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New Contributor
Posts: 2
Registered: ‎02-23-2017

We have a 16G FC test device (MTS-5800) that can't establish a link with the new Brocade G620 Gen 6 switch

We know the MTS-5800 does not recognize Training frames, so we set the G620 port speed to 16G to avoid speed negotiation.  We also disabled 10/16G FEC and 16G FEC via TTS but we are still receiving Training frames from the G620 (we have captured the traffic between the MTS-5800 and the G620 with an Xgig FC Analyzer.  Does anyone know if there is a way we can completely disable the use of TTS on the G620?

Brocade Moderator
Posts: 258
Registered: ‎08-31-2009

Re: We have a 16G FC test device (MTS-5800) that can't establish a link with the new Brocade G620 Gen 6 switch

[ Edited ]

Hello,

 

Have you run the command?:

portcfgfec --disable -tts

or

portcfgfec --disable -fec

 

Can you run command below and provide output?:

 

portcfgfec --show

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New Contributor
Posts: 2
Registered: ‎02-23-2017

Re: We have a 16G FC test device (MTS-5800) that can't establish a link with the new Brocade G620 Gen 6 switch

Hi.

 

Yes we ran those commands and the port configuration is shown below.  If you see anything that looks incorrect, please let us know.

 

However, after further analysis of the frames we captured, we found that the MTS-5800 was generating the wrong primitives and the problem was not with the G620.  We still don't understand why the G620 was sending Training frames because it is our understanding that they are only used for speed negotiation and possibly FEC negotiation / announcement, but since the Training frames are not causing our problem, we don't need to pursue that issue any further.  Thanks for your help Smiley Happy

 

Area Number: 3
Octet Speed Combo: 1(32G|16G|8G|4G)
Speed Level: 16G
AL_PA Offset 13: OFF
Trunk Port OFF
Long Distance OFF
VC Link Init OFF
Locked L_Port OFF
Locked G_Port ON
Disabled E_Port ON
Locked E_Port OFF
ISL R_RDY Mode OFF
RSCN Suppressed OFF
Persistent Disable OFF
LOS TOV mode 0(OFF)
NPIV capability ON
QOS Port AE
Port Auto Disable: OFF
EX Port OFF
Mirror Port OFF
SIM Port OFF
Credit Recovery ON
F_Port Buffers OFF
E_Port Credits OFF
Fault Delay: 0(R_A_TOV)
NPIV PP Limit: 126
NPIV FLOGI Logout: OFF
CSCTL mode: OFF
TDZ mode: OFF
D-Port mode: OFF
D-Port over DWDM: OFF
Compression: OFF
10G/16G FEC: OFF
16G FEC via TTS: OFF

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