 | Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
On Channelized OC12 PICs, you can configure 12 T3 channels per port. To configure channelized OC12 interface properties, you can include the sonet-options and t3-options statements at the [edit interfaces interface-name] hierarchy level. Some SONET/SDH options are ignored, and some can only be configured for channel 0, though they apply equally to all channels. The long-buildout statement under t3-options is also ignored.
For T3 channels on a channelized OC12 interface, the clocking statement is supported only for channel 0; it is ignored if included in the configuration of channels 1 through 11. The clock source configured for channel 0 applies to all channels on the channelized OC12 interface. The individual T3 channels use a gapped 45-MHz clock as the transmit clock. When you configure the clock source for a channelized interface—ds-fpc/pic/port :0, for example—you must also include the channel-group statement at the [edit chassis] hierarchy level and specify channel group 0. For more information, see Clock Sources on Channelized Interfaces.
For more information, see Configuring SONET/SDH Interfaces and Configuring T3 Interfaces. For a configuration example, see Configuring Aggregated SONET/SDH Interfaces.
Table 41 summarizes the OC12-to-DS3 numbering scheme.
Table 41: OC12-to-DS3 Numbering Scheme
|
Two-Level STS-1 Number (STS-3,STS-1) |
One-Level STS Number |
OC12-to-DS3 PIC DS3 Number |
|---|---|---|
|
1,1 |
1 |
0 |
|
1,2 |
2 |
1 |
|
1,3 |
3 |
2 |
|
2,1 |
4 |
3 |
|
2,2 |
5 |
4 |
|
2,3 |
6 |
5 |
|
3,1 |
7 |
6 |
|
3,2 |
8 |
7 |
|
3,3 |
9 |
8 |
|
4,1 |
10 |
9 |
|
4,2 |
11 |
10 |
|
4,3 |
12 |
11 |
| Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |