Link to home
Start Free TrialLog in
Avatar of Dragon0x40
Dragon0x40

asked on

CLAN, ELAN, etc used with VOIP systems

I have tried searching for what CLANs and ELAN (I think that I have seen other flavors of ?LAN boards.

What do the acronyms stand for and what function do they provide? And why do they seem to be 10mb half duplex?
ASKER CERTIFIED SOLUTION
Avatar of Soulja
Soulja
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of Dragon0x40
Dragon0x40

ASKER

I would guess the ones that I am interested in for VOIP would be Control Local Area Network (Avaya)  and Emulated Local Area Network but I would still like to know what functions they perform in the VOIP system.


http://www.networkworld.com/newsletters/lans/1018lan2.html

"If you want to run ATM in the backbone of your network, but you also want to hang on to Ethernet or token ring connections at endstations, look into LAN Emulation.

An emulated LAN is a set of clients and servers connected by virtual circuits over an ATM network. It consists of LAN Emulation clients and LAN Emulation servers. If a workstation is using an ATM card, the LAN Emulation client runs there, but if the workstation is using another LAN technology, the client runs in a proxy device, often a LAN switch."
I am looking for how clans and elans work in the context of voip systems. The clans are inside the Avaya equipment and I would like to know what they are accomplishing?
This is what I found but I would have liked something more in laymans terms:

TN799DP control LAN (C-LAN) interface
The TN799DP control LAN (C-LAN) interface provides TCP/IP connectivity over Ethernet or
Point to Point Protocol (PPP) to adjuncts such as the following:
¿ Avaya Call Management System (CMS)
¿ INTUITY AUDIX
¿ Distributed Communication System (DCS)
¿ printers
¿ call detail recording (CDR)
¿ property management systems (PMS)
The C-LAN operates at 10 or 100 Mbps and full duplex or half duplex, both of which are
administrable. The C-LAN provides connectionless UDP sockets for IP solutions support. The
C-LAN also supports 500 remote sockets, with support for 4-Kbyte UDP sockets. The C-LAN
supports variable-length ping and the traceroute and netstat network testing commands.
The C-LAN circuit pack provides call control for all IP endpoints that are connected to the
S8700-series Media Server using the G600 Media Gateway or G650 Media Gateway. A
maximum number of 64 C-LAN circuit packs can be used for each configuration. The number of
required C-LAN circuit packs depends on the number of devices that are connected. The
C-LAN number also depends on which options that the endpoints use. It might be
advantageous to segregate IP voice control traffic from device control traffic as a safety
measure.
A CLAN socket is a software object that can connect a C-LAN to the IP Network. A simple
calculation determines the default value for C-LAN socket usage of H.323 tie trunks. Divide the
total number of H.323 tie trunks that use sharing by 31. Each IP endpoint requires the use of
some number of C-LAN sockets. A C-LAN circuit pack supports a maximum of 500 sockets.
The C-LAN differs from an IP Media Processor. The difference is that the C-LAN controls the
call, while the IP Media Processor provides the codecs that are used for the audio on the call.

I found some good links:

http://www.telephonemagic.com/avaya-definity-pbx/avaya-definity-tn799-dp-control-lan-c-interface.htm

http://support.avaya.com/elmodocs2/comm_mgr/r3/IP_GUIDE_3.0.pdf 

http://support.avaya.com/css/P8/documents/100018203

http://support.avaya.com/elmodocs2/audio_quality/lb1500-02.pdf

http://support.avaya.com/elmodocs2/comm_mgr/r4_0/avayadoc/03_300151_6/245207_6/245207_6.pdf