Overview: Bxm Cards; Figure 5-1 A Bpx Switch Network With Bxm Cards - Cisco BPX-BXM-155-8DX Installation And Configuration Manual

Overview: BXM Cards

The BXM card supports dynamic resource partitioning to support the conversion of PVCs to soft
permanent virtual circuits (SPVCs). This feature is described in Cisco SES PNNI Controller Software
Configuration Guide.
Overview: BXM Cards
A BXM card set, using Application Specific Integrated Circuit (ASIC) technology, provides high speed
ATM connectivity, flexibility, and scalability. The card set is comprised of a front card that provides the
processing, management, and switching of ATM traffic and a back card that provides the physical
interface for the card set.
An example of a BPX switch network provisioned with BXM-622 cards is shown in Figure 5-1.
The BXM card group includes:
•
•
•
BXM cards may be configured to support either trunk (network) or port (service access) interfaces.
BXM cards are compliant with ATM UNI 3.1 and Traffic Management 4.0 including ABR VSVD and
provide the capacity to meet the needs of emerging bandwidth driven applications.
For additional information on ATM Connections, refer to Chapter 21, Configuring ATM Connections.
The enhanced BXM-E card (version DX or EX) supports a higher connection density (32K) than either
the legacy BXM or regular BXM-E cards. Both DX and EX versions have the same connection density,
providing you with the ability to upgrade networks with the high connection density BXM-Es on trunk
side, port side, or a combination of trunks and ports. You can smoothly upgrade BXM cards to BXM-E
capabilities; see "Upgrade BXM to BXM-E Cards" in Appendix A, "Upgrade Information"
Figure 5-1
ATM
Hub
The BXM cards are designed to support all these service classes:
Cisco BPX 8600 Series Installation and Configuration
5-2
BXM-T3/E3
Available in 8 or 12 port versions with T3/E3 interfaces.
BXM-155
Available in 4 or 8 port versions with OC-3/STM-1 interfaces.
BXM-622
Available in 1 or 2 port versions with OC-12/STM-4 interfaces.
A BPX Switch Network with BXM Cards
ATM
Hub
OC-3 UNI OC-12 UNI
BPX
OC-12 UNI
BPX
DS3
OC-3 UNI
PoP
BPX
DS3
BPX
OC-12/STM-4
Backbone
DS3
BPX
DS3 OC-12 UNI
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 5 BXM Card Sets: T3/E3, 155, and 622
Access
Network