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Catalyst 2950 Desktop Switch Software Configuration Guide
78-14982-01
Ch apter 1 Overview
Features
This section describes the features supported in this release:
Note Some features require that you have the EI installed on your switch. For a list of the switches that support
the EI, see Table 1-1, or refer to the release notes for this release.
LRE Switch-Specific Support
The Long-Reach Ethernet (LRE) switches support all of these listed EI features in addition to some
specific features for LRE.
•Data, voice, an d video tran smission t hrough ca tegorized an d noncat egorized unshi elded
twisted-pair cable (Category 1, 2, and 3 structured and unstructured cable, such as existing
telephone lines) in multi-unit, multidwelling, and multitenant buildings
•Up to 15 Mbps of bandwidth to remote Ethernet devices at distances of up to 4921 feet (1500 m) on
each switch LRE port
•Compliance w ith Am erican National Stan dar ds In stitute ( ANSI ) a nd Eu ropean Telecommunicatio n
Standards Institute (ETSI) standards for spectral-mode compatibility with asymmetric digital
subscriber line (ADSL), Integrated Services Digital Network (ISDN), and digital telephone
networks
•Configuration an d monitor ing of conn ections be tween:
–
Switch LRE ports and the Ethernet ports on remote LRE customer premises equipment (CPE)
devices, such as the Cisco 575 LRE CPE and Cisco 585 LRE CPE
–
CPE Ethernet ports and remote Ethernet devices, such as a PC
•Support for connecting t o the public swit ched telep hone ne twork (PSTN) throu gh plain old
telephone serv ice (POTS) splitters such as the Cisco LRE 48 POTS Splitter
•Support for the rate selection, a utility that allows for automatic selection of transmission rates
through pr ofiles an d p rofile se quenc es
•A set of additional rate profiles
•Support for Reed-S olomon er ror corre ction
•Additiona l M IB sup por t
•Support for the secure shel l (SSH) and SNMPv3 cry pto, with a pro tected port on 585 CPE devices
•Support for sma ll for m-factor plugga ble (SFP) devices instead of g igabit interface co nverters
(GBIC); Giga Stack is not sup ported on the 2950 LRE
Note M ost Ca ta lyst 29 50 fe atu re s a lso work on t he C at al yst 2 950 L RE switc h, w it h th e differen ce th at L RE
switche s use Long- Reach Et herne t rather th an Fast Ethern et and Gigabi t for the Gigab it port s.
For informat ion about the Cisco LRE CPE devices, refe r to the Cisc o LRE CPE Hardware Installation
Guide. For information about the nonhomologated Cisco LRE POTS splitter, refer to the Installation
Notes for the Cisco LRE 48 POTS Splitter.
Ease of Use and Ease of Deployment
•Cluster M ana geme nt Suit e (C MS) softwar e for simpl if yi ng switc h and switc h cl uster m a nag eme nt
through a web browser, such as Netscape Communicator or Microsoft Internet Explorer, from
anywhere in your intra net