21-18
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 21 Configuring ATM Connections
rt-VBR and nrt-VBR Connections
Example of cnfcls2, for NRT-VBR
pubsbpx1
TN
silves:1
BPX 8620
9.2.2G
July 16 1999 10:42 PDT
ATM Connection Classes
Class:
2
Type: nrt-VBR
PCR(0+1)
% Util
CDVT(0+1)
AAL5 FBTC
SCR
1000/1000
100/100
10000/10000
n
1000/1000
MBS
Policing
1000/1000
3
Description: "Default nrt-VBR 1000 "
This Command: cnfcls atm 2
Enter class type (rt-VBR, nrt-VBR, CBR, UBR, ABRSTD, ABRFST, ATFR, ATFST, ATFT,
ATFTFST, ATFX, ATFXFST):
Connection Criteria
•
Default utilization for voice traffic is 100 percent.
•
For rt-VBR connections, all nodes must be running at least Rel. 9.2.20. The user interface will
block the addition of rt-VBR connections in a network running pre-9.2.20 SWSW.
•
BXM and UXM (IGX switch) cards can terminate rt-VBR connections and support rt-VBR queues.
•
On the BPX switch, BXM and BNI trunks support rt-VBR queues
•
On the IGX switch, only UXM trunks support rt-VBR queues.
•
You can add both rt-VBR and nrt-VBR connections.The parameter prompts are the same for both
rt-VBR and nrt-VBR, except for Trunk Cell Routing Restriction prompt. (For rt-VBR connections,
the "Trunk Cell Routing Restriction" prompt will not display because rt-VBR traffic should be
routed over only ATM trunks; rt-VBR traffic should not be routed over FastPacket trunks.)
•
With release 9.3, rt-vbr is supported on 2- and 3-segment connections, but only on IGX feeders and
UXM endpoints. For example: the UXM card on the IGX switch (2 segment: CPE to IGX feeder
UXM to BXM to BXM to CPE) or (3 segment: CPE to IGX feeder UXM to BXM to BXM to IGX
feeder UXM to CPE).
Configuring Connection Policing
The BPX Command Line Interface (CLI) and Cisco WAN Manager accept the same connection policing
and bandwidth parameters as in previous releases for both rt-VBR and nrt-VBR service.
The displayed addcon parameter prompts for both rt-VBR and nrt-VBR connections are the same:
•
PCR
•
%util
Содержание BPX 8600 Series
Страница 43: ...P A R T 1 The BPX Switch ...
Страница 44: ......
Страница 151: ...P A R T 2 Installation ...
Страница 152: ......
Страница 261: ...P A R T 3 Initial Configuration and Network Management ...
Страница 262: ......
Страница 291: ...P A R T 4 Configuring Connections ...
Страница 292: ......
Страница 481: ...P A R T 5 Troubleshooting and Maintenance ...
Страница 482: ......
Страница 531: ...P A R T 6 BPX Specifications ...
Страница 532: ......
Страница 563: ...P A R T 7 Appendices ...
Страница 564: ......
Страница 624: ...Glossary 24 Cisco BPX 8600 Series Installation and Configuration Release 9 3 0 Part Number 78 10674 01 Rev D0 July 2001 ...
Страница 630: ...Index 6 Cisco BPX 8600 Series Installation and Configuration Release 9 3 0 Part Number 78 10674 01 Rev D0 July 2001 ...