HP StorageWorks 8/24 Brocade Web Tools Administrator's Guide v6.2.0 (53-100119 - Page 215
Administering Extended Fabrics, In this Extended link buffer allocation overview
View all HP StorageWorks 8/24 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 215 highlights
Chapter Administering Extended Fabrics 14 In this chapter •Extended link buffer allocation overview 187 •Configuring a port for long distance 189 Extended link buffer allocation overview If the link is used over long distances, use the Extended Fabric tab of the Switch Administration window to configure the long-distance setting of a port. Because buffer credits are a switch resource, you must own the switch in order to modify extended fabric settings on a port. The EGM license must be enabled on the switch; otherwise, access to configuring long distance is denied and an error message displays. The EGM license is required only for 8 Gbps platforms, such as the Brocade DCX and DCX-4S enterprise-class platforms, the Encryption Switch, the 300, 5300, and 5100 switches. For non-8 Gbps platforms, all functionalities are available without EGM license. The Extended Fabric tab displays information about the port speed, long-distance settings, and buffer credits, as shown in Figure 91 on page 188. For detailed information on managing extended fabrics, see the Fabric OS Administrator's Guide. The Extended Fabric tab displays the following information: • Port Number • Buffer Limited-Indicates whether the port is buffer limited. A buffer-limited port can come online with fewer buffer credits allocated than its configuration specifies, allowing it to operate at a reduced bandwidth instead of being disabled for lack of buffers. Buffer-limited operation is supported for the LS and LD extended ISL modes only and is persistent across reboots, switch disabling and enabling, and port disabling and enabling. • Port Speed-The port speed is displayed as follows: • 1G-1 Gbps • 2G-2 Gbps • 4G-4 Gbps • 8G-8 Gbps • N1-Negotiated 1 Gbps • N2-Negotiated 2 Gbps • N4-Negotiated 4 Gbps • Auto-Negotiation • Buffer Needed/Allocated-The number of buffers needed and the number of buffers that are actually allocated. Web Tools Administrator's Guide 187 53-1001194-01