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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