Default SDM template in Cat3560
Switch#sh sdm prefer
The current template is “desktop default” template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 6K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 8K
number of directly-connected IPv4 hosts: 6K
number of indirect IPv4 routes: 2K
number of IPv4 policy based routing aces: 0
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 1K
As shown in SDM template output, it supports only IPv4, to use IPv6 I need to change the SDM template to dual IPv4-IPv6.
Dual ipv4-to-ipv6 options
Switch(config)#sdm prefer dual-ipv4-and-ipv6 ?
default Default bias
routing Unicast bias
vlan VLAN bias
Default – Default template to balance system resources
routing – Routing template to support ipv4 and ipv6 routing including ipv4 policy-based routing
vlan – maximize vlan configuration template with no routing supported on hardware.
My choice
Switch(config)#sdm prefer dual-ipv4-and-ipv6 routing
Switch needs a reboot to make changes to take effect.
Verify the SDM template
Switch#sh sdm prefer
The current template is “desktop IPv4 and IPv6 routing” template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 1.5K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 2.75K
number of directly-connected IPv4 hosts: 1.5K
number of indirect IPv4 routes: 1.25K
number of IPv6 multicast groups: 1.125k
number of directly-connected IPv6 addresses: 1.5K
number of indirect IPv6 unicast routes: 1.25K
number of IPv4 policy based routing aces: 0.25K
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 0.5K
number of IPv6 policy based routing aces: 0.25K
number of IPv6 qos aces: 0.5K
number of IPv6 security aces: 0.5K
Now there will be ipv6 related commands available to use, for example:
Switch(config)#ipv6 unicast-routing
cyruslab 