HP StorageWorks 1606 Brocade Fabric OS Troubleshooting and Diagnostics Guide v - Page 33
Connectivity Issues, In this Port initialization and FCP auto discovery process
View all HP StorageWorks 1606 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 33 highlights
Connectivity Issues Chapter 3 In this chapter •Port initialization and FCP auto discovery process 19 •Link issues 21 •Connection problems 21 •Link failures 24 •Marginal links 26 •Device login issues 29 •Media-related issues 31 •Segmented fabrics 33 Port initialization and FCP auto discovery process The steps in the port initialization process represent a protocol used to discover the type of connected device and establish the port type and port speed. The possible port types are as follows: • U_Port-Universal FC port. The base Fibre Channel port type and all unidentified, or uninitiated ports are listed as U_Ports. • L_/FL_Port-Fabric Loop port. Connects public loop devices. • G_Port-Generic port. Acts as a transition port for non-loop fabric-capable devices. • E_Port-Expansion port. Assigned to ISL links. • F_Port-Fabric port. Assigned to fabric-capable devices. • EX_Port-A type of E_Port. It connects a Fibre Channel router to an edge fabric. From the point of view of a switch in an edge fabric, an EX_Port appears as a normal E_Port. It follows applicable Fibre Channel standards as other E_Ports. However, the router terminates EX_Ports rather than allowing different fabrics to merge as would happen on a switch with regular E_Ports. • M_Port-A mirror port. A mirror port lets you configure a switch port to connect to a port to mirror a specific source port and destination port traffic passing though any switch port. This is only supported between F_Ports. • VE_Port-A virtual E_Port. A Gigabit Ethernet switch port configured for an FCIP tunnel is called a VE port (virtual E-port). However, with a VEX_Port at the other end it does not propagate fabric services or routing topology information from one edge fabric to another. Fabric OS Troubleshoot and Diagnostics Guide 19 53-1001340-01