Cisco ONS 15454 DWDM - Any-To-Any Rings

18-3
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
August 2005
Chapter 18 Network Reference
18.2.3 Any-to-Any Rings
is regenerated through the other hub node. Multihop traffic can be provisioned on this ring. From a
transmission point of view, this network topology is similar to two or more point-to-point links with
OADM nodes.
Figure 18-2 Multihubbed Ring
18.2.3 Any-to-Any Rings
The any-to-any ring topology (Figure 18-3) contains only reconfigurable OADM (ROADM) nodes, or
ROADM nodes with Optical Service Channel (OSC) regeneration or amplifier nodes. This topology
potentially allows you to route every wavelength from any source to any destination node inside the
network.
See the “17.1.4 ROADM Node” section on page 17-8 for more information.
Hub
Hub
Passive OADM
Line amplifier
90998
Amplified OADM Passive OADM
Amplified OADM
OSC
OSC