QuickSpecs
Technical Specifications
VLAN Features
VLAN Features
VLAN Features
VLAN Features
Quality of Service
Quality of Service
Quality of Service
Quality of Service
Features
Features
Features
Features
Management Features
Management Features
Management Features
Management Features
DA - 12515
Worldwide — Version 7 — November 12, 2007
Cisco Catalyst 3020 Blade Switch for HP c-Class
Cisco Catalyst 3020 Blade Switch for HP c-Class
Cisco Catalyst 3020 Blade Switch for HP c-Class
Cisco Catalyst 3020 Blade Switch for HP c-Class
4096 VLAN IDs are supported.
VLAN1 minimization allows VLAN1 to be disabled on any individual VLAN
trunk link.
VLAN Trunking Protocol (VTP) pruning limits bandwidth consumption on VTP
trunks by flooding broadcast traffic only on trunk links required to reach the
destination devices.
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.
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
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