Fibre Channel (SAN)

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Contributor
Posts: 30
Registered: ‎06-04-2012

Few Queries on TS-300

Hi Freinds,

 

After having read the TS-300 course, I have few queries that I am still confused.

 

1. In case of a Link Reset, the port will also cause loss of sync/signal?

2. In What cases we see a device with plogi successful but no SCR registration?

3. Whats the difference between LINK FAILURES and LOSS OF SIGNAL? Is Loss of Sync impacting to End device?

 

 

 

 

Valued Contributor
Posts: 761
Registered: ‎06-11-2010

Re: Few Queries on TS-300

Hi,

 

I will try to answer your query:

 

1. In case of a Link Reset, the port will also cause loss of sync/signal? No, a LR does not imply a loss of sync/signal.

 

2. In What cases we see a device with plogi successful but no SCR registration? Access Gateway devs do not perform the SCR registration.. (at least that is what I notices looking into the logs)

 

3. Whats the difference between LINK FAILURES and LOSS OF SIGNAL? Loss of Signal is reported when the port does not recieve signal for a certain amount of time and Link Failure is reported when, during the Link reset protocol, the port times out when waiting for a privimite.

Is Loss of Sync impacting to End device? Depening on the rate of errors, it may.

 

Rgds,

Felipon

 

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