363-206-295
Administration and Provisioning
8-28
Issue 1
December 1997
OC-12 Ring Network Drop and Continue Cross-
Connection Example
8
Figure 8-3 shows a DRI network.
1.
The user wants to provision a fully protected service using drop and continue
cross-connections in this dual ring topology. The service is a DS3 at RT2 (bottom
node in figure) to CO 4 (top node in figure).
2.
All nodes require the same release of drop and continue ring software. The two
terminating nodes (CO 4 and RT2) require low-speed 3DS3 circuit packs in a
function unit as defined by the work order.
3.
The site CO 1 has two NEs: one is part of the upper ring subnetwork and the other
is a part of the lower subnetwork. They are connected by EC-1 signals provided by
3STS1E low-speed circuit packs. The figure shows these connections in function
unit C of both NEs, but any available function unit can be used.
4.
Note in the figure the identification of Ring 1 (clockwise) and Ring 2
(counterclockwise). This identification is a key to correct provisioning and needs to
be checked before cross-connections are made.
5.
The work order will specify the low-speed channel of the DS3 service, the available
high-speed channel on the lower ring, and the low-speed channel assigned at the
drop and continue nodes. While it is not required by DDM-2000 that the low-speed
channel of the drop and continue nodes be the same, it is recommended to
simplify record keeping.
6.
For this example, the cross-connections are:
ent-crs-sts1:c-2,mb-7 at RT2 (twoway drop)
ent-crs-sts1:mb-7,mb-7 at RT3 and RT1 (pass-through)
ent-crs-sts1:mb-7,c-2:cct=dc,ring=mb1 at CO 1 (lower NE)
ent-crs-sts1:mb-7,c-2:cct=dc,ring=mb2 at CO 2 (lower NE).
The continued signal at CO 1 must be assigned to Ring 1 ("mb1") and the
continued signal at CO 2 must be assigned to Ring 2 ("mb2").
7.
In a similar manner, the upper ring is provisioned according to the work order. The
high-speed and low-speed addresses do not have to be the same as the ones
used in the lower ring, but they must follow the rules for rings, which is to assign a
single high-speed channel to all nodes for this DS3 service. For this example, the
cross-connections are:
ent-crs-sts1:mb-7,c-2:cct=dc,ring=mb2 at CO 1 (upper NE)
ent-crs-sts1:mb-7,c-2:cct=dc,ring=mb1 at CO 2 (upper NE)
ent-crs-sts1:mb-7,mb-7 at CO 3 and CO 5 (pass-through)
ent-crs-sts1:c-2,mb-7 at CO 4 (two-way drop).
The continued signal at CO 1 must be assigned to Ring 2 ("mb2"), and the
continued signal at CO 2 must be assigned to Ring 1 ("mb1").
Содержание DDM-2000 OC-12
Страница 1: ...363 206 295 Issue 1 December 1997 DDM 2000 OC 12 Multiplexer Release 7 0 User Service Manual Volume I ...
Страница 37: ...Tables xxxviii Issue 1 December 1997 A A SONET Overview A 1 SONET Payloads A 18 A 2 SONET Transport Rates A 19 ...
Страница 506: ...INS PROG 8 of 8 Page INS PROG COMMANDS RELATED rtrv eqpt rtrv ne OC 12 DDM 2000 1997 December 1 Issue 11 89 ...
Страница 528: ...RTRV ATTR ALM 2 of 2 Page RTRV ATTR ALM COMMANDS RELATED set attr alm OC 12 DDM 2000 1997 December 1 Issue 11 111 ...
Страница 565: ...RTRV OC3 3 of 3 Page RTRV OC3 COMMANDS RELATED rtrv sync 11 148 1997 December 1 Issue OC 12 DDM 2000 ...
Страница 664: ...SET FEAT 3 of 3 Page SET FEAT COMMANDS RELATED rtrv feat OC 12 DDM 2000 1997 December 1 Issue 11 247 ...
Страница 766: ... Ctl T TOGGLE 2 of 2 Page Ctl T TOGGLE COMMANDS RELATED logout rlgn OC 12 DDM 2000 1997 December 1 Issue 11 349 ...
Страница 847: ...Multiplexer OC 12 DDM 2000 7 Release TARP TOP Manual User Service II Volume 363 206 295 1 Issue 1997 December ...
Страница 867: ...363 206 295 TOP Maintenance and Operation BLANK LEFT INTENTIONALLY PAGE THIS 12 1997 December 1 Issue ...
Страница 1145: ...Order Circuit 363 206 295 NTP 029 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1146: ...Order Circuit 363 206 295 NTP 030 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1182: ...Turnup System 363 206 295 NTP 033 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1243: ...Clearing Trouble 363 206 295 TAP 107 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1393: ...363 206 295 DLP 513 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1394: ...363 206 295 DLP 514 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1456: ...363 206 295 DLP 523 7 of 7 Page 1997 December 1 Issue OC 12 via Access Broadcast Video for Cross connections of Example 4 Figure ...
Страница 1465: ...DLP 525 363 206 295 1997 December 1 Issue 6 of 2 Page Schematic Ring Virtual ATM Sample 1 Figure ...
Страница 1469: ...DLP 525 363 206 295 1997 December 1 Issue 6 of 6 Page Ring Virtual ATM OC 12 DDM 2000 for Cross connections of Example 4 Figure ...
Страница 1565: ...363 206 295 DLP 543 6 of 5 Page 1997 December 1 Issue Network Broadcast Video of Test Transmission 2 Figure ...
Страница 1566: ...DLP 543 363 206 295 1997 December 1 Issue 6 of 6 Page Network Ring Virtual ATM of Test Transmission 3 Figure ...