Cell Replication Stats; Adding Connections; Figure 27-1 Replication Of A Root Connection Into Three Leaves; Figure 27-2 Example Of Traffic, One Root And Two Leaves - Cisco BPX-BXM-155-8DX Installation And Configuration Manual

BME Operation

Figure 27-1 Replication of a Root Connection into Three Leaves

root

Cell Replication Stats

As an example of how traffic appears on the BME, if there is one root at port 1 with two leaves at port
2, and traffic is passed on the root at 500 cells/sec, then one should see an egress port stat of 1000
cell/sec on port 1 and an ingress port stat of 1000 cells/sec on port 2, as shown in Figure 27-2.

Figure 27-2 Example of Traffic, One Root and Two Leaves

root 500 cells/sec

Adding Connections

Two multicasting groups are shown in Figure 27-3. For purposes of the illustration only a few leaves
are shown for each connection. However, as described previously, each multicasting group could
contain up to 8064 connections.
In this example, the two connections with a VCI of 0 each define a multicasting root connection. Their
VPI defines a broadcasting group.
One group is defined by 2.1.70.0, where the VCI of zero defines the root connection to a BME, and the
VPI of 70 defines a group. All the leaves in that group are of the form 2.2.70.x.
The other group is defined by 2.2.80.0, where the VCI of zero defines the root connection to a BME,
and the VPI of 80 defines a group. All the leaves in that group are of the form 2.1.80.x.
Cisco BPX 8600 Series Installation and Configuration
27-4
BPX Switch E
BPX Switch A
BPX Switch B
BME
1000 cells/sec
BPX Switch G
BPX
Switch F
BPX Switch C
Port 1
leaf 1
500 cells/sec
Port 2
leaf 2
500 cells/sec
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 27 Configuring BME Multicasting
leaf 3
BPX Switch D
leaf 2
leaf 1