?
Solved

VoIP Readiness Assessment Traffic data collection: Probe/Endpoint locations?

Posted on 2005-04-13
1
Medium Priority
?
599 Views
Last Modified: 2008-01-09
VoIP Readiness Assessment Analysis: Probe/Endpoint locations?
*What criteria? How do you determine where to place the probes?
After much researching, i have not found this specific info?
--------------------------------
Senario: 15,000 Node multi-floor Network/Average mid-range IT budget/5000/5500 Cisco
[Describe, diagram or layout any average Core Backbone Router/Switch infrastructure for this environment]
---------------------------------
Goal: Collect all data traffic without disturbing existing Network/Engineers will analysis later.
On-site assessment to assess the network, compile and collect data and make a broad assessment of traffic patterns within the network - Engineers will prepare recommendations
---------------------------------
*Which Analyzer/Hardware vs Software? Prognosis? Qualys? MBSA? ClearSight? NetIQ? LanStat? LanSurveyor? Other?
*How many probes will be required & Where should the probes be placed?

Example: Cisco IOS Devices allow synthetic data collection.
Setup SPAN/port mirroring at the core switch/router to collect traffic data.

*How do we collect/what rules determine data collection for all traffic accross entire LAN.
WAN sites another issue at another tiem.

If 12,000 nodes get IP phones, it seems that all subnets/VLANs/Switch traffic would need to be collected and yet that seems way to granular?

What am i overlooking?  Thanks for the input!
0
Comment
Question by:kbbcnet
1 Comment
 
LVL 7

Accepted Solution

by:
minmei earned 2000 total points
ID: 13781060
Pick 4 client sites (user PC's that would probably have a phone). If you have VLANs, pick one site in each vlan. Place another probe where the VoIP server would sit (server VLAN, or off core switch, or wherever it would be placed in the network.)

Since the VoIP traffic will be segregated into a number of separate VLANs, You may want to look at a separate default router for these VLANs

I would start by using SPAN (or something equivalent) on the switches with a PC running ethereal. THis can get a good 10 minutes of traffic that can begin the analysis and start you in the right direction of what problems exist in the network.

The tools above are great (if you have a lot of time to set them up and run the baselines they require). NetIQ is probably my favorite.

What are you looking for advice on?
0

Featured Post

Granular recovery for Microsoft Exchange

With Veeam Explorer for Microsoft Exchange you can choose the Exchange Servers and restore points you’re interested in, and Veeam Explorer will present the contents of those mailbox stores for browsing, searching and exporting.

Question has a verified solution.

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

As companies replace their old PBX phone systems with Unified IP Communications, many are finding out that legacy applications such as fax do not work well with VoIP. Fortunately, Cloud Faxing provides a cost-effective alternative that works over an…
Skype is a P2P (Peer to Peer) instant messaging and VOIP (Voice over IP) service – as well as a whole lot more.
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an anti-spam), the admin…
As many of you are aware about Scanpst.exe utility which is owned by Microsoft itself to repair inaccessible or damaged PST files, but the question is do you really think Scanpst.exe is capable to repair all sorts of PST related corruption issues?
Suggested Courses
Course of the Month16 days, 18 hours left to enroll

862 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