OptiX OSN 7500
II/7500/ OSN 3500 /1500 Configuration Guide: Creating the Network, the second steps: Configuring the Equipment Level Protection.
The OptiX OSN equipment supports various equipment level protection schemes,
including the
TPS, 1+1 board
protection, board level protection, and port protection.
You can set the
main/slave relationship and revertive mode for the corresponding ports on two identical
boards to provide 1+1 protection for the ports.
Prerequisites
You must be an NM
user with NE operator authority or higher.
Background Information
The restrictions
on the application of the DLAG function are as follows:
1 The equipment
configured with a DLAG must be interconnected with the equipment that
runs the LACP
protocol. If any intermediate equipment exists between the two sets of
equipment
configured with DLAGs, the intermediate equipment must transparently
transmit the LACP
protocol packets.
2 The main/slave
relationship can be configured only for two identical boards. Specifically,
the port on the
slave board is used to protect only the corresponding port on the main board.
3 One DLAG can contain
a maximum of two ports, which must have the same port number.
4 The slave board
cannot be configured with services (including Ethernet services, LAG,
cross-connections,
LPT, and paths bound to VCTRUNK ports).
5 The bandwidth
of the slot where the slave board is installed must be equal to or higher than the
bandwidth of the slot where the main board is installed.
6 One Ethernet
board cannot be configured with the BPS, PPS, and DLAG protection at the same
time.
7 The port
configured into a DLAG must be an external physical Ethernet port. In addition,
one port cannot
be configured into a DLAG and a LAG at the same time.
8 During the
configuration of a DLAG, the attributes of the slave port automatically become consistent
with the attributes of the main port.
9 Do not perform
a selfloop on an external physical port that needs to be configured into a
DLAG.
10 If Ethernet
services are already created, ensure that the level of the timeslots bound to a
path is consistent with the level of the configured cross-connections.
11 If Ethernet
services are already created, ensure that the external physical port that needs
to be configured into a DLAG does not share the same VCTRUNK port with other
external physical ports.
12 One external
physical port of a DLAG may correspond to multiple VCTRUNK ports; one VCTRUNK
port, however, can correspond to only one external physical port of a DLAG.
Therefore, the
external physical ports of different DLAGs cannot be configured into one
virtual bridge
(VB), because one VCTRUNK may correspond to multiple external physical
ports in such a
case.
Procedure
Step 1 In the NE Explorer, select the required NE and choose Configuration
> Ethernet Distributed Link Aggregation Management from the Function Tree.
Step 2 Click New.
Step 3 In the Create Distributed Link Aggregation Group dialog box that is
displayed, set the attributes and ports of the DLAG.
Step 4 Click OK.
Step 5 Create a DLAG on the Huawei SDH interconnected NE at the opposite end.
----End
Follow-up Procedure
1. Change of Revertive Mode of a DLAG
Change of
Revertive Mode does not affect the services carried by the DLAG.
2. Deletion of a DLAG
l When the DLAG
on the equipment at one end is deleted, the equipment at the opposite
end starts link
re-negotiation. In this case, the DLAG_PROTECT_FAIL alarm is
reported but the
services are not interrupted.
l When the DLAGs
on the interconnected equipment at both ends are deleted at the same
time, the
services are not interrupted.
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