E-Series Shared Packet Ring Ethernet Circuits; E-Series Hub-And-Spoke Ethernet Circuit Provisioning - Cisco ONS 15454 SDH Configuration Manual

Chapter 23 E-Series and G-Series Ethernet Operation

E-Series Shared Packet Ring Ethernet Circuits

A shared packet ring allows additional nodes (besides the source and destination nodes) access to an
Ethernet STS circuit. The E-Series card ports on the additional nodes can share the circuit's VLAN and
bandwidth.
the example.
Figure 23-21
Backbone router
Access router

E-Series Hub-and-Spoke Ethernet Circuit Provisioning

The hub-and-spoke configuration connects point-to-point circuits (the spokes) to an aggregation point
(the hub). In many cases, the hub links to a high-speed connection and the spokes are Ethernet cards.
Figure 23-22
Figure 23-21 illustrates a shared packet ring. Your network architecture might differ from
Shared Packet Ring Ethernet Circuit
ONS Node
Access router
illustrates a hub-and-spoke ring. Your network architecture might differ from the example.
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
SONET/SDH Ring
ONS Node
ONS Node
Access router
E-Series Shared Packet Ring Ethernet Circuits
Access router
Access router
Access router
SONET
Ethernet
23-25