Lenovo RackSwitch G8264 Application Manual

Also see for RackSwitch G8264: Installation guide Product guide Product guide Command reference Installation guide

Contents

© Copyright Lenovo 2016 Chapter 21: FCoE and CEE 379PFC Configuration ExampleNote: DCBX may be configured to permit sharing or learning PFC configurationwith or from external devices. This example assumes that PFC configuration isbeing performed manually. See “Data Center Bridging Capability Exchange” onpage 388 for more information on DCBX. Even if the G8264 learns the PFCconfiguration from a DCBX peer, the PFC configuration must be performedmanually.This example is consistent with the network shown in Figure 32 on page 366. Inthis example, the following topology is used.In this example, PFC is to facilitate lossless traffic handling for FCoE (priority value3) and a business‐critical LAN application (priority value 4).Assuming that CEE is off (the G8264 default), the example topology shown in thetable above can be configured using the following commands:1. Turn CEE on.Note: Turning CEE on will automatically change some 802.1p QoS and 802.3xstandard flow control settings and menus (see “Turning CEE On or Off” onpage 368).Table 35. Port‐Based PFC ConfigurationSwitchPort802.1pPriority Usage PFCSetting1 0‐2 LAN Disabled3 (not used) Enabled4 Business‐critical LAN Enabledothers (not used) Disabled2 3 FCoE (to FCF bridge) Enabledothers (not used) Disabled3 3 FCoE Enabledothers (not used) Disabled4 0‐2 LAN Disabled3 (not used) Enabled4 Business‐critical LAN Enabledothers (not used) DisabledRS G8264(config)# cee enable