Enhanced Bxm; Table 5-4 Enhanced Bxm Cards - Cisco BPX-BXM-155-8DX Installation And Configuration Manual

Enhanced BXM

Enhanced BXM
The Enhanced BXM cards improve the current BXM cards by delivering even more cost-effective ATM
switching and traffic management. The Enhanced BXM cards come in EX and DX versions, both
including these key feature enhancements:
•
Table 5-4
Model Number
BPX-BXM-155-8DX
BPX-BXM-155-8D
BPX-BXM-155-4DX
BPX-BXM-155-4D
BPX-BXM-622-2DX
BPX-BXM-622-2D
BPX-BXM-622-DX
BPX-BXM-E3-12EX
BPX-BXM-E3-12E
BPX-BXM-E3-8E
BPX-BXM-T3-12EX
BPX-BXM-T3-12E
BPX-BXM-T3-8E
•
Cisco BPX 8600 Series Installation and Configuration
5-8
Support a greater cell storage capacity and a greater number of connections
The cell memory has been increased on the Enhanced BXM cards to support even greater cell
–
buffering to maximize bandwidth efficiency and cell/frame throughput in wide area networks.
Enhanced BXM cards support up to 12 ATM interfaces per card at speeds from T3/E3 to
–
OC-12/STM-4.
The ACP processor memory is quadrupled
–
ACP Processor memory is 64 Mbyte and the flash memory is doubled to 4 Mbyte on all
Enhanced BXM cards to allow more headroom for feature addition and enhancement in the
future.
With a more powerful processor and more VC configuration memory in ATM cell switching
subsystem, the EX and DX versions of Enhanced BXM cards meet the ever increasing demand for
greater number of connections per interface. For each PVC terminating on the card, Enhanced
BXM supports a full range of stats for usage-based billing at cell and frame levels, cell policing,
EFCI marking, ABR RM cells, and OAM cells. Supporting a greater number of connections per
interface translates to supporting a greater user density more cost effectively.
This table provides detailed information about the number of connections and cell buffer size
supported on different types of Enhanced BXM card:
Enhanced BXM Cards
Physical
Interface
OC-3c/STM-1
OC-3c/STM-1
OC-3c/STM-1
OC-3c/STM-1
OC-12c/STM-4 2
OC-12c/STM-4 2
OC-12c/STM-4 1
E3
E3
E3
T3
T3
T3
Support an improved traffic shaping granularity for each virtual interface (VI) to allow any desired
shaping rate.
Chapter 5
Number of
Ports per Ingress Cell
Card Buffer (cells)
8 512K
8 256K
4 256K
4 128K
512K
256K
256K
12 256K
12 128K
8 128K
12 256K
12 128K
8 128K
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
BXM Card Sets: T3/E3, 155, and 622
Maximum
Number of
Egress Cell Connections
Buffer (cells) per Card
512K 32K
256K 16K
256K 32K
256K 16K
512K 32K
256K 16K
256K 32K
512K 32K
256K 16K
128K 16K
512K 32K
256K 16K
128K 16K