Cisco SCE 8000 Installation And Configuration Manual page 97

Chapter 6 Cabling the Line Ports and Completing the Installation
MGSCP Connectivity Examples
The First Step-Ordering the EC Ports, page 6-5
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Single Router MGSCP Connectivity, page 6-5
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Single Router with N+1 Redundancy MGSCP Connectivity, page 6-5
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Dual Routers MGSCP Connectivity, page 6-6
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Dual Routers with N+1 Redundancy MGSCP Connectivity, page 6-7
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The First Step-Ordering the EC Ports
This section explains how to order the EC ports and assign them to links. This example is the basis for
all following examples:
Sort the EC ports in an ascending order by their physical interface numbers. Take the following EC
1.
interfaces as an example:
–
–
Order the ports in subscriber/network pairs according to their order in the ECs (the first port in EC1
2.
(subscriber side) is paired with the first port in EC2 (network side) and so on):
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–
–
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Single Router MGSCP Connectivity
Four links require two Cisco SCE 8000 platforms. Connect the ordered pairs, each pair of EC ports to a
pair of Subscriber/Network ports in a Cisco SCE 8000 platform:
Cisco SCE 8000 #1: Links 1 and 2
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Cisco SCE 8000 #2: Links 3 and 4
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The actual connections might look like this:
• S=0/1, Cisco SCE 8000 #1 3/0/0
• N=2/2, Cisco SCE 8000 #1 3/1/0
S=0/2, Cisco SCE 8000 #1 3/2/0
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N=3/1, Cisco SCE 8000 #1 3/3/0
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S=1/3, Cisco SCE 8000 #2 3/0/0
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N=3/2, Cisco SCE 8000 #2 3/1/0
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S=1/5, Cisco SCE 8000 #2 3/2/0
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N=3/4, Cisco SCE 8000 #2 3/3/0
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Single Router with N+1 Redundancy MGSCP Connectivity
To achieve N+1 redundancy, add one extra SCE platform as the standby platform. Also, add two more
ports on each EC to be used as standby ports. In this case, use three SCE platforms, two on the traffic
links and one for redundancy, which would be connected to the standby ports.
EC1 (subscriber side): 0/1, 0/2, 1/3, 1/5
EC2 (network side): 2/2, 3/1, 3/2, 3/4
Link 1. S=0/1, N=2/2
Link 2. S=0/2, N=3/1
Link 3. S=1/3, N=3/2
Link 4. S=1/5, N=3/4
Connecting the Line Ports to the Network
Cisco SCE8000 GBE Installation and Configuration Guide
6-5