Mellanox Technologies MetroX TX6240, Hardware User Manual

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Interfaces Rev 1.1
Mellanox Technologies 49
This management channel may be multiplexed as an extra OSC wavelength by the optical MUX/
DEMUX. The MEX6200 supports two OSCs for multi-chassis application and for remote man-
agement with facility protection. The facility protection is for the management network when the
two management ports are active and there is more than one management route between the
nodes. In point-to-point topology without protection, only one OSC port is needed on each side
(it can be either of the two). For a protected point-to-point or ring topology, both OSC ports
should be used.
The MEX6200 uses the standard Rapid Spanning Tree Protocol (RSTP) to uniquely determine
the route for the management traffic between the nodes, and to dynamically change the manage-
ment route should a facility failure occur.
The MNG ports accept optical or copper (electrical) SFP modules.
3.2.3 Facility Protection for MEX6200
In protected configuration, the MEX6200 supports unidirectional, non-revertive, 1+1 facility
protection.
• Unidirectional: Each side selects the Active line independently.
• Non-revertive: To reduce the number of traffic hits, no switching occurs if the traffic is
restored on the Standby line while there are no faults on the Active line.
• 1+1 facility: The transmitted traffic is copied to both fibers.
• The MEX6200 provides two types of facility protection:
• Transponder protection: Protects the optical fiber and transponder uplink transceiver.
• Fiber protection: Protects the optical fiber.
3.2.3.1 Transponder Protection
The transponder protection ensures service continuity in case of a fiber break or a failure of an
uplink transceiver.
The transponder protection is usually provided by the MEX6200 with two MUX/DEMUX mod-
ules. See the following figure.
Table 21 - MNG Port Specifications
Specification Requirement
Fiber/cable type • Optical SFP: Single mode or multi-mode
• Copper SFP: Twisted pair
Wavelength • Single mode:
CWDM: 1290 nm or 1310 nm
DWDM: 1490 nm or 1510 nm
• Multi-mode: 850 nm
Fiber size 2 mm optical fiber
Connector type Optical SFP: LC
Copper SFP: RJ-45
Port type Management