Users Guide

Conguring PFC without a DCB Map.........................................................................................................................233
Priority-Based Flow Control Using Dynamic Buer Method....................................................................................233
Pause and Resume of Trac..................................................................................................................................233
Buer Sizes for Lossless or PFC Packets.............................................................................................................234
Behavior of Tagged Packets.........................................................................................................................................234
Conguration Example for DSCP and PFC Priorities................................................................................................235
SNMP Support for PFC and Buer Statistics Tracking............................................................................................235
Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................236
PFC and ETS Conguration Examples........................................................................................................................237
Using PFC to Manage Converged Ethernet Trac...................................................................................................237
Operations on Untagged Packets................................................................................................................................ 237
Generation of PFC for a Priority for Untagged Packets........................................................................................... 237
Congure Enhanced Transmission Selection..............................................................................................................237
Creating an ETS Priority Group..............................................................................................................................238
ETS Operation with DCBx...................................................................................................................................... 239
Conguring ETS in a DCB Map..............................................................................................................................239
Hierarchical Scheduling in ETS Output Policies......................................................................................................... 240
Using ETS to Manage Converged Ethernet Trac....................................................................................................241
Applying DCB Policies in a Switch Stack.....................................................................................................................241
Congure a DCBx Operation.........................................................................................................................................241
DCBx Operation........................................................................................................................................................241
DCBx Port Roles...................................................................................................................................................... 242
DCB Conguration Exchange.................................................................................................................................243
Conguration Source Election................................................................................................................................243
Propagation of DCB Information............................................................................................................................244
Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 244
DCBx Example..........................................................................................................................................................245
DCBx Prerequisites and Restrictions.....................................................................................................................245
Conguring DCBx....................................................................................................................................................245
Verifying the DCB Conguration..................................................................................................................................248
QoS dot1p Trac Classication and Queue Assignment..........................................................................................255
Conguring the Dynamic Buer Method................................................................................................................... 256
Sample DCB Conguration...........................................................................................................................................257
PFC and ETS Conguration Command Examples...............................................................................................258
13 Dynamic Host Conguration Protocol (DHCP).........................................................................................259
DHCP Packet Format and Options............................................................................................................................. 259
Assign an IP Address using DHCP................................................................................................................................261
Implementation Information..........................................................................................................................................262
Congure the System to be a DHCP Server..............................................................................................................262
Conguring the Server for Automatic Address Allocation..................................................................................263
Specifying a Default Gateway................................................................................................................................ 264
Congure a Method of Hostname Resolution..................................................................................................... 264
Using DNS for Address Resolution........................................................................................................................264
Using NetBIOS WINS for Address Resolution..................................................................................................... 265
Creating Manual Binding Entries............................................................................................................................265
Debugging the DHCP Server.................................................................................................................................265
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