Language: English
Pages: 208
Contents......Page 3
Document Organization......Page 11
Document Conventions......Page 12
Documentation Feedback......Page 13
Technical Assistance Center......Page 14
Cisco TAC Escalation Center......Page 15
Understanding QoS......Page 17
Loss......Page 18
Quality of Service Requirements for Voice......Page 19
Voice Traffic......Page 20
Voice Control Traffic......Page 21
Streaming Video......Page 22
Quality of Service Requirements for Data......Page 23
Relative Priority vs. Over-Engineering Bandwidth Provisioning......Page 24
Provisioning for Important Data Traffic......Page 25
Non-Technical QoS Considerations of Data......Page 26
Service-Provider QoS Requirements......Page 27
Classification Tools......Page 28
Type of Service and Differentiated Services Code Points......Page 29
Classification Equivalents......Page 30
Classification Recommendations......Page 31
Streaming Video......Page 32
Scheduling Tools......Page 33
Class-Based Weighted-Fair Queueing......Page 34
Low-Latency Queueing......Page 35
Weighted-Random Early Detect......Page 36
Provisioning Tools......Page 38
Link-Efficiency Mechanisms......Page 39
Management Tools......Page 42
Overview......Page 45
CallManager......Page 46
Video......Page 47
DLSW+......Page 48
Summary......Page 49
Overview......Page 51
Transmit Buffer Congestion......Page 52
Classification......Page 54
Scheduling......Page 55
Server Farm Switch Selection......Page 56
Voice Bearer Traffic......Page 57
Skinny Protocol......Page 60
MGCP......Page 61
Mission-Critical Data......Page 62
Selecting an Access-Layer Switch......Page 64
Catalyst 6500 as an Access-Layer Switch......Page 65
Configuring IP Phone Port Queuing......Page 67
Configuring the Uplink to the Distribution Switch......Page 68
Verifying the Configuration......Page 69
Catalyst 4000 as an Access-Layer Switch......Page 71
Catalyst 4000 with Supervisor III......Page 72
Catalyst 4000 with Supervisor II......Page 79
Catalyst 3524-PWR XL as an Access-Layer Switch......Page 81
Configuring IP Phone Port Queuing......Page 82
Catalyst 3550 as an Access-Layer Switch......Page 83
Modifying the CoS-to-DSCP Mappings......Page 84
Configuring ACLs......Page 85
Configuring the Uplink to the Distribution Switch......Page 86
Verifying the Configuration......Page 87
Catalyst 2950 as an Access-Layer Switch......Page 88
Modifying the CoS-to-DSCP Mappings......Page 89
Configuring Access-Layer Phone Support......Page 90
Verifying the Configuration......Page 91
Catalyst 6500 (with Catalyst OS) as a Distribution-Layer Switch......Page 92
Configuring the Distribution Layer with a Layer 3 Switch......Page 93
Configuring the Distribution Layer with a Layer 2 Switch......Page 94
Verifying the Configuration......Page 95
Enabling QoS......Page 97
Configuring the Distribution Layer with a Layer 3 Switch......Page 98
Configuring the Distribution Layer with a Layer 2 Switch......Page 99
Catalyst 4000 with Supervisor III as a Distribution-Layer Switch......Page 101
Modifying the CoS-to-DSCP Mapping......Page 102
Configuring ACLs......Page 103
Configuring CoS or DSCP Trust......Page 104
Verifying the Configuration......Page 105
Enabling QoS......Page 108
Configuring ACLs......Page 109
Configuring CoS or DSCP Trust......Page 110
Verifying the Configuration......Page 111
Summary......Page 113
Overview......Page 115
Policers and Shapers......Page 116
TX Ring......Page 117
Classifying and Provisioning for Voice on the WAN Edge......Page 118
Classifying and Provisioning for Data on the WAN Edge......Page 120
High-Speed Point-to-Point Links......Page 123
Slow-Speed Point-to-Point Links......Page 124
High-Speed Frame Relay Links......Page 125
Distributed-Platform High-Speed Frame Relay Links......Page 128
Slow-Speed Frame Relay Links......Page 129
Distributed-Platform Slow-Speed Frame Relay Links......Page 131
High-Speed ATM Links......Page 132
Slow-Speed ATM Links......Page 133
ATM-to-Frame Relay Recommendations......Page 135
ISDN Recommendations......Page 138
Summary Configurations......Page 140
Remote LAN Edge for Voice......Page 142
Remote LAN Edge for Video......Page 143
Input Policies......Page 144
Summary Configuration......Page 146
show policy......Page 148
Example 1......Page 150
Example 2......Page 154
show interface......Page 156
show frame-relay pvc......Page 157
show atm vc......Page 161
show atm pvc......Page 162
Overview......Page 163
Classification of Voice Bearer traffic......Page 164
Fragment Sizing for MLPPP over ATM......Page 165
Traffic Shaping......Page 166
Bandwidth Calculation......Page 167
Application of QoS to DSL in a SOHO Environment......Page 168
One and Two Box DSL Solution......Page 169
Third-Party Modem Solution......Page 171
Application of QoS to Cable in a SOHO Environment......Page 172
One and Two Box Cable Solution......Page 173
Third-Party Modem Solution......Page 175
Last Mile Wireless, IDSL, etc.......Page 176
Voice over ISDN......Page 177
Summary......Page 178
Overview......Page 179
MPLS Modes of Operation......Page 180
MPLS Label Stack......Page 181
Placement of Labels by Mode......Page 182
After a Link Failure......Page 183
Redundancy......Page 184
Using IP Multicast over MPLS VPNs......Page 185
CE Routers......Page 186
PE Routers......Page 188
P Routers......Page 191
DSCP Equivalents......Page 193
Catalyst 6500 Linecards and Queuing Mechanisms......Page 194
Mission-Critical Applications Well-Known Ports......Page 195
DLSW+ Considerations......Page 196
When to Enable cRTP......Page 197
Cisco Public Documentation......Page 198
Cisco Internal Documentation......Page 199
Other External Sites......Page 200
Index......Page 201
