Datasheet

Data Sheet
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Distance Vector Multicast Routing Protocol (DVMRP) tunneling interconnects 2 multicast-
enabled networks across nonmulticast networks. The IP Services feature set is required.
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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 3750-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 3750-E Series Switches:
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Cross-stack QoS allows QoS to be configured across the entire stack.
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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 stack.
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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.
Advanced Security
The Cisco Catalyst 3750-E Series supports a comprehensive set of security features for
connectivity and access control, including ACLs, authentication, port-level security, and identity-
based network services with 802.1x and extensions. This set of comprehensive features not only
helps prevent external attacks, but defends the network against “man-in-the-middle” attacks, a
primary concern in today’s business environment. The switch also supports the Network
Admission Control (NAC) security framework.
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Dynamic ARP Inspection (DAI) helps ensure user integrity by preventing malicious users
from exploiting the insecure nature of the ARP protocol.