Configuring The Mac/Arp Hardware Resource Template - Cisco Nexus 6000 Series Configuration Manual

Configuring the MAC/ARP Hardware Resource Template

The hrt-96-stm-160 and hrt-32-stm-224 template profiles are not recommended in the presence of IPv6
Note
entries. This is because these two profiles result in an odd number of SRAMs available for the HRT table.
Insertion of IPv6 entries need free spaces in 2 consecutive SRAMs.
The recommended maximum ARP percentage of the configured value is 50%. The recommended maximum
MAC percentage of the configured value is 90%. For example, if the profile is set to hrt-96-stm-160, 50%
of 96k (48k) is the recommended maximum ARP entries that a switch can have.
When applying or unapplying a template profile, you need to enter the copy running-config startup-config
command and reload the switch in order to activate the newly applied/default template. These commands are
per-switch based, therefore they need to be configured explicitly on a vPC peer switch.
Configuring the MAC/ARP Hardware Resource Template
Procedure
Step 1
Step 2
Step 3
This example shows how to configure the hrt-96-stm-160 template:
switch# configure terminal
switch(config)# hardware profile route resource service-template hrt-96-stm-160
switch(config)# copy running-config startup-config
Cisco Nexus 6000 Series NX-OS Layer 2 Switching Configuration Guide, Release 7.x
200
Command or Action
switch# configure terminal
switch(config)# hardware profile
route resource service-template
template-name
switch(config)# copy
running-config startup-config
Configuring MAC/ARP Hardware Resource Carving Template
Purpose
Enters global configuration mode.
Commits a specified pre-defined template.
Four pre-defined stm/hrt templates exist:
• hrt-128-stm-128
Default value
• hrt-96-stm-160
• hrt-64-stm-192
• hrt-32-stm-224
When entering this command, a message is displayed telling
you the applied stm/hrt template will be activated upon switch
reload.
Upon rebooting, this pre-defined template is applied. If this
command is issued multiple times, the latest stm/hrt template
is applied.
(Optional)
Saves the change persistently through reboots and restarts by
copying the running configuration to the startup configuration.