------------------------------
fc1/1      11     F      off     notConnected swl    --    --     --       
fc1/2      11     F      off     notConnected swl    --    --     201      
fc1/17     11     F      off     notConnected swl    --    --     --       
fc1/33     11     F      off     notConnected swl    --    --     --       

-------------------------------------------------------------------------------
Interface             Vsan  Admin  Status        Oper  Oper    IP
                            Trunk                Mode  Speed   Address
                            Mode                       (Gbps)
-------------------------------------------------------------------------------
port-channel201       11    off    noOperMembers  --           --


'show logging log'
Switchname %PORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: %$VSAN 11%$ Interface port-channel is down (No operational members)   
Switchname %PORT-5-IF_DOWN_OLS_RCVD: %$VSAN 11%$ Interface fc1/2 is down (OLS received) port-channel V18001FI48_1B-01_29 
Switchname %PORT-5-IF_DOWN_OLS_RCVD: %$VSAN 11%$ Interface fc1/33 is down (OLS received)  V18001FI48_1B-01_30 
Switchname %PORT-5-IF_DOWN_OLS_RCVD: %$VSAN 11%$ Interface fc1/17 is down (OLS received)  V18001FI48_1B-01_31 
Switchname %PORT-5-IF_DOWN_OLS_RCVD: %$VSAN 11%$ Interface fc1/1 is down (OLS received)  V18001FI48_1B-01_32 

-- Issue remains unchanged even if the port-channel and switch interfaces are bounced.
-- Port-channel re-creation doesn't make any difference.

Ursache

FI on UCS being used is not on the code that supports the MDS switches to use port channels. 

Lösung

Resolution : FI on UCS (model: 6248) needs to be updated to 4.0(1a) or above. 

Workaround : Connect the interfaces as single links, not in a port-channel.

Betroffene Produkte

Connectrix MDS-Series Hardware

Produkte

Connectrix MDS-9148S, Connectrix MDS-Series Firmware 6.X, Connectrix MDS-Series Hardware
Artikeleigenschaften
Artikelnummer: 000167985
Artikeltyp: Solution
Zuletzt geändert: 20 Nov. 2020
Version:  2
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