Data-Link Connection Identifiers on Channelized Interfaces
If you use Frame Relay encapsulation on a channelized interface, see Table 1 for the maximum number of data-link connection identifiers (DLCIs) per channel that you can configure at each channel level for various channelized PICs.
If you use a per-unit-scheduler configuration on a channelized interface, see Table 2 for the maximum number of data-link connection identifiers (DLCIs) per channel that you can configure at each channel level for various channelized PICs.
 | Note: The actual number of DLCIs you can configure for each channel is determined by the capabilities of your system, such as the number and types of PICs installed. If the number of DLCIs in the configuration exceeds the capabilities of your system, the router might not be able to support the maximum DLCI values shown in Table 1. To determine the capabilities of your system, please contact Juniper Networks customer support. |
Table 1: Frame Relay DLCI Limitations for Channelized Interfaces
PIC Types | Number of DLCIs | Range |
|---|---|---|
| Original Channelized PICs | ||
DS0 level channels | 3 for sparse mode | 1–1022 for sparse mode (0 is reserved for the Local Management Interface [LMI]) |
T3 and T1 level channels | 63 for regular mode | 1–63 for regular mode |
3 for sparse mode | 1–1022 for sparse mode (0 is reserved for the LMI) | |
| Channelized IQ and IQE PICs | ||
DS0 level channels (Channelized DS3 IQ or IQE, Channelized STM1 IQ or IQE, Channelized E1 IQ or IQE, Channelized OC3 IQ or IQE, or Channelized OC12 IQ or IQE PICs) | 16 | 1–1022 (0 is reserved for the LMI) |
E1 level channels (Channelized E1 IQ or IQE PIC) | 64 | 1–1022 (0 is reserved for the LMI) |
E1 level channels (Channelized STM1 IQ or IQE PIC) | 64 | 1–1022 (0 is reserved for the LMI) |
OC3 level channels (Channelized OC3 IQ or IQE, or Channelized OC12 IQ or IQE PIC) | 1022 | 1–1022 (0 is reserved for the LMI) |
OC12 level channels (Channelized OC12 IQ or IQE, Channelized OC48/STM16 IQE PICs, and (per port on) OC12 ports on 4xOC12/STM4 IQE PICs) | 1022 | 1–1022 (0 is reserved for the LMI) |
STM1 level channel (Channelized STM1 IQ or IQE PIC) | 1022 | 1–1022 (0 is reserved for the LMI) |
T1 level channels (Channelized DS3 IQ or IQE PIC) | 64 | 1–1022 (0 is reserved for the LMI) |
T1 level channels (Channelized OC3 IQ or IQE, or Channelized OC12 IQ or IQE PIC) | 64 | 1–1022 (0 is reserved for the LMI) |
T3 level channel (Channelized DS3 IQ or IQE, Channelized OC3 IQ or IQE, or Channelized OC12 IQ or IQE PIC) | 1022 | 1–1022 (0 is reserved for the LMI) |
Table 2: Per Unit Scheduler DLCI Limitations for Channelized Interfaces
PIC Types | Number of DLCIs per Level | |||
|---|---|---|---|---|
Non M40e Platforms | M40e Platform Only | |||
With Per-Unit-Scheduler | Without Per-Unit-Scheduler | With Per-Unit-Scheduler | Without Per-Unit-Scheduler | |
DS0 level channels | 64 | 64 | 16 | 16 |
T1/E1 level channels | 64 | 64 | 64 | 64 |
DS3/E3 level channels | 975 | † Protocol family combinations apply | 256 | 256 |
SONET | 975 | † Protocol family combinations apply | 975 | † Protocol family combinations apply |
† In these router, PIC, and scheduler configurations, combining multiple protocol families per PIC changes the number of Frame Relay DLCIs as shown in Table 3. | ||||
Table 3: Protocol Family Combinations
Protocol Family Combinations | Number of DLCIs per PIC |
|---|---|
inet | 3600 |
inet6 | 3600 |
mpls | 3000 |
inet, inet6 | 2400 |
inet, mpls | 2000 |
inet6, mpls | 2000 |
inet, inet6, mpls | 1550 |
