Cisco IE 3000 User Manual

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Cisco IE 3000 Switch Software Configuration Guide
OL-13018-01
Chapter 1 Overview
Features
• The HTTP client in Cisco IOS supports can send requests to both IPv4 and IPv6 HTTP server, and
the HTTP server in Cisco IOS can service HTTP requests from both IPv4 and IPv6 HTTP clients
• Simple Network and Management Protocol (SNMP) can be configured over IPv6 transport so that
an IPv6 host can send SNMP queries and receive SNMP notifications from a device running IPv6
• IPv6 stateless autoconfiguration to manage link, subnet, and site addressing changes, such as
management of host and mobile IP addresses
Availability and Redundancy Features
These are the availability and redundancy features:
• UniDirectional Link Detection (UDLD) and aggressive UDLD for detecting and disabling
unidirectional links on fiber-optic interfaces caused by incorrect fiber-optic wiring or port faults
• IEEE 802.1D Spanning Tree Protocol (STP) for redundant backbone connections and loop-free
networks. STP has these features:
– Up to 128 spanning-tree instances supported
– Per-VLAN spanning-tree plus (PVST+) for load balancing across VLANs
– Rapid PVST+ for load balancing across VLANs and providing rapid convergence of
spanning-tree instances
– UplinkFast and BackboneFast for fast convergence after a spanning-tree topology change and
for achieving load balancing between redundant uplinks, including Gigabit uplinks
• IEEE 802.1s Multiple Spanning Tree Protocol (MSTP) for grouping VLANs into a spanning-tree
instance and for providing multiple forwarding paths for data traffic and load balancing and rapid
per-VLAN Spanning-Tree plus (rapid-PVST+) based on the IEEE
802.1w Rapid Spanning Tree
Protocol (RSTP) for rapid convergence of the spanning tree by immediately changing root and
designated ports to the forwarding state
• Optional spanning-tree features available in PVST+, rapid-PVST+, and MSTP mode:
– Port Fast for eliminating the forwarding delay by enabling a port to immediately change from
the blocking state to the forwarding state
– BPDU guard for shutting down Port Fast-enabled ports that receive bridge protocol data units
(BPDUs)
– BPDU filtering for preventing a Port Fast-enabled port from sending or receiving BPDUs
– Root guard for preventing switches outside the network core from becoming the spanning-tree
root
– Loop guard for preventing alternate or root ports from becoming designated ports because of a
failure that leads to a unidirectional link
• Flex Link 2 interfaces to back up one another as an alternative to STP for basic link redundancy
• Link-state tracking to mirror the state of the ports that carry upstream traffic from connected hosts
and servers, and to allow the failover of the server traffic to an operational link on another Cisco
Ethernet switch.

Cisco IE 3000 Specifications

General

Operating Temperature	-40 to 75°C (-40 to 167°F)
DRAM	128 MB
Flash Memory	32 MB
Uplink Ports	2 x 10/100/1000Base-T or SFP
MAC Address Table Size	8000
Mounting	DIN rail, Wall