Enterasys Networks Security Router X-PeditionTM - Manual (Page 23)

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Measuring Bandwidth Utilization ...................................................................................................... 12-5
Describing Priority Queues............................................................................................................... 12-5
Configuring Priority Queues ............................................................................................................. 12-5
Describing Traffic Policing ...................................................................................................................... 12-6
Configuring Traffic Policing............................................................................................................... 12-6
Class-based Traffic Shaping .................................................................................................................. 12-7
Traffic Shaping per Policy-Map .............................................................................................................. 12-8
Differences Between Traffic Policing and Traffic Shaping ..................................................................... 12-9
Traffic Shaping and Queue Limit ............................................................................................................ 12-9
Congestion Control & Avoidance ......................................................................................................... 12-10
Describing Queue Size Control (Drop Tail) .................................................................................... 12-10
Describing Random Early Detection............................................................................................... 12-10
Describing Weighted Random Early Detection .............................................................................. 12-11
Configuration per Interface ................................................................................................................... 12-12
Suggestions for Using QoS on the XSR .............................................................................................. 12-13
QoS and Link Fragmentation and Interleaving (LFI) .................................................................................. 12-13
Configuring QoS with MLPPP Multi-Class ........................................................................................... 12-13
Configuring QoS with FRF.12 .............................................................................................................. 12-14
QoS with VLAN ........................................................................................................................................... 12-14
Traffic Classification ............................................................................................................................. 12-14
Describing VLAN QoS Packet Flow ..................................................................................................... 12-15
VLAN Packet with Priority Routed out a Fast/GigabitEthernet Interface ........................................ 12-15
VLAN Packet with Priority Routed out a Serial Interface................................................................ 12-15
Non-VLAN IP Packet Routed Out a Fast/GigabitEthernet Interface............................................... 12-16
QoS with VLAN Configuration Process ................................................................................................ 12-16
QoS on Input .............................................................................................................................................. 12-17
QoS on VPN ............................................................................................................................................... 12-17
QoS over VPN Features ...................................................................................................................... 12-18
Configuring QoS on a Physical Interface ............................................................................................. 12-18
Configuring QoS on a Virtual Tunnel Interface .................................................................................... 12-18
QoS on a Virtual Interface Example ............................................................................................... 12-19
QoS and VPN Interaction ..................................................................................................................... 12-22
Configuring the Shaper on the VPN Interface ................................................................................ 12-23
QoS Policy Configuration Examples ........................................................................................................... 12-24
Simple QoS on Physical Interface Policy ............................................................................................. 12-24
QoS for Frame Relay Policy ................................................................................................................. 12-25
QoS with MLPPP Multi-Class Policy .................................................................................................... 12-26
QoS with FRF.12 Policy ....................................................................................................................... 12-27
QoS with VLAN Policy .......................................................................................................................... 12-28
Input and Output QoS Policy ................................................................................................................ 12-28
Input QoS on Ingress to the Diffserv Domain Policy ............................................................................ 12-29
Chapter 13: Configuring ADSL
Overview ....................................................................................................................................................... 13-1
Features ....................................................................................................................................................... 13-1
PDU Encapsulation Choices .................................................................................................................. 13-2
PPP over ATM.................................................................................................................................. 13-2
PPP over Ethernet over ATM (Routed) ............................................................................................ 13-3
Routed IP over ATM ......................................................................................................................... 13-4
ADSL Limitations .................................................................................................................................... 13-5