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Fibre Channel (SAN)

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New Contributor
Posts: 2
Registered: ‎04-14-2016
Accepted Solution

Where is the round-trip source and destination of the Fcping command?

Where is the round-trip source and destination of the Fcping command?

 

ex]

switch:admin> fcping 10:00:00:00:c9:29:0e:c4 21:00:00:20:37:25:ad:05

Source: 10:00:00:00:c9:29:0e:c4

Destination: 21:00:00:20:37:25:ad:05

Zone Check: Not Zoned

 

Pinging 10:00:00:00:c9:29:0e:c4 [0x20800] with 12 bytes of data:

received reply from 10:00:00:00:c9:29:0e:c4: 12 bytes time:1162 usec

received reply from 10:00:00:00:c9:29:0e:c4: 12 bytes time:1013 usec

received reply from 10:00:00:00:c9:29:0e:c4: 12 bytes time:1442 usec

received reply from 10:00:00:00:c9:29:0e:c4: 12 bytes time:1052 usec

received reply from 10:00:00:00:c9:29:0e:c4: 12 bytes time:1012 usec

5 frames sent, 5 frames received, 0 frames rejected, 0 frames timeout

Round-trip min/avg/max = 1012/1136/1442 usec

 

Round-trip Destination ? 1 or 2 ??

 

1.Source (Domain controller) < - > SAN Switch F-port
2.Source (Domain controller) < -  SAN Switch F-port  - > Server HBA

 

Frequent Contributor
Posts: 78
Registered: ‎04-04-2018

Re: Where is the round-trip source and destination of the Fcping command?

Hello,

 

as per documentation.

 

        When you use fcPing with a source and a destination,  the
        command performs a zoning check between the two ports. In
        addition, two Fibre Channel ELS requests  are  generated.
        The  first  ELS  request is from the domain controller to
        the source port identifier. The  second  ELS  request  is
        from  the domain controller to the destination port iden-
        tifier. The ELS Echo request elicits an ELS Echo response
        from  a  port  identifier in the fabric and is useful for
        validating link connectivity.

This ouputu is from SERVER HBA as the WWN is hosted on HBA not on switch.

Please mark this response as "Accept as Solution" if it answers your question.

Marian Bezeg
New Contributor
Posts: 2
Registered: ‎04-14-2016

Re: Where is the round-trip source and destination of the Fcping command?

Thank you for your response.
Do you have a document or picture that says you get it from an HBA?

Frequent Contributor
Posts: 78
Registered: ‎04-04-2018

Re: Where is the round-trip source and destination of the Fcping command?

Hello,

 

check nice explanation on link below:

 

http://www.drdobbs.com/a-ping-utility-for-fibre-channel-sans/199101442

Please mark this response as "Accept as Solution" if it answers your question.

Marian Bezeg

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