Authorized IP configuration···································································································································· 406
Overview ·········································································································································································406
Configuring authorized IP··············································································································································406 Authorized IP configuration example ···························································································································407
Authorized IP configuration example ·····················································································································407
ACL configuration ··················································································································································· 410
ACL overview ··································································································································································410
Introduction to IPv4 ACL···········································································································································410
Effective period of an ACL·······································································································································411
ACL step·····································································································································································412
Configuring an ACL························································································································································412
Configuration task list···············································································································································412
Configuring a time range ········································································································································413
Creating an IPv4 ACL···············································································································································414
Configuring a rule for a basic IPv4 ACL ················································································································414
Configuring a rule for an advanced IPv4 ACL ······································································································416
Configuring a rule for an Ethernet frame header ACL··························································································419
Configuration guidelines················································································································································421
QoS configuration··················································································································································· 422
Introduction to QoS ························································································································································422
Networks without QoS guarantee ··························································································································422
QoS requirements of new applications ··················································································································422
Congestion: causes, impacts, and countermeasures ····························································································422
Traffic classification ··················································································································································424
Packet precedences ··················································································································································425
Queue scheduling·····················································································································································427
Line rate ·····································································································································································429
Priority mapping ·······················································································································································430
Introduction to priority mapping tables ··················································································································431
QoS configuration ··························································································································································432
Configuration task lists ·············································································································································432
Creating a class ························································································································································434
Configuring match criteria·······································································································································435
Creating a traffic behavior ······································································································································437
Configuring traffic mirroring and traffic redirecting for a traffic behavior·························································438
Configuring other actions for a traffic behavior····································································································439
Creating a policy······················································································································································440
Configuring
Configuring queue scheduling on a port ···············································································································442
Configuring line rate on a port ·······························································································································443
Configuring priority mapping tables ······················································································································444
Configuring priority trust mode on a port ··············································································································445
Configuration guidelines················································································································································447
ACL/QoS configuration examples ························································································································ 448
ACL/QoS configuration example ·································································································································448
PoE configuration ···················································································································································· 458
PoE overview···································································································································································458
Advantages ·······························································································································································458
Composition ······························································································································································458
11