Datasheet

Data Sheet
© 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 4 of 13
Table 1. Protection Formats
Protection Type Capabilities Figure
Unprotected client
and line
No client terminal interface, transponder card, or DWDM line protection. The client signal
is transported over a single unprotected transponder card. This configuration is suitable
for transporting client payloads over a DWDM network that is being protected via
unidirectional path switched ring/subnetwork connection protection (UPSR/SNCP) or
bidirectional line switched ring/multiplex section shared protection ring (BLSR/MS-SPR)
protocols.
2
1+1 protected client Enables protection for both the client terminal interfaces and the transponder cards. Two
client terminal interfaces operating 1+1 automatic protection switching/multiplex section
protection (APS/MSP) switching are passed through 2 transponder cards, with switching
managed between client terminal equipment interfaces.
3
Y-cable client
interface
Provides transponder equipment protection without client terminal equipment interface
protection. A single client interface is split to 2 transponder cards using a Y-protection
device.
4
Figure 2. Unprotected Configuration
Figure 3. 1+1 Configurations
Figure 4. Y-Cable Configuration