Solved

Cisco WAN router & module recommendations

Posted on 2010-09-12
4
373 Views
Last Modified: 2012-05-10
A customer is asking for recommendations in replacing their WAN equipment w/ Cisco gear.  One of them is a Qwest T1 circuit currently terminating on an Adtran 3430 router. Our initial information led me to believe that this was a data-only T1, so I was preparing to scope a 1921 ISR w/ a T1 card in it (or even a lower end SR-520 router), either of which could've handled a single data T1 w/o a problem.

I've now been told that this T1 is actually being used as "a flexpipe for voice and data", which tells me that it's also providing PSTN access to the location in addition to Internet.  I've not as familiar w/ these types of setups, so I'm looking for help in how to build a router to handle this connection and replace the Adtran, which specific module(s) I might need, or what types of questions I should be asking before this can be determined.

0
Comment
Question by:cfan73
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 10

Expert Comment

by:ddiazp
ID: 33658210
How many voice channels does it handle?

Do the employees still use analog phones? Will they use analog phones after the change or is the company moving to VoIP?


If the idea is to keep things the same and just replace the equipment, a cisco 1700 series router would suffice (they're not very expensive either), and the card you're looking for is the "Cisco T1/E1 Multiflex Voice/WAN Interface Card"

Here's a list of part numbers that you need to look at to figure out which one exactly you need:

http://www.cisco.com/en/US/products/hw/routers/ps221/products_data_sheet09186a0080088715.html

All these can be used on a cisco 1700
0
 

Author Comment

by:cfan73
ID: 33658250
Hi - thank you for the input.   Few follow-up questions, if I may:

They have an existing Nortel phone system - it's one location, so no VoIP traffic to other locations, just PSTN.  I don't know how many voice channels the circuit is currently configured for/up to.  (The current onsite administrator is pretty new, and couldn't offer up much detail, either.)   Let's assume they have no analog device requirements.

1) So is that what a "flex pipe for both data means - that they've allocated some percent of the 24 channels for voice and the others for data?  Does the "flex" imply that this ratio can be balanced based on demand?  (for example, if there are only 5 voice circuits currently being used, the other 19 can be used for Internet data)?

2) Regardless, is the Cisco T1/E1 MFT VWIC capable of serving both functions via a single port?  (You can tell it to allocate # channels for digital voice trunks, and the others for normal data)?  

I think the 1700-series is End-of-Life...




0
 
LVL 10

Accepted Solution

by:
ddiazp earned 500 total points
ID: 33659389
1) This depends on the ISP, but generally they provide DBA (Dynamic Bandwidth allocation) which like you said, allows you to use the voice channels for data if they're not being used (you might wanna ask them)

2) Correct. This card is a "1-port RJ-48 multiflex trunk VWIC—T1", you can allocate what slots you want to designate for voice and data; here's a guide to configure voice ports
http://www.cisco.com/en/US/docs/ios/12_3/vvf_c/voice_port_configuration_guide/vpc_bk.pdf

along with this:

http://www.cisco.biz/en/US/docs/ios/12_0t/12_0t7/feature/guide/t1_mf_t6.html

Also, you might find this link useful:

http://www.velocityreviews.com/forums/t30413-configuring-a-t1-multiflex-trunk-port.html
0
 

Author Closing Comment

by:cfan73
ID: 33662920
Thank you!
0

Featured Post

SharePoint Admin?

Enable Your Employees To Focus On The Core With Intuitive Onscreen Guidance That is With You At The Moment of Need.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

In the hope of saving someone else's sanity... About a year ago we bought a Cisco 1921 router with two ADSL/VDSL EHWIC cards to load balance local network traffic over the two broadband lines we have, but we couldn't get the routing to work consi…
In the world of WAN, QoS is a pretty important topic for most, if not all, networks. Some WAN technologies have QoS mechanisms built in, but others, such as some L2 WAN's, don't have QoS control in the provider cloud.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, just open a new email message. In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…

735 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question