Datasheet

Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 7 of 23
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HSRP provides dynamic load balancing and failover for routed links, up to 32 unique HSRP
links supported per unit. The group number can be reused for each VLAN configured in the
switch.
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Protocol Independent Multicast (PIM) for IP multicast routing is supported, including PIM
sparse mode (PIM-SM), Source Specific Multicast (SSM), PIM dense mode (PIM-DM), PIM
sparse-dense mode and Source Specific Multicast (SSM). The IP Services feature set is
required.
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Web Control Caching Protocol (WCCPv2) enables Wide Area Acceleration Services
(WAAS), resulting in improved application response time and conservation of WAN
bandwidth.
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Fallback bridging forwards non-IP traffic between two or more VLANs. The IP Services
feature set is required.
Superior Quality of Service
The Cisco Catalyst 3560-E Series offers Gigabit Ethernet speed with intelligent services that keep
everything flowing smoothly, even at 10 times the normal network speed. Industry-leading
mechanisms for marking, classification, and scheduling deliver superior performance for data,
voice, and video traffic, all at wire speed.
Following are some of the QoS features supported in the Cisco Catalyst 3560-E Series Switches:
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802.1p class of service (CoS) and differentiated services code point (DSCP) field
classification is provided, using marking and reclassification on a per-packet basis by
source and destination IP address, MAC address, or Layer 4 TCP/UDP port number.
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Cisco control-plane and data-plane QoS ACLs on all ports help ensure proper marking on a
per-packet basis.
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Four egress queues per port help enable differentiated management of up to four traffic
types across the switch.
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Shaped Round Robin (SRR) scheduling helps ensure differential prioritization of packet
flows by intelligently servicing the ingress queues and egress queues.
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Weighted Tail Drop (WTD) provides congestion avoidance at the ingress and egress
queues before a disruption occurs.
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Strict priority queuing helps ensure that the highest-priority packets are serviced ahead of
all other traffic.
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The Cisco committed information rate (CIR) function provides bandwidth in increments as
low as 8 Kbps.
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Rate limiting is provided based on source and destination IP address, source and
destination MAC address, Layer 4 TCP/UDP information, or any combination of these
fields, using QoS ACLs (IP ACLs or MAC ACLs), class maps, and policy maps.
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Up to 64 aggregate or individual policers are available per Fast Ethernet or Gigabit Ethernet
port.