Cisco BPX 8650, Installation And Configuration Manual

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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 21-5 rt-VBR and nrt-VBR Connection Prompt Sequence
Configuring Resources
Qbin values on both ports and trunks used by rt-VBR connections and nrt-VBR connections can be
configured separately.
Trunk Queues for rt-VBR and nrt-VBR
A rt-VBR connection uses the rt-VBR queue on a trunk. It shares this queue with voice traffic. The
rt-VBR and voice traffic shares the default or user configured parameters for the rt-VBR queue. These
parameters are queue depth, queue CLP high and CLP low thresholds, EFCI threshold, and queue
priority.
A nrt-VBR connection uses the nrt-VBR queue on a trunk. The configurable parameters are queue depth,
queue CLP high and CLP low thresholds, EFCI threshold, and queue priority.
You can configure the the following Qbin values separately for rt-VBR and nrt-VBR classes on trunks
by using the
cnftrkparm command:
• For rt-VBR, the cnftrkparm command configures Q-depth rt-VBR and Max Age rt-VBR.
•
For nrt-VBR, the cnftrkparm command configures Q-depth nrt-VBR, Low CLP nrt-VBR, and High
CLP nrt-VBR.
rt-VBR or nrt-VBR
PCR(0+1)
%Util
CDVT(0+1)
FBTC (AAL5 Frame based traffic control, enable/disable)
SCR
MBS
Policing (1, 2, 3, 4, or 5)
For policing prompt:
1 = VBR.1
2 = VBR.2
3 = VBR.3
4 = PCR policing only
5 = policing off
Note: BW allocation = (PCR)x(%Util)
35748
1
1
2
2
Trunk cell routing
restrict (Y/N) [Y]
For rt-VBR, trunk cell routing
is automatically restricted to
include only ATM trunks