C-8
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Appendix C ATM: An Overview
Figure C-7
BAM, CAM, and SAM Configurations
FastPacket Adaptation to ATM
A specialized adaptation of particular interest to users of Cisco equipment is the adaptation of IPX
switch FastPackets to ATM cells. A large number of narrowband IPX switch networks currently in
existence efficiently carry voice, video, data, and Frame Relay. A means must be provided to allow
these networks to grow by providing a migration path to broadband.
Because FastPackets are already a form of cell relay, the adaptation of FastPackets to ATM cells is
relatively simple.
CAM—
Cloud Addressing
Mode
UNI
VPI = User Programmed
VCI = Node Derived
Address
IGX switch to IGX switch connections over
networks using ATM switches that switch on
VPI only. VPI is manually programmed by
user. Terminating switch converts VCI address
to FastPacket address.
SAM—
Simple Addressing
Mode
UNI
VPI/VCI = User
Programmed
IGX switch to IGX switch connections over
networks using ATM switches that switch
where all routing is manually programmed by
user, both VPI and VCI.
Table C-2
ATM Cell Addressing Modes
Addressing Mode
Hdr. Type
Derivation of VPI/VCI
Where Used
BAM
IGX
BTM
IPX
AIT
BAM
IPX
AIT
BPX
BNI
CAM
IPX
AIT
IPX
AIT
SAM
Note: IPX with AIT card are interchangeable with IGX with BTM card in this diagram.
IPX
AIT
IGX
BTM
ATM cloud
VP switch
ATM cloud
VP/VC switch
H8150
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 ...