No. |
Item |
Requirements |
1 |
Number of nodes on a ring |
It should be no more than 16. Otherwise, you should adopt SNCP. |
2 |
Switching recovery time |
600 seconds |
3 |
B2-SD switching |
Enabled |
Caution:
(1) When the OptiX OSN 9500 is performing the networking of an MSP ring, the node number of ring needs not to increase one by one from 0 to N-1.
(2) Each line board extracts four lines of overheads at most, so it has up to four optical interfaces for networking.
(3) JH41, JLH1, JLHE board do not support the MSP ring.
2.4.4 Configuration Requirement of Linear MSP
Table 2-13 gives the configuration requirements of linear MSP.
Table 2-13 Configuration requirements of linear MSP
No. |
Item |
Requirements |
1 |
Switching recovery time |
600 seconds |
2 |
B2-SD switching |
Enabled |
3 |
1+1 protection |
Switching bridge: single-ended switching Switching recovery: non-revertive mode |
4 |
1:N (N≤14) protection |
Switching bridge: Dual-ended switching Switching recovery: revertive mode |
2.4.5 Re-route Protection Configuration Requirement
Table 2-14 shows the configuration requirements of re-route protection.
Table 2-14 Re-route protection configuration requirements
No. |
Requirements |
1 |
Load the intelligent software and enable the intelligent functions. |
2 |
Configure the service protection as reroute. |
3 |
The network provides enough resources for rerouting. |
2.5 Equipment-Level Protection Configuration Requirement
Table 2-15 shows the configuration requirements of equipment-level protection.
Table 2-15 Configuration requirements of equipment-level protection
Equipment-level protection type |
Requirements |
JPIU: 1+1 hot backup |
Required |
GXCH/EXCH: 1+1 hot backup |
Required |
JSCC: 1+1 hot backup |
Recommended |
GXCL: 1+1 hot backup |
Recommended |
JSTG: 1+1 hot backup |
Required |
JPBU-key power 1:3 backup |
Required |
GXCL can be inserted into a 20 G IU slot and there is no slot restriction for its active/standby protection. Figure 2-3 shows the position of the active/standby protection slots of other boards.
Figure 2-3 Slot configuration requirements of equipment-level protection
2.6 Orderwire & ECC Configuration Requirement
2.6.1 Orderwire Configuration Requirement
Orderwire phone is an easy communication method for the maintenance engineer. It should be configured following the requirements below.
Table 2-16 Configuration requirements of network orderwire
No. |
Requirements |
1 |
The orderwire signaling of network should be identical or compatible. |
2 |
The orderwire phone number of each node is of the same length. Four-digit is recommended. |
3 |
It is suggested to set the orderwire phone number as subnet number (one digit) + user number (three digits). |
4 |
The number of conference call in a network should be the same and be larger than that of orderwire phone. Number 9999 is recommended. |
5 |
No repetition of orderwire number in a network is allowed, conference call exclusive. |
6 |
The dialing mode of orderwire phone at each node is dual-tone multi-frequency. |
7 |
The call waiting time of each node should be consistent. Five seconds for nodes less than 30 and nine seconds for nodes more than 30. The OptiX OSN 9500 adopts nine seconds by default. |
8 |
The orderwire phone number increases following the sequence of node ID. |
9 |
When orderwire interworking is required at where there is no optical path connection, orderwire outgoing subnet connection can be made for the purpose. |
10 |
If there is howl in the orderwire loop, disconnect a loop to solve the problem. |
11 |
When orderwire interworking is required at where there is no optical path connection, orderwire outgoing subnet connection can be made for the purpose. In this case, use Voice 1 or Voice 2 as the audio interface, use Serial 3 or Serial 4 as the data interface. |
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