Datasheet

Data Sheet

also dynamically allocates hardware table space between IPv4 and IPv6 routes to maximize table-

space usage for optimal IPv4-to-IPv6 migration The Supervisor Engine 6-E supports Multicast

Listener Discovery (MLD) Snooping for IPv6, enhancing performance and reducing network traffic

by allowing a switch to dynamically add and remove hosts from a multicast group.

Table 5 highlights the IPv6 capabilities of the Supervisor Engine 6-E.

Table 5. Summary of Supervisor Engine 6-E IPv6 Capabilities

Feature and Description Supervisor Engine 6-E

IPv6 support Unicast and Multicast forwarding done in hardware

IPv6 performance 125 Mpps

IPv6 routing entries 128,000

Dynamic hardware route table allocations Yes

MLD Snooping for IPv6 Yes, in hardware

uRPFv6: Strict mode Yes, in hardware

Please refer to the “Features at a Glance” section of this data sheet for a complete listing of

supported features.

For more information about IPv6 feature support and configuration, please refer to the Cisco

Catalyst 4500 with Cisco IOS Software Release 12.2(40)SG release notes at:

http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_release_notes_list.html and the

Cisco IOS Software configuration library at:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide09186a00807fcf

4b.html.

Intelligent Network Services with QoS and Sophisticated Traffic Management

The Cisco Catalyst 4500 Supervisor Engine 6-E provides enhanced QoS features to help ensure

that network traffic is classified, prioritized, and scheduled optimally to efficiently deploy a unified

communications network that comprises bandwidth-hungry multimedia, time-sensitive (voice), and

mission-critical applications. This type of network allows the administrator to differentiate between

traffic flows and enforce policies. QoS capabilities include sharing, shaping, and strict-priority

configurations for optimal scheduling of egress traffic as well as Dynamic Buffer Limiting (DBL), a

flow-based congestion-avoidance feature. The Supervisor Engine 6-E extends the capabilities of

previous-generation supervisor engines by providing flexible queuing with up to 8 transmit queues

per port with dynamic queue sizing for greater flexibility in classifying and prioritizing traffic.

Classification has also been enhanced by providing configurable classification mapping tables

applied on a per-port basis, providing greater flexibility in marking traffic. Policing has also been

enhanced to include 2-Rate, 3-Color Policing for more granular control and enforcement of traffic

policies. Table 6 summarizes the enhanced QoS features of the Supervisor Engine 6-E.

Table 6. Summary of Supervisor Engine 6-E Enhanced QoS Features

Feature and Description Supervisor Engine 6-E

QoS hardware entries 64,000

Policers 16,000 with flexible assignment for input/output

Hierarchical policers Yes: 2-Rate, 3-Color

Number of Tx queues Flex queues up to 8*