DLP-
553
363-206-295
1997
December
1,
Issue
21
of
16
Page
rtrv-state-path command
indicates Ring 2 active.
sw-path-sts1 or sw-path-vt1
used to switch path.
IN
OUT
IN
OUT
MAIN 2
OLIU
MAIN 1
OLIU
A
B
C
IN
OUT
IN
OUT
MAIN 2
OLIU
MAIN 1
OLIU
A
B
C
EC-1
EC-1
Ring 1
Ring 2
Ring 1
Ring 2
rtrv-state-path command
indicates Ring 2 active.
sw-path-sts1 or sw-path-vt1
used to switch path.
RING 2 ACTIVE
RING 2 ACTIVE
IN
OUT
IN
OUT
MAIN 2
OLIU
MAIN 1
OLIU
A
B
C
IN
OUT
IN
OUT
MAIN 2
OLIU
MAIN 1
OLIU
EC-1
EC-1
A
B
C
CO 3
CO 4
Ring 2
Ring 1
Ring 1
Ring 2
rtrv-state-path command
indicates Ring 1 active.
sw-path-sts1 or sw-path-vt1
used to switch path.
RING 1 ACTIVE
RING 1 ACTIVE
MAIN 2
OLIU
MAIN 1
OLIU
A
B
C
IN
OUT
IN
OUT
RT 3
RING 1 ACTIVE
Ring 1
Ring 2
Ring 2
Ring 1
CO 1
CO 2
Ring 2
Ring 1
Ring 1
Ring 2
RING 2 ACTIVE
RING 2 ACTIVE
IN
OUT
IN
OUT
IN
OUT
IN
OUT
MAIN B2
OLIU
MAIN B1
OLIU
A
B
C
Ring 1
Ring 2
Ring 1
Ring 2
RING 1 ACTIVE
RING 1 ACTIVE
OC-12 path switched ring
MAIN B1
OLIU
MAIN B2
OLIU
A
B
C
IN
OUT
IN
OUT
RT 2
D
MAIN B1
OLIU
MAIN B2
OLIU
A
B
C
IN
OUT
IN
OUT
RT 1
D
D
MAIN B2
OLIU
MAIN B1
OLIU
A
B
C
D
IN
OUT
IN
OUT
MAIN B2
OLIU
MAIN B1
OLIU
A
B
C
D
IN
OUT
IN
OUT
MAIN B2
OLIU
MAIN B1
OLIU
A
B
C
D
DS1, DS3, EC-1
RING 2 ACTIVE
MAIN 1
OLIU
MAIN 2
OLIU
A
B
C
IN
OUT
IN
OUT
RT 4
Ring 2
Ring 1
DS1, DS3, EC-1
Ring 2
Ring 1
rtrv-state-path command
indicates Ring 1 active.
sw-path-sts1 or sw-path-vt1
used to switch path.
Network
Interworking
Ring
Dual
in
Test
Transmission
DS3
of
Example
9.
Figure