Restrictions for the EtherSwitch Network Module

The following functions are not supported by the EtherSwitch network module:

• CGMP client, CGMP fast-leave

• Dynamic ports

• Dynamic access ports

• Secure ports

• Dynamic trunk protocol

• Dynamic VLANs

• GARP, GMRP, and GVRP

• ISL tagging (The chip does not support ISL.)

• Layer 3 switching onboard

• Monitoring of VLANs

• Multi-VLAN ports Network Port

• Shared STP instances

• STP uplink fast for clusters

• VLAN-based SPAN

• VLAN Query Protocol

• VTP Pruning Protocol

• Web-based management interface

Source: http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/hif_c/ch05/h1636nm.htm#wp1043334