http://wiki.ciscolinux.co.uk/index.php?action=history&feed=atom&title=FCoE 2026-04-05T14:16:22Z Revision history for this page on the wiki MediaWiki 1.37.2 http://wiki.ciscolinux.co.uk/index.php?title=FCoE&diff=1806&oldid=prev 2016-01-05T21:27:42Z

<p><span dir="auto"><span class="autocomment">Fiber Channel over Ethernet</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en-GB"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 23:27, 5 January 2016</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l26">Line 26:</td> <td colspan="2" class="diff-lineno">Line 26:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>     2112B data</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>     2112B data</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>     2148 bytes max frame  </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>     2148 bytes max frame  </div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   FCoE uses default MTU=2240 bytes for this unified fabric.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   FCoE uses default MTU=2240 bytes for this unified fabric.</div></td></tr> </table>

Pio2pio http://wiki.ciscolinux.co.uk/index.php?title=FCoE&diff=1805&oldid=prev 2016-01-05T21:27:05Z

<p>Created page with &quot;=Fiber Channel over Ethernet= Currently we have in data centres 2 major environments, 2 cabling standards, 2 interface adapters; differences: * LAN - focus on Ethernet connec...&quot;</p> <p><b>New page</b></p><div>=Fiber Channel over Ethernet=<br /> <br /> Currently we have in data centres 2 major environments, 2 cabling standards, 2 interface adapters; differences:<br /> * LAN - focus on Ethernet connectivity interfacing with NIC - Network Interface Card<br /> ** can deal with packet loss<br /> * SAN - focus on Fibre Channel connectivity interfacing using HBA - Host Bus Adapter<br /> ** does not support packet loss<br /> <br /> ;FCoE utilizes<br /> * interface CNA - Converged Network Adapter that can understand LAN and SAN traffic<br /> * uses 10Gbps Ethernet cable<br /> * takes advantage of layer 2 domains with multipath support using vpc - virtual port channels and FB - Cisco fabric path technology<br /> <br /> ;FCoE adapted following solutions to overcome converging problems of 2 technologies<br /> *Entire F.C frame needs to carry full payload of Ethernet frame therefore we have Ethernet Jumbo Frames<br /> *map WWN to MAC addresses of Ethernet environment<br /> *FIP - Fibre Channel over Ethernet Initialization Protocol created to handle login of FC devices across of unified fabric<br /> *No packet-loss - using minimum 10Gbps Ethernet cable; there is no packet recovery/delivery mechanism in FCoE<br /> <br /> ;How<br /> We encapsulate FC frame into Ethernet frame with EtherType=0x8906 HEX <br /> <br /> encapsulated EtherType=0x8906<br /> [ Fibre Channel frame ] ----------------------&gt; [ Ethernet frame ]<br /> 36B header<br /> 2112B data<br /> 2148 bytes max frame <br /> <br /> FCoE uses default MTU=2240 bytes for this unified fabric.</div>

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