05-25-2011 08:17 AM
are there any concerns to mix port and WWN zoning in a Fabric in general? In detail the Fabric contains Brocade 5300 switches and Cisco UCS 6120XP switches. NPIV is also used and needed with maximum allowed WWNs of 255.
05-26-2011 07:07 AM
well at the ports where the Cisco switch is plugged in, we wanted to use Port Zoning. The Zone based on Port Zoning contains in the config file 7 lines. If using WWN Zoning the config file gets filled up with at least 510 lines as there are at maximum 510 different WWPNs directing their traffic to that port. For us it seems more easier to manage that challenge with Port Zoning.
The only question was: Is there a lack of functionality if mixing it this kind of.
05-26-2011 07:58 AM
I understand your predicament, but if you where to zone that one port (with those 500+ NPIV wwn's hanging of it) all wwn's are able to see all and everything.
I would not want to know what that does with crosstalk, chatter and rscn should one of your node reboot or misbehave.
Work it'll most probably will, but when it doesn't you'll have an hard time troubleshooting and correcting to issues.
05-26-2011 08:02 AM
The quick answer to your question regarding lack or loss of functionality is; No. The enforcement mechanism used in a mixed zoning configuration will be session based instead of frame based enforcement. Read Brocade's Zoning Best Practices whitepaper for a more in-depth explanation.
Frame-based hardware enforcement occurs in the following cases on a per-zone basis:
Session-based hardware enforcement occurs in the following cases on a per-zone basis: