Using Profiles - Juniper ACX1000 Configuration Manual

ACX Series Universal Access Router Configuration Guide
Table 87: Layer 3 Host Table
Profile
l2-profile-one
l2-profile-two
l2-profile-three (default)
l3-profile
lpm-profile
Table 88: Layer 3 LPM Table
Profile
l2-profile-one
l2-profile-two
(default)
l2-profile-three
l3-profile
lpm-profile
Configuring the Unified Forwarding Table to Optimize Address Storage Using Profiles
1170
Layer 3 Host Table
IPv4 Unicast IPv4 Multicast
16 KB 8 KB
80 KB 40 KB
144 KB 72 KB
208 KB 104 KB
16 KB 8 KB
The Layer 3 LPM table is shared between IPv4 route prefixes and IPv6 route prefixes.
Table 88 on page 1170 illustrates the size of the table for different profiles of the IPv4 and
IPv4 addresses in the Layer 3 LPM table. When unicast reverse-path forwarding (unicast
RPF) is enabled, the table size reduces to half.
Layer 3 LPM Table
IPv4 Unicast
16 KB
16 KB
16 KB
16 KB
128 KB
By default, there is no space allocated for IPv6 prefix address longer than /64 in the LPM
table. Therefore, prefix address longer than /64 are not allowed in the table by default.
The entire table is available for IPv4 addresses and for IPv6 addresses that have prefixes
shorter than /64. You can provide space in the table for addresses with prefixes longer
than /64 by using CLI configuration. The number of entries reserved for these prefixes is
configured in multiples of 16.
You can use five predefined profiles (
) to allocate the table memory space. The sizes of the Layer 2 MAC
l3-profile, lpm-profile
address table, Layer 3 host entry table, and Layer 3 LPM table are decided based on the
selected profile. You can configure and select the profiles that best suits your network
environment needs.
IPv6 Unicast
8 KB
40 KB
72 KB
104 KB
8 KB
IPv6 Unicast (Prefix <= /64)
8 KB
8 KB
8 KB
8 KB
40 KB
l2-profile-one, l2-profile-two, l2-profile-three,
Copyright © 2017, Juniper Networks, Inc.
IPv6 Multicast
4 KB
20 KB
36 KB
52 KB
4 KB
IPv6 Unicast (Prefix > /64)
4 KB
4 KB
4 KB
4 KB
8 KB