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Layer 2 Networking
The Cisco 2960-S and 2960 Series Switches provide Layer 2 networking to enable availability.
Features include but are not limited to:
●
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 offers the benefit of
Layer 2 load balancing and distributed processing.
●
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.
●
Switch-port autorecovery (Errdisable) automatically attempts to reactivate a link that is disabled because
of a network error.
●
Up to 64 VLANs and up to 64 spanning-tree instances per switch are supported.
Quality of Service
The Cisco Catalyst 2960-S and 2960 Series Switches offers intelligent services that keep everything flowing
smoothly. 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 2960-S and 2960 Series Switches:
●
802.1p class of service (CoS) classification provides differentiated services when best-effort traffic
delivery is insufficient.
●
Four egress queues per port help enable differentiated management of different traffic types across the
stack.
●
Shaped Round Robin (SRR) scheduling helps ensure differential prioritization of packet flows by
intelligently servicing the ingress queues and egress queues.
●
Weighted Tail Drop (WTD) provides congestion avoidance at the ingress and egress queues before a
disruption occurs.
Tables 3, 4, 5, 6 and 7 provide hardware features, power specifications, management and standards, and safety
and compliance information for the Cisco Catalyst 2960-S and 2960 Series Switches with LAN Lite Software.
Table 3. Hardware Features for Cisco Catalyst 2960-S and 2960 Series Switches with LAN Lite Software
Performance and Scalability Numbers for All Switch Models
Forwarding bandwidth 16 Gbps (2960), 50 Gbps (2960-S)
Flash memory 32 MB (2960), 64 MB (2960-S)
Memory DRAM 64 MB (2960), 128 MB (2960-S)
Max VLANs 64
VLAN IDs 4000
Maximum transmission unit (MTU) Up to 9198 bytes
Jumbo frames 9016 bytes (2960), 9216 bytes (2960-S)
Forwarding Rate
2960S-48TS-S 74.4 mpps
2960S-24TS-S 38.7 mpps
2960-8TC-S 2.7 mpps
(11 pages)
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