S.CON1M/MA System
18
12- MA™ Concept and Functions
The MA™ (Micro Agent) is an on-chip management system providing the monitoring
and management of remote access devices without the need of an expensive SNMP
agent module.
The MA™ does not require an IP address.
The chip is embedded in both the remote unit, mostly referred to as a CPE, and in the
Master Unit (normally installed in the Node Unit). A unique secured in-band
management protocol allows the two devices communicating between themselves
over the fiber link bi-directionally,
therefore both monitoring and management
commands can be remotely performed on the CPE
. Control frames are not
forwarded to data ports.
Micro Agent Basic System Block Diagram
Master Unit (S.CON1M/MA) Remote Device (CPE Unit)
When
MA™
enabled devices are deployed at both ends of the fiber link, they
automatically learn about each other’s presence and begin providing full remote
management functions within 20 to 30m.seconds from the moment the link has been
established. However, if an
MA™
enabled devices cannot complete such handshake
within that time, it concludes that the opposite end device is not
MA™
enabled,
subsequently it bypasses its special functions and operates like a standard, straight
forward access device. Therefore there are no interoperability issues between network
devices which have
MA™
chips embedded in them and those that have not.
The following management functions are available for the H.CON/MA unit attached to the
S.CON1M/MA device:
•
F/O Link Status
and changes
•
T/P link Status
and changes
•
Fiber Link Integrity
: continuous (every 10ms) verification of the fiber link
•
Loop –Back
test and Extended Loop Back (ELB)
•
Power On
: CPE Power On; equivalent to CPE ‘s log-into the network
•
Set A/N mode
: CPE’s TP port may be set to Auto-Negotiation or non A/N mode
•
Set speed Mode:
select 10 or 100Mbps on the TP port
•
Set Duplex Mode
: allows forcing of HDX or FDX onto the TP port
•
Death Gasp
: alerting the center of a power failure
•
Rate Limiting
: allows supplying user with different service programs, from
256Kb to 100Mbps (up and down streams)
•
Fault Propagation
(F >> T) enable / disable
•
SLE
(Subscriber Link Emulation) enable /disable
•
Reset
the device and/or
Restore
the device’s default configuration
Optical Link
TP
PH
Micro
Agent
Micro
Agent
SNMP
Agent
TP
Fiber
Phy
Fiber
Phy
TP
Phy
TP
Network Interface
Data
Status & Control
