YES for the WWN and Mac

When I create pools of wwn and Mac for a service profile template, is there a block of addresses that start with a YES that are specific to UCS?  In this guide: http://www.ciscosystems.sc/en/US/products/ps10281/products_configuration_example09186a0080af7515.shtml, I see a trick in the window of this picture: http://www.cisco.com/image/gif/paws/110297/create-sp-ucsblade-11.gif that specifies the use of the prefix 20:00:00:25:B5:xx:xx:xx will ensure uniquiness in WWN name, but when I'm in the same screen on our UCS, I don't see this trick.  The same goes for MACs, there at - it a block with certain values that I should start with?  The MAC of the guide section shows 02:25:B5:00:00:00 in the configuration window: http://www.cisco.com/image/gif/paws/110297/create-sp-ucsblade-09.gif but it is this unique UCS?

Thank you.

For the MACs Cisco recorded the program YES 00: 25:b5 the last three bytes are to you. You can either some arbitrary numbers of makeup or you can put a logic behind it. Here's what I recommend for MACs.

  • Create two clusters of MAC; one for the fabric and the other for fabric B
  • For the last three bytes, use the first for the site/cluster and the other for fabric or B. Example site 1, group 1 and fabric would be this 00:25:b5:11:a0:00 and go up from there. Fabric B would be this 00:25:b5:11:b0:00 and this 00:25:b5:12:a0:00 cluster 2.

For the WWNNs and the WWPN, you want three pools; one for the node WWN and two for the port WWN (vHBA).

Same concept here for the WWNNs use something like 20:11:00:25:b5:00:00:00 for the site 1 cluster 1 and 20:12:00:25:B5:00:00:00 for cluster 1 2 site.

For the WWPN pools do one for fabric and a fabric b like this

  • Fabric of the 1 Group 1 site - 20:00:00:25:b5:11:aa:00
  • Fabric B 1 Group 1 - 20:00:00:25:b5:11:bb:00 of the site

By creating pools MAC and WWPN for each tissue, you can easily identify what fabric on a MAC or WWN comes when you look at the MAC table on a switch or what zoning, you can easily select WWN. might be useful when troubleshooting as well.

Tags: Cisco DataCenter

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