Juniper JUNOSE 11.2.X MULTICAST ROUTING, Configuration Manual

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•
Clocking
• Redundancy
• Frame Relay logical interface support
•
Unique IP interface support for each PPP or Frame Relay PVC interface
•
HDLC
• Fractional T3 (T3 only)
• Line speeds of 45 Mbps (T3) and 34 Mbps (E3)
OCx/STMx/DS3-ATM Line Modules and 4xDs3 ATM I/O Modules
ERX7xx models, ERX14xx models, and the ERX310 router support the
OCx/STMx/DS3-ATM line modules and 4xDS3 ATM I/O modules.
ERX14xx models support up to twelve OCx/STMx/DS3-ATM line modules and twelve
4xDS3 ATM I/O modules, the ERX7xx models support up to five of these line modules
and five corresponding I/O modules, and the ERX310 router supports up to two of these
line modules and two corresponding I/O modules. There are four physical T3 (DS3) ports
per I/O module. Each port uses two BNC connectors: one for the transmit (TX) connection
and one for the receive (RX) connection.
OCx/STMx/DS3-ATM line modules pair with 4xDS3 ATM I/O modules to support the
following:
•
Clocking
•
Redundancy
• Frame Relay logical interface support
• Unique IP interface support for each PPP or Frame Relay PVC interface
•
Line speeds of 45 Mbps
CT3/T3-F0 Line Modules and CT3/T3 12 I/O Modules
ERX7xx models, ERX14xx models, and the ERX310 Broadband Services Router support
the CT3/T3-F0 line modules and CT3/T3 12 I/O modules.
The CT3/T3-F0 line module and CT3/T3 12 I/O module support both channelized and
unchannelized T3 operation. You can configure a mixture of channelized and
unchannelized ports on these modules. To configure these modules to support
unchannelized T3 operation, issue
no “channelized” on page 51 . (See “Configuration
Tasks” on page 51 . ) For information about configuring channelized T3 ports, see
“Configuring T3 and E3 Interfaces” on page 45.
ERX14xx models support up to twelve CT3/T3-F0 line modules and twelve CT3/T3 12
I/O modules, ERX7xx models support up to five of these line modules and five
corresponding I/O modules, and the ERX310 Broadband Services Router supports up to
two of these line modules and two corresponding I/O modules. There are twelve physical
Copyright © 2010, Juniper Networks, Inc. 48
JunosE 11.2.x Physical Layer Configuration Guide