Cisco Systems EA6500 Manual De Usuario

 shows the default hardware Layer 3 switching configuration.

Follow these guidelines and restrictions when configuring hardware Layer 3 switching:

The PFC2 supports a maximum of 16 unique Hot Standby Routing Protocol (HSRP) group numbers. 
You can use the same HSRP group numbers in different VLANs. If you configure more than 16 HSRP 
groups, this restriction prevents use of the VLAN number as the HSRP group number.

Identically numbered HSRP groups use the same virtual MAC address, which might cause 
errors if you configure bridge groups.

Hardware Layer 3 switching supports the following ingress and egress encapsulations:

Ethernet V2.0 (ARPA)

802.3 with 802.2 with 1 byte control (SAP1)

802.3 with 802.2 and SNAP

With Release 12.1(11b)E and later, when you are in configuration mode you can enter EXEC mode-level 
commands by entering the do keyword before the EXEC mode-level command.

Hardware Layer 3 switching enable state

Enabled (cannot be disabled)

Cisco IOS CEF enable state on MSFC2

Enabled (cannot be disabled)

Cisco IOS dCEF

1

 enable state on MSFC2

1.

dCEF = Distributed Cisco Express Forwarding

Enabled (cannot be disabled)

IGMP

2

 snooping

2.

IGMP = Internet Group Management Protocol

Enabled

Multicast routing on MSFC2

Disabled globally

PIM

3

 routing on MSFC2

3.

PIM = Protocol Independent Multicast

Disabled on all Layer 3 interfaces

IP multicast Layer 3 switching threshold

Unconfigured—no default value

IP multicast Layer 3 switching

Enabled when multicast routing is enabled and IP 
PIM is enabled on the interface