Specifications

5-7
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 5 BXM Card Sets: T3/E3, 155, and 622
BXM Capabilities
If these values are less than the minimum values supported on a given card, the command line interface
will not allow you to set them until you have disabled policing. (A prompt will let you know about this
limitation.)
Please refer to Table 5-1 for a list of cards that are supported by this feature and their performance
specifications.
Policing must be disabled to support 6 cps and above for all BXM/UXM interface types.
Virtual Interfaces
• VPI/VCI used to identify virtual connection
• Support for up to 32 virtual interfaces per card, each with 16 CoS queues
• Virtual Interface parameters
– Physical port (trunk or access)
– Peak Service Rate (PSR)
– Minimum Service Rate (MSR)
– Maximum resource allocation
Virtual Ports
Virtual ports support hierarchical egress traffic shaping at more than one level on a single UNI port,
combining virtual path traffic shaping and associated virtual connections. This feature allows one or
more Virtual Ports per Physical Port interface.
A maximum of 31 virtual ports are available per BXM card. Each port supports all autoroute traffic
types currently supported by physical ports. Up to 255 virtual ports are supported per BPX node (with
BCC-4-128) and 144 ports (with BCC-3-64).
Table 5-3 Supported Cards and Performance Specifications
Card Name Card Types Minimum SCR and PCR, UPC/NPC Values
IGX-UXM T1/E1 6 cps
IGX-UXM IMA 6 cps
IGX-IUX T3/E3 12 cps
IGX-UXM OC3/STM-1 50 cps
BPX-BXM T3/E3 12 cps
BPX-BXM OC3/STM-1 50 cps
BPX-BXM OC12/STM-4 50 cps
Note: The policing accuracy is always within 1%. The maximum SCR and PCR policing values are the same as the line rate.