Datasheet

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availability scheme for network control. In the unlikely event of a single unit failure, all other units continue to
forward traffic and maintain operation.
Other high-availability features include but are not limited to:
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Cross-Stack EtherChannel provides the ability to configure Cisco EtherChannel technology across different
members of the stack for high resiliency.
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Flexlink provides link redundancy with convergence time less than 100 ms.
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IEEE 802.1s/w Rapid Spanning Tree Protocol (RSTP) and Multiple Spanning Tree Protocol (MSTP) provide
rapid spanning-tree convergence independent of spanning-tree timers and also offer the benefit of Layer 2
load balancing and distributed processing. Stacked units behave as a single spanning-tree node.
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Per-VLAN Rapid Spanning Tree (PVRST+) allows rapid spanning-tree reconvergence on a per-VLAN
spanning-tree basis, without requiring the implementation of spanning-tree instances.
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Cisco Hot Standby Router Protocol (HSRP) is supported to create redundant, failsafe routing topologies.
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Switch-port autorecovery (Errdisable) automatically attempts to reactivate a link that is disabled because of
a network error.
High-Performance IP Routing
Cisco Express Forwarding hardware routing architecture delivers extremely high-performance IP routing in the
Cisco Catalyst 3750-X and 3560-X Series Switches.
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Static routing (16 routes) with LAN Base feature set.
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IP unicast routing protocols (Static, Routing Information Protocol Version 1 [RIPv1], and RIPv2, RIPng,
EIGRP stub) are supported for small-network routing applications with IP Base feature set.
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Advanced IP unicast routing protocols (OSPF, EIGRP, BGPv4, and IS-ISv4) are supported for load
balancing and constructing scalable LANs. IPv6 routing (OSPFv3, EIGRPv6) is supported in hardware for
maximum performance. OSPF for routed access is included in the IP Base image. The IP Services feature
set is required for full OSPF, EIGRP, BGPv4, and IS-ISv4.
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Equal-cost routing facilitates Layer 3 load balancing and redundancy across the stack.
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Policy-based routing (PBR) allows superior control by facilitating flow redirection regardless of the routing
protocol configured. The IP Services feature set is required.
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Hot Standby Routing Protocol (HSRP) provides dynamic load balancing and failover for routed links, up to
32 HSRP links supported per unit or stack.
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Protocol Independent Multicast (PIM) for IP multicast routing is supported, including PIM sparse mode
(PIM-SM), 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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Virtual routing and forwarding (VRF)-Lite enables a service provider to support two or more VPNs, with
overlapping IP addresses. IP Services feature set is required.
Superior Quality of Service
The Cisco Catalyst 3750-X and 3560-X Series offers GbE 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.