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    forwarding-options (chassis)

    Syntax

    forwarding options profile-name {num-65-127-prefix valuelpm-profile prefix-65-127-disable}

    Hierarchy Level

    [edit chassis]

    Release Information

    Statement introduced in Junos 13.2 for the QFX Series.

    Description

    Configure a unified forwarding table profile to allocate the amount a memory available for the following:

    • MAC addresses
    • Layer 3 host entries
    • Longest prefix match table entries

    Options

    profile-name

    name of the profile to use for memory allocation in the unified forwarding table. Table 1 lists the profiles you can choose and the associated values for each type of entry.

    Table 1: Unified Forwarding Table Profiles

    Profile NameMAC TableHost Table (unicast and multicast addresses)
     MAC AddressesIPv4 unicastIPv6 unicastIPv4 (*, G)IPv4 (S, G)IPv6 (*, G)IPv6 (S, G)

    l2-profile-one

    288K

    16K

    8K

    8K

    8K

    4K

    4K

    l2-profile-two

    224K

    80K

    40K

    40K

    40K

    20K

    20K

    l2-profile-three (default)

    160K

    144K

    72K

    72K

    72K

    36K

    36K

    l3-profile

    96K

    208K

    104K

    104K

    104K

    52K

    52K

    lpm-profile*

    32K

    16K

    8K

    8K

    8K

    4K

    4K

    * This profile supports only IPv4 in Junos OS 13.2X51-D10. With Junos OS 13.2X51-D15 it supports IPv4 and IPv6.

    Note that if the host stores the maximum number of entries for any given type, the entire table is full and is unable to accommodate any entries of any other type. For information about valid combinations of table entries see Understanding the Unified Forwarding Table.

    You configure the memory allocation for LPM table entries differently depending on whether you use Junos OS 13.2X51-D10 or Junos OS 13.2X51-D15 and later. To learn how to configure memory allocation for LPM table entries seeConfiguring the Unified Forwarding Table.

    Required Privilege Level

    Published: 2014-07-23