Cisco NM-16ESW - EtherSwitch Switch, Техническое описание, Страница: 3 / 9

Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 3 of 9
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PPWR-DCARD-16ESW: One Cisco pre-standard PoE daughtercard for 16 port EtherSwitch NM
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PPWR-DCARD-36ESW: One Cisco pre-standard PoE daughtercard for 36 port EtherSwitch HDSM
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GE-DCARD-ESW: One GE (1000BaseT) daughtercard for EtherSwitch Modules
Features and Benefits
Table 1. Features and Benefits of Cisco EtherSwitch Modules
Features Benefits
16/36 10BaseT/100BaseTX Ports Delivers up to 200 Mbps of bandwidth (full duplex) Layer 2; forwards and filters backflow at full wire speed
on each port
Autosensing on each port Detects the speed of the attached device and automatically configures the port for 10- or 100-Mbps
operation
Integrated Switching Provides fewer points of management for remote and small branch offices
Support for 802.1P QoS Supports QoS based on the Institute of Electrical and Electronics Engineers (IEEE) class-of-service (CoS)
and port-based prioritization, allowing the switch to change the CoS settings of tagged packets on a per-port
basis
802.1Q Trunking Allows the setup of separate VLANs with tagged and untagged framing; trunking is used to save ports when
creating a link between two devices implementing VLANs
802.1D Spanning Tree (a Layer 2
link-management protocol that
provides path redundancy while
preventing undesirable loops in the
network) Simplifies network configuration and improves fault tolerance
Voice Virtual LAN (VLAN) feature for
IP Phones Enables phones to be placed into their own VLANs without the need for end-user intervention; a user can
plug the phone into the switch, and the switch provides the phone with the necessary VLAN information
Port-Based Reclassification for
Queues on each 10/100 that are
Configurable using a Weighted
Round Robin (WRR) Scheduler Enables users to prioritize mission-critical traffic, such as VoIP and IP-based video applications over regular
traffic
Media Access Control (MAC)-Based
Port-Level Security Prevents unauthorized stations from accessing the switch; Cisco fully supports the entire set of Requests for
Comments (RFCs)
Multifunction LEDs per Port for Port
Status Provide a comprehensive and convenient visual management system
Cisco IOS Command-Line Interface
(CLI) Provides configuration through Cisco IOS CLI and provides common user interface for all the router
functions
Multicast Management Support Offers Internet Group Management Protocol (IGMP) snooping in hardware for management support
Memory Features 4-/8-MB shared-memory architecture that is shared across all ports
SNMP Management Offers support for Simple Network Management Protocol (SNMP) Management Information Base (MIB)
manageable via a MIB browser
Cisco Pre-standard Power over
Ethernet (optional) EtherSwitch with the external power chassis or internal power supply upgrades can power Cisco IP Phones
and wireless access points
Gigabit Ethernet Support:
One or Two 1000BaseT Ports
per EtherSwitch Allows external connections to other switches and Gigabit Ethernet file servers. Required for intra-chassis
stacking of modules