Cisco 2960S - routing

Cisco Catalyst 2960S je L2 switch.
Přesto od verze IOS 12.2(55) nastala jistá změna.

Je možné zapnout routing mezi VLAN.
Nejprve je nutno změnit SDM šablonu - přepnout do lanbase-routing

Switch(config)#sdm prefer lanbase-routing
Changes to the running SDM preferences have been stored, but cannot take effect until the next reload. 

Use 'show sdm prefer' to see what SDM preference is currently active. 

Switch(config)#exit

Switch#reload

System configuration has been modified. Save? [yes/no]: y 

Proceed with reload? [confirm]

Následně po restartu provedeme kontrolu:
Switch#show sdm prefer 

The current template is "lanbase-routing" template. 

The selected template optimizes the resources in the switch to support this level of features for 8 routed interfaces and 255 VLANs. 

number of unicast mac addresses: 4K 

number of IPv4 IGMP groups + multicast routes: 0.25K 

number of IPv4 unicast routes: 4.25K

number of directly-connected IPv4 hosts: 4K

number of indirect IPv4 routes: 0.25K

number of IPv4 policy based routing aces: 0 

number of IPv4/MAC qos aces: 0.125k

number of IPv4/MAC security aces: 0.375k

A pak zapneme ip routing:
Switch#conf t 

Switch(config)#ip routing 

Switch(config)# 

Switch(config)#int vlan 10 

Switch(config-if)#ip add 192.168.10.1 255.255.255.0

Switch(config-if)# 

Switch(config-if)#int vlan 20

Switch(config-if)#ip add 192.168.20.1 255.255.255.0

Switch(config)#^Z

Switch#sh ip route ... 

C 192.168.10.0/24 is directly connected, Vlan10

C 192.168.20.0/24 is directly connected, Vlan20