Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual page 368

JUNOS 10.1 Network Interfaces Configuration Guide
Table 25: ATM1 and ATM2 IQ Supported Features (continued)
Item
Shaping rates: Peak and sustained
rates of traffic.
VC tunnel CoS: Allows VCs to be
opened as VC tunnels.
298
Supported Features on ATM1 and ATM2 IQ Interfaces
ATM1 ATM2 IQ Comments
Supported Supported For ATM1 OC3 interfaces, the rate can be from 33 kilobits
per second (Kbps) through 135.6 megabits per second (Mbps);
for ATM1 OC12 interfaces, the rate can be from 33 Kbps
through 276 Mbps.
For ATM2 IQ OC3 interfaces, the rate can be from 33 Kbps
through 135,600,000 bits per second (bps). For ATM2 IQ
OC12 interfaces, the rate can be from 33 Kbps through
271,273,396 bps (up to 50 percent of the line rate).
For ATM2 IQ OC48 interfaces, the rate can be from 33 Kbps
through 2,170,107,168 bits per second (bps).
For ATM2 IQ DS3 and E3 interfaces, the rate can be from
33 Kbps to the maximum rate. The maximum rate varies
depending on the ATM encapsulation and framing you
configure:
Not Supported On M Series routers (except the M320 and M120 routers), a
supported VC tunnel can support four CoS queues. On the M320, M120,
and T Series routers, a VC tunnel can support eight CoS
queues. Within the VC tunnel, the class-based weighted fair
queuing algorithm is used to schedule packet transmission
from each queue. You can configure the queue admission
policies, such as EPD or WRED, to control the queue size
during congestion.
See "Configuring ATM2 IQ VC Tunnel CoS Components" on
page 347.
For DS3 interfaces with direct ATM encapsulation, the
maximum rate is 40,038,968 bps.
For DS3 interfaces with Physical Layer Convergence
Protocol (PLCP) ATM encapsulation, the maximum rate
is 36,864,000 bps.
For E3 interfaces with g.751 framing and direct ATM
encapsulation, the maximum rate is 30,801,509 bps.
For E3 interfaces with g.751 framing PLCP ATM
encapsulation, the maximum rate is 27,648,000 bps.
For E3 interfaces with g.832 framing, the maximum
rate is 30,720,000 bps.
See "Defining the ATM Traffic-Shaping Profile" on
page 326.