Cisco 3020 User Manual download pdf (Page 7)

Quality of Service

Quality of ServiceQuality of Service

Quality of Service

Features

FeaturesFeatures

Features

Wire rate performance for highly granular QoS functions. E.g. Granular rate

limiting

Asynchronous data flows upstream and downstream from the end station or

on an uplink are easily managed using ingress policing and egress shaping.

802.1p CoS and DSCP field classification are provided, using marking and

reclassification on a per-packet basis by source and destination IP address,

source and destination MAC address, or Layer 4 TCP/UDP port number.

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.

Up to 64 aggregate or individual policers per port are allowed.

Cisco control-plane and data-plane QoS ACLs on all ports help to ensure

proper marking on a per-packet basis.

4 egress queues per port enable differentiated management of up to 4 traffic

flows

Shaped Round Robin scheduling helps to ensure differential prioritization of

packet flows by intelligently servicing the egress queues.

Weighted Tail Drop (WTD) provides congestion avoidance at the ingress and

egress queues before a disruption occurs.

Strict priority queuing guarantees that the highest-priority packets are

serviced ahead of all other traffic.

The Cisco Committed Information Rate (CIR) function guarantees bandwidth

in increments as low as 8 Kbps.

Management Features

Management FeaturesManagement Features

Management Features

Cisco IOS CLI support provides a common user interface and command set

with all Cisco routers and Cisco Catalyst desktop switches.

Cisco Service Assurance Agent (SAA) support facilitates service-level

management throughout the LAN.

VLAN trunks can be created from any port, using either standards-based

802.1Q tagging or the Cisco Inter-Switch Link (ISL) VLAN architecture.

Up to 1005 VLANs per switch and up to 128 spanning-tree instances per

switch are supported.

Cisco VTP supports dynamic VLANs and dynamic trunk configuration across

all switches.

IGMP snooping provides fast client joins and leaves of multicast streams and

limits bandwidth-intensive video traffic to only the requestors.

Remote Switch Port Analyzer (RSPAN) allows administrators to remotely

monitor ports in a Layer 2 switch network from any other switch in the same

network.

For enhanced traffic management, monitoring, and analysis, the Embedded

Remote Monitoring (RMON) software agent supports 4 RMON groups

(history, statistics, alarms, and events).

Layer 2 traceroute eases troubleshooting by identifying the physical path that

a packet takes from source to destination.

All 4 RMON groups are supported through a SPAN port, which permits

traffic monitoring of a single port, a group of ports from a single network

analyzer, or RMON probe.

The Domain Name System (DNS) provides IP address resolution with user-

defined device names.

Trivial File Transfer Protocol (TFTP) reduces the cost of administering

software upgrades by downloading from a centralized location.

Network Time Protocol (NTP) provides an accurate and consistent timestamp

to all intranet switches.

Multifunction LEDs per port for port status; and switch-level status LEDs for

QuickSpecs

Cisco Catalyst 3020 Blade Switch for HP c-Class

Cisco Catalyst 3020 Blade Switch for HP c-ClassCisco Catalyst 3020 Blade Switch for HP c-Class

Cisco Catalyst 3020 Blade Switch for HP c-Class

BladeSystem

BladeSystemBladeSystem

BladeSystem

Technical Specifications

DA - 12515 North America — Version 4 — March 2, 2007

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QuickSpecs 1

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Cisco 3020 User Manual Page 7

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