Juniper JUNOSE 11.3, Configuration Manual

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Redundancy is supported for SRP modules on certain E Series routers; for more
information, see
SRP Module Redundancy in JunosE Services Availability Configuration
Guide .
SRP modules have a corresponding SRP I/O module that contains a Fast Ethernet
management port. You can configure this port to access the router from a Telnet session
or SNMP. For more information, see “Managing the Ethernet Port on the SRP Module”
on page 388
.
For information about using high availability mode for stateful SRP switchover, see
Guidelines for Activating High Availability in
JunosE Services Availability Configuration
Guide .
E120 and E320 Broadband Services Routers
You can manage line modules, SRP modules, SFMs, and IOAs on the E120 and E320
routers. For more information about these modules, see the
E120 and E320 Module Guide .
For information about related procedures and installing modules, see E120 and E320
Hardware Guide, Chapter 4, Installing Modules . For information about upgrading software
on SRP modules, see the E120 and E320 Hardware Guide .
Line Modules and IOAs
Line modules on the E120 and E320 routers act as frameforwarding engines for the
physical interfaces, which are the IOAs.
You cannot configure the performance line rate of line modules for E120 and E320 Routers.
Redundancy is supported for line modules on this router. For more information, see
Line
Module Redundancy in JunosE Services Availability Configuration Guide .
On the E120 router, line modules can be installed in slots 0–5. On the E320 router, line
modules can be installed in slots 0–5 and 11–16. Both the E120 and E320 routers have
two turbo slots, numbered 2 and 4. When a line module is installed in a turbo slot, it spans
slots 2–3 and 4–5. The bandwidth of slot 3 or slot 5 is used for a line module in slot 2 or
slot 4 if that line module requires the turbo slot.
NOTE: If a line module is installed in slot 3 or slot 5, and the line module in
slot 2 or 4 requires bandwidth, the system configures the line module it detects
first. The state of the other line module is displayed as disabled (cfg error).
The 100 Gbps switch fabric that is available with the SRP 100 on the E320 router allocates
3.4 Gbps of overall bandwidth to each regular line module slot and 10 Gbps of overall
bandwidth to each of the turbo slots. With a 100 Gbps fabric configuration, you must
install the ES2 10G Uplink LM in the turbo slots. For more information, see
JunosE Physical
Layer Configuration Guide .
The 120 Gbps switch fabric on the E120 router allocates 10 Gbps of overall bandwidth to
each line module slot. Similarly, the 320 Gbps switch fabric on the E320 router allocates
10 Gbps of overall bandwidth to each line module slot. For both configurations, you can
install any line module in any of the slots.
343 Copyright © 2010, Juniper Networks, Inc.
Chapter 6: Managing Modules