Ethernet Circuit Configurations; Point-To-Point Ethernet Circuits - Cisco 15454-TCC - Network Processor Card Operation Manual

Ethernet Circuit Configurations

.
Table 9-4
15327
Single-Card
six STS-1s
two STS 3cs
one STS 6c
one STS 12c
9.3 Ethernet Circuit Configurations
Ethernet circuits can link ONS nodes through point-to-point, shared packet ring, or hub and spoke
configurations. Two nodes usually connect with a point-to-point configuration. More than two nodes
usually connect with a shared packet ring configuration or a hub and spoke configuration. This section
includes procedures for creating these configurations and also explains how to create Ethernet manual
cross-connects. Ethernet manual cross-connects allow you to cross connect individual Ethernet circuits
to an STS channel on the ONS 15454 optical interface and also to bridge non-ONS SONET network
segments.
Before making Ethernet connections, choose a circuit size from STS-1, STS-3c, STS-6c, or STS-12c.
Note
When making an STS-12c Ethernet circuit, Ethernet cards must be configured as single-card
Note
EtherSwitch. Multi-card mode does not support STS-12c Ethernet circuits.

9.3.1 Point-to-Point Ethernet Circuits

The ONS 15454 can set up a point-to-point (straight) Ethernet circuit as Single-card or Multicard.
Multicard EtherSwitch limits bandwidth to STS-6c of bandwidth between two Ethernet circuit points,
but allows adding nodes and cards and making a shared packet ring. Single-card EtherSwitch allows a
full STS-12c of bandwidth between two Ethernet circuit points.
Cisco ONS 15454 Installation and Operations Guide
9-6
ONS 15454 and ONS 15327 Ethernet Circuit Combinations
15327 Multicard
three STS-1s
one STS 3c
15454
Single-Card 15454 Multicard
one STS 12c six STS-1s
two STS 6cs two STS 3cs
one STS 6c and one STS 6c
two STS 3cs
one STS 6c and
six STS-1s
four STS 3cs
two STS 3cs and
six STS-1s
twelve STS-1s
Chapter 9 Ethernet Operation
November 2001