Displays the current usage statistics of the Longest Prefix Match (LPM) hardware table and the Layer 3 hardware hash table by resource type.
| slot_num | For SummitStack only, this option displays the statistics for the specified slot. |
N/A.
This command shows the current number of IP routes and local and remote IPv4 hosts in the LPM hardware table. It also shows the number of IPv4 unicast, multicast, and IPv6 unicast entries in the Layer 3 hardware hash table. The theoretical maximums for each individual resource type are shown at the bottom of the output. These maximum values cannot all be achieved simultaneously, and individual values might not be reached depending on the addresses or routes in use.
The ExtremeXOS software supports the coexistence of higher- and lower-capacity hardware. To allow for coexistence and increased hardware forwarding, when the number of IPv4 routes exceeds 25,000, the lower-capacity hardware automatically transitions from using LPM routing to forwarding of individual remote hosts, also known as IP Forwarding Database (IP FDB) mode. Higher-capacity hardware continues using LPM routing. Lower-capacity hardware operating in IP FDB mode will be indicated with a d flag in the output of show iproute reserved-entries statistics command, indicating that only direct routes are installed. For more information, see “Coexistence of Higher- and Lower-Capacity Hardware” in the Switch Engine 32.2 User Guide .
The following example displays usage statistics for the LPM and Layer 3 hardware tables:
# show iproute reserved-entries statistics
|-----In HW Route Table-----| |--------In HW L3 Hash Table-------|
# Used Routes # IPv4 Hosts IPv4 IPv4 IPv6 IPv4 IPv6
Slot Type IPv4 IPv6 Local Remote Local Rem. Local MCast MCast
---- ------------------------------- ------- ------ ------ ------ ------ ------ ----- ------ ------
1 5720-24MXW 0 0 0 0 0 0 0 0 0
Theoretical maximum for each resource type:
5320 16-port, 5320 24-port 8160 4080 8192 8192 14334 16384 8192
* 8192 * 4096
5320 48-port, 5420F 12256 6128 12285 12288 14334 16384 8192
* 8192 * 4096
5420M 12256 6128 12288 12288 28670 32768 16384 *
16384 * 8192
5520 16352 8176 16384 16384 41982 65536 18429 *
32768 * 16384
5720MW 16352 8176 16384 16384 61438 98304 24573 *
49152 * 24576
5720MXW 24544 12272 24576 24576 143358 163840 81920 *
81920 * 40960
Flags: (!) Indicates all reserved route entries in use.
(d) Indicates only direct IPv4 routes are installed.
(>) Some IPv6 routes with mask > 64 bits are installed and do not use
entries in the internal HW Route Table.
(*) Assumes IP Multicast compression is on.
(M) IPMC entries stored in L2 MAC Table when lookup-key is 'mac-vlan'.
This command was first available in ExtremeXOS 12.1.
This command is available on ExtremeSwitching 5320, 5420, 5520, and 5720 series switches.