| Author |
splitting a PRI connection
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| rstephenp 2001-05-03, 6:13 am |
| HI,
One of my friends clients place they have taken a PRI connection (E1) having 30 channels & they have given each channel to each dept. for net. access. There are 30 depts. in the organisation.
I understand they must have used a de multiplexer in splitting the channel. Can anyone help me how they must have done it.
they are using a 3600 series router in the office.
Regards
rstephenp | |
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| whytokayok 2001-05-13, 1:03 am |
| Times slots were created but how did they assign a slot to a department? Did each department have their own router to receive their channel? | |
| rstephenp 2001-05-14, 12:14 am |
| Hi,
I dont think so but i am not sure. It does not make sense having 30 routers or a little fewer than 30 for each department.
I could'nt get hld of my friend of late. I'll try tracking him down. The problem is he is a site engg. for a govt. organization. The rules pertaining to govt. offices is very strict
Regards
rstephenp | |
| whytokayok 2001-05-16, 11:18 am |
| I know you can create a voice group on a MFT and set a side some clear channels for data but I'm intrested in knowing their routing scheme for the data. Then again, they maybe running Voip and the PBX is routing voice data. You would only need a single router for that... | |
| uckertr 2001-05-16, 1:10 pm |
| Hi!
At first view, I'm not sure I understand the question, but here is an example config of a channelized E1 (relevant parts only):
controller E1 0/0
channel-group 0 timeslots 31
channel-group 1 timeslots 1
channel-group 2 timeslots 2
channel-group 3 timeslots 3
interface Serial0/0:1
description xxxxx
ip unnumbered FastEthernet0/0
encapsulation ppp
ip mroute-cache
!
interface Serial0/0:2
description xxxx
ip unnumbered FastEthernet0/0
encapsulation ppp
ip mroute-cache
!
interface Serial0/0:3
description xxx
ip unnumbered FastEthernet0/0
encapsulation ppp
ip mroute-cache
ip route x.x.x.x 255.255.255.240 Serial0/0:1
ip route y.y.y.y 255.255.255.248 Serial0/0:2
ip route z.z.z.z 255.255.255.252 Serial0/0:3
bye! | |
| whytokayok 2001-05-17, 8:29 pm |
| Yep..... I would also think you would multilink the channels??! And what if each department had one NT box with two network cards. One network card could be the default gateway with the rest of the devices in the department pointing to it. Then you wouldn't need all those routers... Just a thought!! 
whytokayok | |
| uckertr 2001-05-18, 12:55 am |
| Hi!
and what do you use between the NT and the leased line modem?
a router...
or you could use a linux box with a comx card instead of the NT... then you don't need the router, because the linux will act so...
bye! | |
| whytokayok 2001-05-18, 11:26 am |
| I'm not sure if Linux would be able to create the sub-interfaces needed to bind a channel-group to. At least one router would be needed between the ISDN modem and the other department networks. | |
| uckertr 2001-05-19, 2:46 am |
| Hi!
the mentioned comx (slicecom) card can handle a channelized e1...
and no router needed...
http://www.itc.hu/index_en.html
synchronous cards
slicecom
bye! | |
| rstephenp 2001-05-19, 6:33 am |
| Are drivers supported for the above card meant for linux. DO you hzve any idea for the drivers for other Operating system
Thanxs for searching for a good product & posting. I am convinced now with the solution.
Regards
rstephenp
-------------------
Hi!
the mentioned comx (slicecom) card can handle a channelized e1...
and no router needed...
http://www.itc.hu/index_en.html
synchronous cards
slicecom | |
| whytokayok 2001-05-19, 11:17 pm |
| Will this card bind a timeslot to a sub-interface like the 2600 or 3640 router will? This will be the key to allow each department to have their own 64k channel? | |
| uckertr 2001-05-20, 11:05 am |
| Hi!
I've seen only linux drivers...
I used one of the other cards only. The hicomx card was used for a small ISP, with two 2Mbps channel, one of them frame-relay... The linux box acted as a border router with BGP... It worked very well!
back to slicecom...
The linux term is interface alias, but yes, it's like subinterface... I haven't used it, but one of my friends is a proud owner of this type of card... He said, if someone hasn't got enough money for a router, this card is a very good solution... The price of a server with this card is about 10% of a Cisco 3640...
bye! | |
| whytokayok 2001-05-20, 11:11 pm |
| Sounds good.... Thanks. I've bookmarked the web site for future reference  |
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