Chapter 1 Product Technology

Optical Channels

Figure 1-2 Optically-fiber protected channels in an ONS 15200 system

 

 

 

 

 

 

 

SELECTOR

 

 

DIVIDER

 

 

 

 

 

 

 

OPTICAL

 

 

 

 

 

 

 

 

 

 

 

 

 

CHANNEL

 

 

 

 

 

 

 

A

 

CLIENT INPUT

 

 

 

 

 

 

 

 

CLIENT OUTPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIGNAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIGNAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPTICAL

 

 

 

 

 

 

CHANNEL

 

 

 

 

 

 

B

 

 

 

 

ONS 15200

LEGEND

ONS - Optical network system

54628

Client-layer protection schemes for the ONS 15200 are:

SONET/SDH ADM rings—Traffic travels in two directions between any two nodes. If one route fails, the alternate route continues to transport the traffic.

Client-layer 1+1 APS—Two separate connections exist between two client-layer interfaces. One of the connections is standby and is used only when the active connection fails.

Layer 3 load sharing—Two routes transport traffic from one client to a dual home node (see Chapter 2, “Product Configurations” for a description of the dual home node configuration). The routes are used below their maximum capacity. If one of the two routes fails, the traffic shifts to the other route.

1.2.3Software Configurable Protection

In Release 1.1, the 2R/3R (unclocked/clocked) Client Layer Interface Port (CLIP) module is user configurable for unprotected or fiber protected operation.

Cisco ONS 15200 Product Description

 

78-13766-01

1-3

 

 

 

Page 19
Image 19
Cisco Systems manual Software Configurable Protection, Optically-fiber protected channels in an ONS 15200 system