Cisco Systems 3560 사용자 설명서

Port blocking on forwarding unknown Layer 2 unknown unicast, multicast, and bridged broadcast 
traffic

Cisco Group Management Protocol (CGMP) server support and Internet Group Management 
Protocol (IGMP) snooping for IGMP Versions 1, 2, and 3:

(For CGMP devices) CGMP for limiting multicast traffic to specified end stations and reducing 
overall network traffic

(For IGMP devices) IGMP snooping for forwarding multimedia and multicast traffic

IGMP report suppression for sending only one IGMP report per multicast router query to the 
multicast devices (supported only for IGMPv1 or IGMPv2 queries)

IGMP snooping querier support to configure switch to generate periodic IGMP general query 
messages

IGMP helper to allow the switch to forward a host request to join a multicast stream to a specific IP 
destination address

Multicast VLAN registration (MVR) to continuously send multicast streams in a multicast VLAN 
while isolating the streams from subscriber VLANs for bandwidth and security reasons

IGMP filtering for controlling the set of multicast groups to which hosts on a switch port can belong

IGMP throttling for configuring the action when the maximum number of entries is in the IGMP 
forwarding table

IGMP leave timer for configuring the leave latency for the network

Switch Database Management (SDM) templates for allocating system resources to maximize 
support for user-selected features

Web Cache Communication Protocol (WCCP) for redirecting traffic to local wide-area application 
engines, for enabling content requests to be fulfilled locally, and for localizing web-traffic patterns 
in the network (requires the IP services image)

Cisco IOS IP Service Level Agreements (SLAs), a part of Cisco IOS software that uses active traffic 
monitoring for measuring network performance.

Configurable small-frame arrival threshold to prevent storm control when small frames (64 bytes or 
less) arrive on an interface at a specified rate (the threshold)

Flex Link Multicast Fast Convergence to reduce the multicast traffic convergence time after a Flex 
Link failure

RADIUS server load balancing to allow access and authentication requests to be distributed evenly 
across a server group. 

An embedded device manager—The device manager is a GUI that is integrated in the software 
image. You use it to configure and to monitor a single switch. For information about launching the 
device manager, see the getting started guide. For more information about the device manager, see the 
switch online help.

Network Assistant—Network Assistant is a network management application that can be 
downloaded from Cisco.com. You use it to manage a single switch, a cluster of switches, or a 
community of devices. For more information about Network Assistant, see Getting Started with 
Cisco Network Assistant, available on Cisco.com.