The following features have been added to JUNOS Release 8.1. The identifier following the description is the short title of the manual or manuals to consult for further information. For a complete list of manuals, see Table 5 and Table 6.
The M120 provides multiple redundancy options and chassis configurations, enhanced ASIC features, and improved chassis and Packet Forwarding Engine (PFE) scaling. The M120 utilizes the I-chip ASIC, which supports up to 32,000 logical interfaces. The base chassis provides 120 Gbps of midplane bandwidth between the interfaces and Forwarding Engine Boards (FEBs), and 144 Gbps of half-duplex fabric bandwidth between the interfaces and the FEBs.
The M120 is a quarter-rack chassis that supports up to six Flexible PIC Concentrators (FPCs). Four slots accept FPCs of types 1, 2, and 3 and two Compact FPCs (cFPCs). Each FPC can be configured with a variety of network media types, altogether providing up to 130 physical interface ports per system. The router height of 20.75 in. (52.71 cm) enables stacked installation of four routers in a single floor-to-ceiling rack, for increased port density per unit of floor space. In a standalone configuration, the router’s maximum aggregate throughput is 120 Gbps, full duplex.
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Note: Please contact Juniper Networks customer support before implementing MultiServices PICs. [PR/81905] |
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Caution: Writing an install image to /dev/rad3 instead of /dev/rda0 will destroy the Routing Engine hard disk. |
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Note: Please contact Juniper Networks customer support before implementing RE-A-1000 and RE-A-2000 Routing Engines. [PR/95538] |
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Note: The following information pertains to Channelized T1/E1 PIMs:
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[Secure JUNOS]
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Note: If you configure Automatic Protection Switching (APS), you must use the same SONET/SDH mode on both the working and protection interfaces. Otherwise, APS support does not function properly. |
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Note: When you configure the physical interface MTU for a flexible VLAN configuration, you must increase the MTU by 4 bytes more than the MTU you would configure for a standard VLAN tagged interface. |
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Note: When you use FRF.8 transparent mode, the JUNOS software cannot accept Frame Relay packets. |
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Note: A single AS PIC in a single routing platform supports the following maximum number of simultaneous tests (or flows) with a tolerance of 1 millisecond:
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Note: Please contact Juniper Networks customer support before implementing RPM timestamping on J-series Services Routers. [PR/79847] |
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Note: The new MED has the following attributes:
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Note: You cannot enable multicast traffic on an interface using the interface statement and configure PIM on the same interface simultaneously. |
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Note: On some PICs you can enable much larger buffer sizes to be configured by including the q-pic-large-buffer statement in the configuration. For more information, see the JUNOS Class of Service Configuration Guide. |
To configure access to log files, include the file (world-readable | no-world-readable) statement at the [edit snmp traceoptions] hierarchy level. To refine trace operation output, include the match regex statement at the [edit snmp traceoptions file filename] hierarchy level and specify a regular expression to be matched. [Network Management]
Table 1: JUNOS 8.1 CLI Commands and Equivalent JUNOS XML Tag Elements
[JUNOS XML API Operational Reference]