Setup Guide

Priority-Based Flow Control Using Dynamic Buer Method....................................................................................274
Pause and Resume of Trac.................................................................................................................................. 274
Buer Sizes for Lossless or PFC Packets.............................................................................................................274
Behavior of Tagged Packets.........................................................................................................................................275
Conguration Example for DSCP and PFC Priorities................................................................................................275
SNMP Support for PFC and Buer Statistics Tracking............................................................................................276
Performing PFC Using DSCP Bits Instead of 802.1p Bits......................................................................................... 277
PFC and ETS Conguration Examples........................................................................................................................278
Using PFC to Manage Converged Ethernet Trac...................................................................................................278
Operations on Untagged Packets................................................................................................................................ 278
Generation of PFC for a Priority for Untagged Packets........................................................................................... 279
Congure Enhanced Transmission Selection..............................................................................................................279
ETS Prerequisites and Restrictions........................................................................................................................279
Creating an ETS Priority Group..............................................................................................................................279
ETS Operation with DCBx......................................................................................................................................280
Conguring Bandwidth Allocation for DCBx CIN................................................................................................. 281
Conguring ETS in a DCB Map..............................................................................................................................282
Hierarchical Scheduling in ETS Output Policies......................................................................................................... 283
Using ETS to Manage Converged Ethernet Trac...................................................................................................283
Applying DCB Policies in a Switch Stack.................................................................................................................... 284
Congure a DCBx Operation........................................................................................................................................284
DCBx Operation....................................................................................................................................................... 284
DCBx Port Roles...................................................................................................................................................... 284
DCB Conguration Exchange................................................................................................................................ 286
Conguration Source Election................................................................................................................................286
Propagation of DCB Information............................................................................................................................287
Auto-Detection and Manual Conguration of the DCBx Version.......................................................................287
DCBx Example..........................................................................................................................................................287
DCBx Prerequisites and Restrictions.....................................................................................................................288
Conguring DCBx....................................................................................................................................................288
Verifying the DCB Conguration................................................................................................................................. 292
QoS dot1p Trac Classication and Queue Assignment..........................................................................................300
Conguring the Dynamic Buer Method.................................................................................................................... 301
Sample DCB Conguration...........................................................................................................................................302
PFC and ETS Conguration Command Examples...............................................................................................303
12 Dynamic Host Conguration Protocol (DHCP).........................................................................................304
DHCP Packet Format and Options............................................................................................................................. 304
Assign an IP Address using DHCP...............................................................................................................................306
Implementation Information..........................................................................................................................................307
Congure the System to be a DHCP Server..............................................................................................................307
Conguring the Server for Automatic Address Allocation..................................................................................308
Specifying a Default Gateway................................................................................................................................309
Congure a Method of Hostname Resolution...................................................................................................... 310
Using DNS for Address Resolution.........................................................................................................................310
Using NetBIOS WINS for Address Resolution...................................................................................................... 310
Contents
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