Chapter 25 Two Rate Three Color Marker
MGS-3712/MGS-3012F User’s Guide
211
• Green (low loss priority level) packets are forwarded.
trTCM operates in one of two modes: color-blind or color-aware. In color-blind mode, packets
are marked based on evaluating against the PIR and CIR regardless of if they have previously
been marked or not. In the color-aware mode, packets are marked based on both existing color
and evaluation against the PIR and CIR. If the packets do not match any of colors, then the
packets proceed unchanged.
25.2.1 trTCM - Color-blind Mode
All packets are evaluated against the PIR. If a packet exceeds the PIR it is marked red.
Otherwise it is evaluated against the CIR. If it exceeds the CIR then it is marked yellow.
Finally, if it is below the CIR then it is marked green.
Figure 123
trTCM - Color-blind Mode
25.2.2 trTCM - Color-aware Mode
In color-aware mode the evaluation of the packets uses the existing packet loss priority.
trTCM can increase a packet loss priority of a packet but it cannot decrease it. Packets that
have been previously marked red or yellow can only be marked with an equal or higher packet
loss priority.
Packets marked red (high packet loss priority) continue to be red without evaluation against
the PIR or CIR. Packets marked yellow can only be marked red or remain yellow so they are
only evaluated against the PIR. Only the packets marked green are first evaluated against the
PIR and then if they don’t exceed the PIR level are they evaluated against the CIR.
Figure 124
trTCM - Color-aware Mode
Exceed
PIR?
High Packet
Loss
Exceed
CIR?
Medium Packet
Loss
NO
YES
NO
YES
Low Packet
Loss
Exceed
PIR?
High Packet
Loss
Exceed
CIR?
Medium Packet
Loss
NO
YES
NO
YES
Low Packet
Loss
High Packet
Loss
NO
YES
Red?
Yellow?
Medium Packet
Loss
NO
YES
Содержание MGS-3712
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Страница 7: ...Safety Warnings MGS 3712 MGS 3012F User s Guide 7 ...
Страница 8: ...Safety Warnings MGS 3712 MGS 3012F User s Guide 8 ...
Страница 20: ...Table of Contents MGS 3712 MGS 3012F User s Guide 20 ...
Страница 28: ...List of Tables MGS 3712 MGS 3012F User s Guide 28 ...
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Страница 38: ...Chapter 2 Hardware Installation and Connection MGS 3712 MGS 3012F User s Guide 38 ...
Страница 50: ...50 ...
Страница 70: ...Chapter 6 System Status and Port Statistics MGS 3712 MGS 3012F User s Guide 70 ...
Страница 82: ...Chapter 7 Basic Setting MGS 3712 MGS 3012F User s Guide 82 ...
Страница 84: ...84 ...
Страница 132: ...Chapter 15 Link Aggregation MGS 3712 MGS 3012F User s Guide 132 ...
Страница 142: ...Chapter 17 Port Security MGS 3712 MGS 3012F User s Guide 142 ...
Страница 148: ...Chapter 18 Classifier MGS 3712 MGS 3012F User s Guide 148 Figure 80 Classifier Example ...
Страница 153: ...Chapter 19 Policy Rule MGS 3712 MGS 3012F User s Guide 153 Figure 83 Policy Example ...
Страница 154: ...Chapter 19 Policy Rule MGS 3712 MGS 3012F User s Guide 154 ...
Страница 169: ...Chapter 21 Multicast MGS 3712 MGS 3012F User s Guide 169 Figure 96 MVR Group Configuration Example ...
Страница 170: ...Chapter 21 Multicast MGS 3712 MGS 3012F User s Guide 170 ...
Страница 184: ...Chapter 22 Authentication Accounting MGS 3712 MGS 3012F User s Guide 184 ...
Страница 214: ...Chapter 25 Two Rate Three Color Marker MGS 3712 MGS 3012F User s Guide 214 ...
Страница 215: ...215 PART IV IP Application Static Route 217 DHCP 221 ...
Страница 216: ...216 ...
Страница 220: ...Chapter 26 Static Route MGS 3712 MGS 3012F User s Guide 220 ...
Страница 227: ...Chapter 27 DHCP MGS 3712 MGS 3012F User s Guide 227 Figure 134 DHCP Relay for Two VLANs Configuration Example ...
Страница 228: ...Chapter 27 DHCP MGS 3712 MGS 3012F User s Guide 228 ...
Страница 230: ...230 ...
Страница 256: ...Chapter 30 Diagnostic MGS 3712 MGS 3012F User s Guide 256 ...
Страница 260: ...Chapter 31 Syslog MGS 3712 MGS 3012F User s Guide 260 ...
Страница 273: ...273 PART VI Troubleshooting Product Specifications Troubleshooting 275 Product Specifications 279 ...
Страница 274: ...274 ...
Страница 278: ...Chapter 36 Troubleshooting MGS 3712 MGS 3012F User s Guide 278 ...
Страница 285: ...285 PART VII Appendices and Index Common Services 287 Legal Information 291 Customer Support 295 Index 301 ...
Страница 286: ...286 ...
Страница 290: ...Appendix A Common Services MGS 3712 MGS 3012F User s Guide 290 ...
Страница 294: ...Appendix B Legal Information MGS 3712 MGS 3012F User s Guide 294 ...
Страница 308: ...Index MGS 3712 MGS 3012F User s Guide 308 ...