Cisco BPX 8600 Series, Руководство по установке и настройке

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Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 27 Configuring BME Multicasting
Introduction
BME Features
• The BME is a two-port OC-12 card
• Supports up to 1000 multicast groups
•
Supports up to 8064 connections, at 4032 per port. It can support the following combinations:
– 1000 roots with 8 leaves in each multicast group
– 100 roots with 80 leaves in each multicast group
–
2 roots with 4000 leaves in each multicast group
– or any other such combination.
• Supports CBR, UBR, VBR, and ATFR connections
•
Hot standby
BME Requirements
•
Firmware of type BMEMK, where K is the model number for BME.
• upln is used to bring up line 1 and line 2.
• upport is used to bring up port 1 and port 2, respectively.
BME Restrictions
• BMEs can function in the following two BPX node configurations:
–
BCC-4s
– BXMs
• VC frame merge is not currently supported
Address Criteria
• The VPI of a multicast connection indicates the multicast group to which it belong.
•
The VPI.VCI assigned to a multicast connection is unique for that card.
• If the VCI = 0 for a multicast connection, this indicates a root connection.
• If the VCI is not = 0 for a multicast connection, this indicates a leaf connection.
•
If the root connection of a given multicast group is added to port 1 of the two port card, then the
leaves belonging to that multicast group must be added to port 2, and vice versa.
For example, if 12.1.50.0 is added on port 1, then the leaves should be:
12.2.50.50
12.2.50.100
12.2.50.101 and so on.
Similarly, if a root 12.2.60.0 is added on port 2, then the leaves should be
12.1.60.101
12.1.60.175, and so on.