04-17-2007 03:36 AM
Hi sombut,v4.1.1c is a very OLD FabOS Release approx. 3 and half years. This Release is EOL, and i assuming that the Compatibility beetwen 5.1.1 is not appoved, and/or Brocade not longer test New Release whit EOL Release. If you have access to new FabOS release ( Latest is v5.0.5c ) upgrade the 12000 step-by-step , please refer here the Release Notes before Upgrade.
04-17-2007 10:39 PM
sombut, is this you question ?routing policy must same configured by the 12K exactely the 48K, excepted by the 48K with Inserted FR4-18i Blade. If you have FR4 blade installed in the 48K , see here the Manuals for Details.