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Multilink and Link Services Logical Interface Configuration Overview

You configure multilink and link services interface properties at the logical unit level. Default settings for multilink and link services logical interface properties are described in Default Settings for Multilink and Link Services Logical Interfaces.

For general information about logical unit properties or family inet properties, see the JUNOS Network Interfaces Configuration Guide. For information about multilink and link services properties you configure at the family inet hierarchy level, see Configuring the Links in a Multilink or Link Services Bundle.

Note: On DS0, E1, or T1 interfaces in LSQ bundles, you can configure the bandwidth statement, but the router does not use the bandwidth value if the interfaces are included in an MLPPP or MLFR bundle. The bandwidth is calculated internally according to the time slots, framing, and byte-encoding of the interface. For more information about logical interface properties, see the JUNOS Network Interfaces Configuration Guide.

Default Settings for Multilink and Link Services Logical Interfaces

Table 1 lists the default settings for multilink and link services statements, together with the other permitted values or value ranges.

Table 1: Multilink and Link Services Logical Interface Statements

Option

Default Value

Possible Values

DLCI

None

16 through 1022

Drop timeout period

500 ms for bundles greater than or equal to the T1 bandwidth value and 1500 ms for other bundles.

0 through 2000 milliseconds

Encapsulation

For multilink interfaces, multilink-ppp. For link services interfaces, multilink-frame-relay-end-to-end.

multilink-frame-relay-end-to-end, multilink-ppp

Fragmentation threshold

0 bytes

128 through 16,320 bytes (Nx64)

Interleave fragments

disabled

enabled, disabled

Minimum links

1 link

1 through 8 links

Maximum received reconstructed unit (MRRU)

1504 bytes

1500 through 4500 bytes

Sequence ID format for MLPPP

24 bits

12 or 24 bits

Sequence ID format for MLFR FRF.15 and FRF.16

12 bits

12 bits

See Default Settings for Link Services Interfaces for statements that apply to link services physical interfaces only.


Published: 2010-04-28

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