Example: IB Path and Counters

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The output of the show diagnostics ib-path command is displayed in a top-down manner, which represents the IB path's flow from the server to where it terminates the IB path on the fabric.

[OFOS] show ib path-stats 10e0000186a7f1 10e09a863c0005
----------------------------------------------------------
name                             ibpath
link-id                          0
from-node-id                     10e0000186a7f1
to-node-id                       d03480e0100003ff
from-node-symbol-errs            0
from-node-link-downed            1
from-node-rcv-errs               0
from-node-rcv-switch-relay-errs  0
from-node-rcv-pkt                149059286
from-node-trans-disc             17
from-node-trans-pkt              66244051
to-node-symbol-errs              0
to-node-link-downed              0
to-node-rcv-errs                 0
to-node-rcv-switch-relay-errs    0
to-node-rcv-pkt                  0
to-node-trans-disc               0
to-node-trans-pkt                0
--------------------------------------------------------
name                             ibpath
link-id                          1
from-node-id                     d03480e0100003ff
to-node-id                       685580e0100003ff
from-node-symbol-errs            0
from-node-link-downed            0
from-node-rcv-errs               0
from-node-rcv-switch-relay-errs  0
from-node-rcv-pkt                0
from-node-trans-disc             0
from-node-trans-pkt              0
to-node-symbol-errs              0
to-node-link-downed              0
to-node-rcv-errs                 0
to-node-rcv-switch-relay-errs    0
to-node-rcv-pkt                  2512
to-node-trans-disc               0
to-node-trans-pkt                2536
---------------------------------------------------------  
name                             ibpath
link-id                          2
from-node-id                     685580e0100003ff
to-node-id                       10e09a863c0001
from-node-symbol-errs            0
from-node-link-downed            0
from-node-rcv-errs               0
from-node-rcv-switch-relay-errs  0
from-node-rcv-pkt                2512
from-node-trans-disc             0
from-node-trans-pkt              2536
to-node-symbol-errs              0
to-node-link-downed              0
to-node-rcv-errs                 0
to-node-rcv-switch-relay-errs    0
to-node-rcv-pkt                  631
to-node-trans-disc               0
to-node-trans-pkt                658
---------------------------------------------------------
name                             ibpath
link-id                          3
from-node-id                     10e09a863c0001
to-node-id                       10e09a863c0005
from-node-symbol-errs            0
from-node-link-downed            0
from-node-rcv-errs               0
from-node-rcv-switch-relay-errs  0
from-node-rcv-pkt                631
from-node-trans-disc             0
from-node-trans-pkt              658
to-node-symbol-errs              0
to-node-link-downed              0
to-node-rcv-errs                 0
to-node-rcv-switch-relay-errs    0
to-node-rcv-pkt                  0
to-node-trans-disc               0
to-node-trans-pkt                0

The fields in the command output show information about performance and any errors on the links in the overall IB path. This table provides a brief description of the fields. For documentation, refer to the InfiniBand Architecture Release 1.2.1, July 2007, Final Release.

Field	Description
`lid`/`port`	The LID and port that the IB path is using.
`width`/`speed`	The link width and speed.
`SymErrors`	The Symbol Error Counter, which shows the total number of minor link errors detected on one or more IB lanes.
`LnkRcov`	The Link Error Recovery Counter, which shows the total number of times the port training state machine has successfully completed a link-error recovery.
`LnkDwnd`	The Link Downed Counter, which shows the total number of times the port training state machine has not successfully completed a link-error recovery, and as a result, has put the link into `down` state.
`RxErrs`	The Port Receive Errors Counter, which shows the total number of packets received on the port, but the packets contained errors.
`RxSwErr`	The Port Receive Switch Relay Errors Counter, which shows the total number of packets received on the port that were discarded because they could not be forwarded by the switch relay.
`TxDisc`	The Port Transmit Discard Errors Counter, which shows the total number of outbound packets discarded by the port because the port is down or congested.
`TxPkts`	The Port Transmit Packets Counter, which shows the total number of packets transmitted on all virtual lanes from the port.
`RxPkts`	The Port Receive Packets Counter, which shows the total number of packets received on all virtual lanes on the port, including packets containing errors. Link packets are excluded.

Example: IB Path and Counters

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