Hello, I'm using a 8G DWDM link to connect 2 datacenters at ~50km distance.
The DWDM device is an Alcatel-Lucent model 1830. My questions are :
1. Does anybody have more documentation about using Alcatel-Lucent 1830 and Brocade DCX ? I wonder what tests have been made in regards of:
vc_translation_link_init, ISL R_RDY, fill word, QOS and Credit Recovery. And if there are any best practise for these values while utilising this device.
The only documentation I have about Alcatel-Lucent 1830 is the one in attachement.
2. Currently I have the below configuration, but I'm not happy with ISL R_RDY since this doesnt allow me to use more advanced features.
However, if turning ISL R_RDY off, link doesnt come as online. I have tried switching to Fill Word 0 and VC link init to 0 with both ISL R_RDY on or off, but I have following errors. Can somebody tell me how the portcfgfillword & portcfglongdistance sequence can be done succesfully ? Firmware is v7.0.2c
switch:FID128:admin> portcfgshow 1/0
Area Number: 0
Speed Level: 8G
Fill Word(On Active) 3(A-A then SW I-A)
Fill Word(Current) 3(A-A then SW I-A)
AL_PA Offset 13: OFF
Trunk Port ON
Long Distance LS
VC Link Init ON
Desired Distance 176 Km
Reserved Buffers 710
Locked L_Port OFF
Locked G_Port ON
Disabled E_Port OFF
Locked E_Port ON
ISL R_RDY Mode ON
RSCN Suppressed OFF
Persistent Disable OFF
LOS TOV enable OFF
NPIV capability ON
QOS E_Port OFF
Port Auto Disable: OFF
Rate Limit OFF
EX Port OFF
Mirror Port OFF
Credit Recovery OFF
F_Port Buffers OFF
Fault Delay: 0(R_A_TOV)
NPIV PP Limit: 255
CSCTL mode: OFF
switch:FID128:admin> portcfgfillword 1/0 0
portcfglongdistance vc_translation_link_init conflicts with portcfgfillword configuration. Valid configurations are: vc_translation_link_init = 0, fillword = IDLE_IDLE or vc_translation_link_init = 1 fillword=ARB_ARB, IDLE_ARB, AA_THEN_IA
switch:FID128:admin> portcfglongdistance 1/0 LS 0 176
Warning: setting VC translation link init to 0 for extended fabric is not recommended. Consider changing it to 1.
3. In your experience, which is the best device for using for DWDM with Brocade DCXs ? in Brocade Compatibility Matrix there's plenty of them
I've in all the Years, build 100 and much more Fabric's via WDM, but honestly newer work with Alcatel WDM Plattforms.
I'll try to help you but need more info. Can you please provide for more configurations details at the WDM side ?
From Alcatel WDM, Inventory list, FW Release, are you using SFP or SFP+ ?
Additional can you provide for SFP Part Number you use to build ISL Link ?
Can I assume you are in Open Environments and not FICON ?
if you don't want to post some Info about Config here in the community, this is my email address