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Cisco ONS 15530 Configuration Guide and Command Reference
78-14227-01, Cisco IOS Release 12.1(10)EV2
Chapter7 Configuring APS
About Switch Fabric Based Line Card Protection
protection(0): Transparent7/0/0 (ACTIVE - UP), Wave7/0 (UP)
: channel request: no-request
: switchover count: 2
: last switchover: 15 hours, 14 minutes
working...(1): Transparent4/0/0 (STANDBY - UP), Wave4/0 (UP)
: channel request: no-request
: switchover count: 3
: last switchover: 14 hours, 41 minutes
About Switch Fabric Based Line Card Protection

The Cisco ONS 15530 provides protection for cross connections through the switch fabric. Switch fabric

based line card protection is supported on systems with one or two swi tch fabrics.

The aggregated signals from the multiplexing line cards cross connect through the switch fabric to either

a 10-Gbps ITU trunk card or to a 10-GE uplink card. In switch fabric based line card protection, the

system sets up a protection cross connection through the switch fabric to a second 10-Gbps ITU trunk

card or a 10-GE uplink card (see Figure 7-6).

Figure7-6 Switch Fabric Based Line Card Protection with Redundant Switch Fabrics

Switch fabric based line card protection protects against facility failures and failures in 10-Gbps ITU

trunk cards and 10-GE uplink cards.

10-port ESCON card ITU trunk card
ITU trunk card
CPU and
switch
module
OADM
modules
West
East
Optical
cross connect
Active signal
Standby
signal
10-GE ITU
transceiver
2.5 -Gbps
aggregated
signal
SRC
LRCLRC
LRC
79304
Electrical backplane
connection
10-Gbps
10-Gbps