Deployment Guide

Table Of Contents
Data Center Bridging: Default Configuration........................................................................................................... 238
Configuring Priority-Based Flow Control.................................................................................................................. 239
Configuring Lossless Queues................................................................................................................................. 239
Configuring PFC in a DCB Map.................................................................................................................................... 241
Applying a DCB Map on a Port.................................................................................................................................... 242
Configuring PFC without a DCB Map........................................................................................................................ 243
Priority-Based Flow Control Using Dynamic Buffer Method................................................................................244
Behavior of Tagged Packets........................................................................................................................................ 245
Configuration Example for DSCP and PFC Priorities.............................................................................................245
SNMP Support for PFC and Buffer Statistics Tracking........................................................................................246
Performing PFC Using DSCP Bits Instead of 802.1p Bits.....................................................................................247
PFC and ETS Configuration Examples.......................................................................................................................248
Using PFC to Manage Converged Ethernet Traffic............................................................................................... 248
Operations on Untagged Packets............................................................................................................................... 248
Generation of PFC for a Priority for Untagged Packets.......................................................................................249
Configure Enhanced Transmission Selection........................................................................................................... 249
ETS Prerequisites and Restrictions...................................................................................................................... 249
Creating an ETS Priority Group............................................................................................................................. 249
ETS Operation with DCBx...................................................................................................................................... 250
Configuring Bandwidth Allocation for DCBx CIN.............................................................................................. 250
Configuring ETS in a DCB Map.............................................................................................................................. 251
Hierarchical Scheduling in ETS Output Policies...................................................................................................... 252
Using ETS to Manage Converged Ethernet Traffic............................................................................................... 253
Applying DCB Policies in a Switch Stack.................................................................................................................. 253
Configure a DCBx Operation........................................................................................................................................253
DCBx Operation.........................................................................................................................................................253
DCBx Port Roles........................................................................................................................................................254
DCB Configuration Exchange................................................................................................................................ 255
Configuration Source Election...............................................................................................................................255
Propagation of DCB Information...........................................................................................................................256
Auto-Detection and Manual Configuration of the DCBx Version..................................................................256
DCBx Example........................................................................................................................................................... 256
DCBx Prerequisites and Restrictions....................................................................................................................257
Configuring DCBx......................................................................................................................................................257
Verifying the DCB Configuration................................................................................................................................ 260
QoS dot1p Traffic Classification and Queue Assignment......................................................................................269
Configuring the Dynamic Buffer Method..................................................................................................................269
Sample DCB Configuration........................................................................................................................................... 270
Chapter 12: Dynamic Host Configuration Protocol (DHCP)........................................................ 273
DHCP Packet Format and Options............................................................................................................................. 273
Assign an IP Address using DHCP.............................................................................................................................. 275
Implementation Information..........................................................................................................................................275
Configure the System to be a DHCP Server............................................................................................................276
Configuring the Server for Automatic Address Allocation.............................................................................. 276
Specifying a Default Gateway................................................................................................................................ 277
Configure a Method of Hostname Resolution....................................................................................................278
Using DNS for Address Resolution....................................................................................................................... 278
Using NetBIOS WINS for Address Resolution....................................................................................................278
Creating Manual Binding Entries........................................................................................................................... 278
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