Alcatel-Lucent 7750 SR OS, Interface Configuration Manual

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Port Features
Page 56 7750 SR OS Interface Configuration Guide
Exercise Command
The exercise command is only supported in the bi-directional mode of the 1+1 architecture. The
exercise command is specified in the tools>perform>aps>force>exercise context and exercises
the protection line by sending an exercise request over the protection line to the tail-end and
expecting a reverse request response back. The switch is not actually completed during the
exercise routine.
Supported APS Port Configurations
All SONET/SDH MDAs use SONET/SDH physical layer transport but first-generation
channelized MDAs support the APS functionality.
Table 17 displays examples of the port types
that can be paired to provide APS protection. Both ports must be the same type and must be
configured at the same speed.
a
The working and protect channel lines are the same speed (based on the APS group speed
configuration).
Table 17: Supported APS Port Configurations
MDA Type
M
16-
O
C
12/
3
M
8
-O
C
12/3
M
16-
O
C
3
M8
-O
C3
M4
-O
C4
8
M2
-O
C4
8
M
1
-O
C
192
M4
-A
T
M
O
C
1
2
/3
M
16-
A
T
M
O
C3
M
4
-CHOC3-AS
-SFP
M
1
-CHOC12-A
S
-S
F
P
M16-OC12/3 a a
M8-OC12/3 a a
M16-OC3 • •
M8-OC3 • •
M4-OC48 • •
M2-OC48 • •
M1-OC192 •
M4-ATMOC12/3 a
M16-ATMOC3 •
M4-CHOC3-AS-SFP •
M1-CHOC12-AS-SFP
•