Multi-Gigabit Service Control Platform (Mgscp) Topology; Types Of Sce Platform Redundancy - Cisco SCE 8000 Installation And Configuration Manual

Chapter 3 Cisco SCE 8000 Topology and Topology-Related Parameters

Multi-Gigabit Service Control Platform (MGSCP) Topology

In this topology, multiple Cisco SCE 8000 platforms are connected to a Cisco 7600 Series router, which
acts as a dispatcher between the platforms (see
(ECs), one for the subscriber side and one for the network side, that perform load balancing for the SCE
platform traffic. Traffic enters the first router, is distributed between the SCE platforms by the
subscriber-side EC and then returns to the router so it can be forwarded to its original destination.
Figure 3-7
There are several variables to be considered in the MGSCP topology. Two of the main factors to be
considered include:
•
•

Types of SCE Platform Redundancy

•
Basic MGSCP Topology
Subscribers
Types of SCE Platform Redundancy, page 3-9
Redundant Cisco 7600 Series Router, page 3-10
All Active
All ports in the EC and all SCE platforms are active. If there is a failure in one of the SCE platforms,
the links on the related ports in the EC go down and the EC automatically excludes it from the load
distribution. The load then is distributed between the remaining active SCE platforms.
Because the Cisco SCE 8000 supports two links, this configuration requires one SCE platform per
two links (two EC ports).
Multi-Gigabit Service Control Platform (MGSCP) Topology
Figure 3-7). The router contains two EtherChannels
Cisco 7600
40Gig
4+1
SCE8000s
Cisco SCE8000 GBE Installation and Configuration Guide
Internet
3-9