Users Guide

Choosing an Interface-Range Macro.................................................................................................................... 422
Monitoring and Maintaining Interfaces........................................................................................................................423
Split 40G Ports on a 16X40G QSFP+ Module............................................................................................................424
Splitting 100G Ports...................................................................................................................................................... 425
Link Dampening..............................................................................................................................................................425
Important Points to Remember............................................................................................................................. 426
Conguration Example of Link Dampening...........................................................................................................426
Enabling Link Dampening........................................................................................................................................428
Link Bundle Monitoring................................................................................................................................................. 429
Using Ethernet Pause Frames for Flow Control........................................................................................................ 430
Enabling Pause Frames...........................................................................................................................................430
Congure the MTU Size on an Interface.....................................................................................................................431
Port-Pipes.......................................................................................................................................................................432
CR4 Auto-Negotiation...................................................................................................................................................432
FEC Conguration......................................................................................................................................................... 432
Setting the Speed of Ethernet Interfaces.................................................................................................................. 434
Syslog Warning Upon Connecting SFP28 Optics with QSA....................................................................................435
Adjusting the Keepalive Timer......................................................................................................................................435
View Advanced Interface Information.........................................................................................................................436
Conguring the Interface Sampling Size.............................................................................................................. 436
Conguring the Trac Sampling Size Globally...........................................................................................................437
Dynamic Counters......................................................................................................................................................... 439
Clearing Interface Counters....................................................................................................................................439
Enhanced Validation of Interface Ranges...................................................................................................................440
Compressing Conguration Files................................................................................................................................. 440
21 IPv4 Routing.............................................................................................................................................444
IP Addresses...................................................................................................................................................................445
Implementation Information....................................................................................................................................445
Conguration Tasks for IP Addresses..........................................................................................................................445
Assigning IP Addresses to an Interface.......................................................................................................................445
Conguring Static Routes.............................................................................................................................................446
Congure Static Routes for the Management Interface.......................................................................................... 447
IPv4 Path MTU Discovery Overview.......................................................................................................................... 448
Packet handling during MTU mismatch................................................................................................................448
Using the Congured Source IP Address in ICMP Messages..................................................................................448
Conguring the ICMP Source Interface............................................................................................................... 448
Conguring the Duration to Establish a TCP Connection........................................................................................ 449
Enabling Directed Broadcast........................................................................................................................................ 449
Resolution of Host Names............................................................................................................................................450
Enabling Dynamic Resolution of Host Names............................................................................................................450
Specifying the Local System Domain and a List of Domains................................................................................... 450
Conguring DNS with Traceroute................................................................................................................................ 451
ARP................................................................................................................................................................................. 452
Conguration Tasks for ARP........................................................................................................................................ 452
Conguring Static ARP Entries....................................................................................................................................452
Contents
15