Users Guide

Priority-Based Flow Control Using Dynamic Buer Method....................................................................................235
Pause and Resume of Trac..................................................................................................................................235
Buer Sizes for Lossless or PFC Packets............................................................................................................ 236
Behavior of Tagged Packets.........................................................................................................................................236
SNMP Support for PFC and Buer Statistics Tracking............................................................................................237
Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................237
Conguration Example for DSCP and PFC Priorities................................................................................................238
Using PFC to Manage Converged Ethernet Trac...................................................................................................238
Generation of PFC for a Priority for Untagged Packets...........................................................................................239
Congure Enhanced Transmission Selection..............................................................................................................239
Creating an ETS Priority Group..............................................................................................................................239
ETS Operation with DCBx...................................................................................................................................... 240
Conguring ETS in a DCB Map..............................................................................................................................240
Hierarchical Scheduling in ETS Output Policies......................................................................................................... 242
Using ETS to Manage Converged Ethernet Trac...................................................................................................242
Applying DCB Policies in a Switch Stack.................................................................................................................... 242
Congure a DCBx Operation........................................................................................................................................ 242
DCBx Operation....................................................................................................................................................... 243
DCBx Port Roles...................................................................................................................................................... 243
DCB Conguration Exchange.................................................................................................................................244
Conguration Source Election................................................................................................................................245
Propagation of DCB Information............................................................................................................................245
Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 245
DCBx Example..........................................................................................................................................................246
DCBx Prerequisites and Restrictions.....................................................................................................................246
Conguring DCBx.................................................................................................................................................... 247
Verifying the DCB Conguration................................................................................................................................. 250
QoS dot1p Trac Classication and Queue Assignment.......................................................................................... 257
Conguring the Dynamic Buer Method....................................................................................................................257
Sample DCB Conguration...........................................................................................................................................258
PFC and ETS Conguration Command Examples...............................................................................................260
12 Dynamic Host Conguration Protocol (DHCP)..........................................................................................261
DHCP Packet Format and Options.............................................................................................................................. 261
Assign an IP Address using DHCP...............................................................................................................................263
Implementation Information..........................................................................................................................................264
Congure the System to be a DHCP Server..............................................................................................................264
Conguring the Server for Automatic Address Allocation..................................................................................265
Specifying a Default Gateway................................................................................................................................266
Congure a Method of Hostname Resolution..................................................................................................... 266
Using DNS for Address Resolution........................................................................................................................266
Using NetBIOS WINS for Address Resolution......................................................................................................267
Creating Manual Binding Entries............................................................................................................................267
Debugging the DHCP Server................................................................................................................................. 267
Using DHCP Clear Commands.............................................................................................................................. 268
Congure the System to be a DHCP Client...............................................................................................................268
Conguring the DHCP Client System...................................................................................................................268
Contents
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