21-14
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
Chapter 21 Configuring ATM Connections
ATM Connection Flow
Figure 21-4 shows an example of traffic shaping. In this example, port 1 is configured to perform traffic
shaping.
Note
Regardless of class of service, the ATM cells pass through the VC queues before leaving the card
when traffic shaping is enabled.
Figure 21-4 shows port 2 is not configured for traffic shaping, and only the ABR traffic with FCES (flow
control external segment) passes through the VC queues.
Figure 21-4 Traffic Shaping Example
Traffic Shaping Rates
Traffic shaping rates are listed in Table 21-7.
Traffic
shaping
enabled
Port 1
No traffic
shaping
Port 2
ABR/UBR Qbin
VBR Qbin
CBR Qbin
ABR/UBR Qbin
VBR Qbin
CBR Qbin
12150
VC queues
CBR
CBR
VBR
VBR
UBR
UBR
ABR
ABR
ABR (with FCES)
Table 21-7
Traffic Shaping Rates
Service Type
MCR
PCR
CBR
PCR
PCR
rt-VBR and nrt-VBR
SCR * %Util
PCR
UBR
0
PCR
ABR
MCR * %Util
PCR
Summary of Contents for BPX 8650
Page 49: ...P A R T 1 The BPX Switch ...
Page 50: ......
Page 159: ...P A R T 2 Installation ...
Page 160: ......
Page 273: ...P A R T 3 Initial Configuration and Network Management ...
Page 274: ......
Page 311: ...P A R T 4 Configuring Connections ...
Page 312: ......
Page 487: ...P A R T 5 Troubleshooting and Maintenance ...
Page 488: ......
Page 533: ...P A R T 6 BPX Specifications ...
Page 534: ......
Page 555: ...P A R T 7 Appendices ...
Page 556: ......