[ninux-not-wireless] [Ninux-Wireless] Cisco nel Networking (was: Una nuova tecnologia che suona interessante)

[Stefano Pilla]

Spostiamoci su Not-Wireless perchè di wireless questa discussione ha ben
poco.... :-)
La rigiro ancora qui in ML Wireless per chi non è iscritto ancora e
volesse continuare a seguire la discussione...

Il 4/21/12 7:53 PM, Claudio ha scritto:
> non per aprire un flame (o meglio per chiuderne uno sul nascere) ma
> [citation needed] e in diversi punti pure.
>
....che Cisco ha avuto un ruolo fondamentale (come molte altre aziende)
per lo sviluppo di Internet e del Networking in generale è
risaputo...Non è stata sicuramente l'unica ma sicuramente ha contribuito
in maniera decisiva (provate a dimostrare il contrario piuttosto...) ;-)

Dette queste chiacchiere passiamo ai fatti.....

Solo alcune annotazioni (e non di certo inventate da me ;-) ):

Cisco is a member of more than 70 world standards bodies and forums.
Cisco employees hold more than 30 leadership positions (for example,
board members, chairs) in IETF, IEEE, ITU, Wi-Fi Alliance, and other
important standards organizations.
Cisco contributions include almost 300 RFC authors and 800 RFCs (source:
www.arkko.com/tools/stats/index.html).
Cisco representation at IETF meetings is, historically, more than twice
that of the next vendor, and the difference increases exponentially over
other vendors.
Cisco received the ITU-T Commemorative Award for outstanding
next-generation network (NGN) contributions.

Vi posto solo alcuni *piccoli* *contributi* che Cisco ha dato al
Networking....

*Network Connectivity: IEEE 802.3u Fast Ethernet*
Introduced in 1995, Fast Ethernet increased Ethernet LAN speeds from 10
Mb/s to 100 Mb/s. Cisco's Fast Ethernet technology served as the basis
for the IEEE 802.3u standard. Further Cisco contributions helped form
Gigabit Ethernet, 10 Gigabit Ethernet, and now 40/100 Gigabit Ethernet,
making sure that Ethernet will continue to serve as the principal
connection for the vast majority of networking and networked devices.

*IP Routing (Exterior): IETF Border Gateway Protocol*
The Border Gateway Protocol (BGP) is the core routing protocol of the
Internet, maintaining a table of IP networks and making routing
decisions based on path, network policies, and/or rule sets. BGP allows
the Internet to function as a truly decentralized system. Cisco's
Internet Gateway Protocol (IGP) served as the basis for the BGP standard.

*LAN Switching: IEEE 802.3ad "EtherChannel"*
Developed in the early 1990s, Cisco's EtherChannel is a link aggregation
technology that allows operators to group several physical Ethernet
links to create one logical Ethernet link for the purpose of providing
fault tolerance and bundled high-speed connections among switches,
routers, and servers. Cisco's EtherChannel served as the basis for the
802.3ad standard.

*IP Traffic Direction: IETF Multiprotocol Label Switching*
Multiprotocol Label Switching (MPLS) is a highly scalable, Data Link
Layer--independent delivery mechanism that directs and carries data from
one network node to the next. Standards work commenced in 1996, and
large-scale deployments of MPLS began in 2001. Cisco's Tag Switching
technology (first shipped in 1997) developed into Label Switching in
collaboration with IBM Research. Label Switching then drove the final
MPLS standard: a standard that plays an ever-increasing role in both
service provider and large enterprise networks. Owing to this vital role
MPLS plays within public and private networks, Cisco has released a
number of books promoting the effective and secure use of MPLS.

*Wireless LAN: IEEE Control and Provisioning of Wireless Access Points*
Control and Provisioning of Wireless Access Points (CAPWAP) simplifies
the configuring, monitoring, and troubleshooting of large wireless LANs
(WLANs) through consolidated control. CAPWAP also allows network
administrators to more closely monitor and analyze WLANs. Cisco's
Lightweight Access Point Protocol (LWAPP) served as the basis for the
CAPWAP standard.

*Wireless WAN: IEEE 802.16 WiMAX*
WiMAX standards are established by the IEEE 802.16 working group and
WiMAX products are certified by the WiMAX Forum. Cisco contributed
primary technologies to the IEEE 802.16 standard and continues to work
on the next-generation 802.16m standard. Additionally, Cisco also
introduced important concepts that are now mandatory in WiMAX Forum
product requirements and certification tests.

*Network Security: IEEE 802.1Q Virtual LANs*
A virtual LAN (VLAN) is a logical group of networked devices that
communicate as if they were attached to a broadcast domain, regardless
of their physical location. VLANs provide for greater scalability,
heightened security, and improved network management. Cisco's
Inter-Switch Link (ISL) preceded the 802.1Q standards and contributed to
the development and later adoption of 802.1Q.

*Network Power: IEEE 802.3af Power over Ethernet*
Power over Ethernet (PoE) technology safely transfers up to 15.4 watts
of DC power---alongside traditional Ethernet traffic---to remote devices
over Category 5 cable. Cisco first shipped PoE-capable switch ports in
2000 and laid the groundwork for the 802.3af PoE standard that was
ratified in 2003. Cisco was the first vendor to ship products based on
the 802.3af standard.


E potrei continuare per un bel po se volete..... ;-)

Quindi se ora abbiamo una piccola rete cittadina in cui tutti siamo
collegati in wireless e possiamo collegarci tra di noi e portare su un
singolo cavo di rame non solo dati ma anche l'elettricità per accendere
l'antennina sicuramente una piccola parte di tutto questo la dobbiamo
anche a Cisco...(naturalmente nulla togliendo a chi ha montato il tutto
;-) )

@MenteLibera....permettimi di dirti una cosa senza offesa..... il
problema di Cisco sai qual'è? Sono proprio gli "adepti" che parlano come
te...che sparano per "sentito dire" (almeno è questa l'impressione che
hai dato!) senza dare uno straccio di prova e uscirsene dalla
discussione dicendo "...poi come si dice cisco indottrina bene i suoi
adepti....." ...!!!!

My 2 Cents....

-- 
Stefano Pilla

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Web: http://www.stefanopilla.it | http://www.clorofillaroma.it
E-mail: me[at]stefanopilla.it | stefano.pilla at clorofillaroma.it

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