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Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
78-17058-01
Chapter1 Overview
Features
The switch has these features:
•Performance Features, page 1-2
•Management Options, page 1-3
•Manageability Features, page 1-3 (includes a feature requiring the cryp tograph ic versions of the
software)
•Availability Features, page 1-4
•VLAN Features, page 1-5
•Security Features, page 1-5 (includes a feature requiring the cryptograp hic version s of the swi tch
software)
•Quality of Service and Class of Service Features, page 1-6
•Layer 2 Virtual Private Network Services, page 1-7
•Layer 3 Features, page 1-7 (requires metro IP access image)
•Layer 3 VPN Services, page 1-8 (requires metro IP access image)
•Monitoring Features, page 1-8
Performance Features
•Autosensing of port speed and autonegotiation of duplex mode on all switch ports for optimizing
bandwidth
•Automatic-medium-dependent interface crossover (auto-MDIX) capability on 10/100 and
10/100/1000 Mbps interfaces and on 10/100/1000 BASE-T/TX small form-factor pluggable (SFP)
module interfaces that enables the interface to automatically detect the required cable connection
type (straight-through or crossover) and to configure the connection appropriately
•Support for routed frames up to 1546 bytes, for frames up to 9000 bytes that are bridged in hardware,
and for frames up to 2000 bytes that are bridged by software.
•IEEE 802.3x flow control on all ports (the switch does not send pause frames)
•EtherChannel for enhanced fault tolerance and for providing up to 2 Gbps (Gigabit EtherChannel)
or 800 Mbps (Fast EtherChannel) full duplex of bandwidth between switches, r oute rs, a nd se rvers
•Port Aggregation Protocol (PAgP) and Link Aggregation Control Protocol (LACP) for automatic
creation of EtherChannel links (supported only on NNIs)
•Forwarding of Layer 2 and Layer 3 packets at Gigabit line rate
•Per-port storm control for preventing broadcast, multicast, and unicast storms
•Port blocking on forwarding unknown Layer 2 unknown unicast, multicast, and bridged broadcast
traffic
•Internet Group Management Protocol (IGMP) snooping for IGMP versi ons 1, 2, and 3 for
efficiently forwarding multimedia and multicast traffic
•IGMP report suppression for sending only one IGMP report per multicast router query to the
multicast devices (supported only for IGMPv1 or IGMPv2 queries)
•IGMP snooping querier support to configure switch to generate pe riodic I GMP G ener al Qu er y
messages
•Multicast VLAN registration (MVR) to continuously send multicast streams in a multicast VLAN
while isolating the streams from subscriber VLANs for bandwidth and security reasons