Selecting the SDM Template

A Switch Database Management (SDM) template is a description of the maximum resources a switch or router can use for various features. Different SDM templates allow different combinations of scaling factors, enabling different allocations of resources depending on how the device is used. In other words, SDM templates enable you to reallocate system resources to support a different mix of features based on your network requirements.

NOTE: If you attach a unit to a stack and its template does not match the stack's template, then the new unit will automatically reboot using the template used by other stack members. To avoid the automatic reboot, you may first set the template to the template used by existing members of the stack. Then power off the new unit, attach it to the stack, and power it on.

To display the SDM Template Preference page, click System > SDM Template Preference in the navigation menu.

SDM Template Preference

Field	Description
SDM Current Template ID	Displays the SDM Template that is currently active.
SDM Next Template ID	Select the template that will become active after the next reboot: Dual IPv4 and IPv6 - filters subsequent template choices to those that support both IPv4 and IPv6. There is only one such template, and it is selected using the keyword default. Iv4 Routing - filters subsequent template choices to those that support IPv4, and not IPv6. The default IPv4‐only template maximizes the number of IPv4 unicast routes, while limiting the number of ECMP next hops in each route to 4. The data‐center template supports increases the number of ECMP next hops to 16 and reduces the number of routes.
SDM Template (Summary)	Identifies the available templates.
ARP Entries	The maximum number of entries in the IPv4 Address Resolution Protocol (ARP) cache for routing interfaces.
IPv4 Unicast Routes	The maximum number of IPv4 unicast forwarding table entries.
IPv6 NDP Entries	The maximum number of IPv6 Neighbor Discovery Protocol (NDP) cache entries.
IPv6 Unicast Routes	The maximum number of IPv6 unicast forwarding table entries.
ECMP Next Hops	The maximum number of next hops that can be installed in the IPv4 and IPv6 unicast forwarding tables.
IPv4 Multicast Routes	The maximum number of IPv4 multicast forwarding table entries.
IPv6 Multicast Routes	The maximum number of IPv6 multicast forwarding table entries.

Click Refresh to display the latest information from the router.