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Accessing Application Core Dumps..............................................................................................................................341
Mini Core Dumps........................................................................................................................................................... 342
Full Kernel Core Dumps.................................................................................................................................................343
Enabling TCP Dumps.....................................................................................................................................................343
Accessing Port Extender Core and Mini Core Dumps.............................................................................................. 344
13 Dynamic Host Conguration Protocol (DHCP).........................................................................................345
DHCP Packet Format and Options............................................................................................................................. 345
Assign an IP Address using DHCP............................................................................................................................... 347
Implementation Information..........................................................................................................................................348
Congure the System to be a DHCP Server..............................................................................................................348
Conguring the Server for Automatic Address Allocation..................................................................................349
Specifying a Default Gateway................................................................................................................................350
Congure a Method of Hostname Resolution..................................................................................................... 350
Using DNS for Address Resolution........................................................................................................................350
Using NetBIOS WINS for Address Resolution...................................................................................................... 351
Creating Manual Binding Entries............................................................................................................................ 351
Debugging the DHCP Server..................................................................................................................................351
Using DHCP Clear Commands.............................................................................................................................. 352
Congure the System to be a Relay Agent................................................................................................................ 352
Congure the System to be a DHCP Client...............................................................................................................354
DHCP Client on a Management Interface............................................................................................................354
DHCP Client Operation with Other Features.......................................................................................................354
Congure Secure DHCP...............................................................................................................................................355
Option 82..................................................................................................................................................................355
DHCP Snooping.......................................................................................................................................................356
Drop DHCP Packets on Snooped VLANs Only....................................................................................................358
Dynamic ARP Inspection........................................................................................................................................ 359
Conguring Dynamic ARP Inspection................................................................................................................... 360
Source Address Validation.............................................................................................................................................361
Enabling IP Source Address Validation...................................................................................................................361
DHCP MAC Source Address Validation................................................................................................................ 362
Enabling IP+MAC Source Address Validation.......................................................................................................362
Viewing the Number of SAV Dropped Packets....................................................................................................363
Clearing the Number of SAV Dropped Packets...................................................................................................363
14 Equal Cost Multi-Path (ECMP)................................................................................................................ 364
ECMP for Flow-Based Anity.....................................................................................................................................364
Enabling Deterministic ECMP Next Hop.............................................................................................................. 364
Conguring the Hash Algorithm Seed.................................................................................................................. 364
Link Bundle Monitoring........................................................................................................................................... 365
Managing ECMP Group Paths.....................................................................................................................................365
Creating an ECMP Group Bundle................................................................................................................................366
Modifying the ECMP Group Threshold...................................................................................................................... 366
BGP Multipath Operation with Link Bankwidth......................................................................................................... 367
Dynamic Re-calculation of Link Bankwidth................................................................................................................ 368
Contents
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