Solved

factors behind migrating from cisco 1841 to cisco 2800

Posted on 2009-07-12
7
270 Views
Last Modified: 2012-05-07
Hi there,
I have a Cisco 1841 in one of the co-location and it handles VOIP based traffic ... It's not a gateway router as is in a typical VOIP setup, instead that role is performed by a Quintum CMS ... and similarly, there is a Linux box on which the H.323 gateway process runs ... Now this 1841 has been suffering from lots of problems lately and requires a manual restart every 2 to 3 months, sometimes even 1 month ... the error messages that cause the issue are either low on memory (and in tht case, i cant telnet/console) into the box ... other times, the utilization is around 99% ... and we have to restart the router to get it back to normal ....
In the past, I've looked for any known debugs on Cisco website for the IOS (C1841-ADVIPSERVICESK9-M), Version 12.4(9)T7 but there were not any .. I changed the IOS to (C1841-ADVIPSERVICESK9-M), Version 12.4(9)T20 but still the same issue and router CPU utilization either goes to 90 % at times or just runs low on memory ....

While I check the show interfaces commands to check the number of incoming/outgoing packets on its outside (internet) interface and DMZ interface, they normally average around 700-1000 packets/sec  ... Sometimes even more ....

What I want to know is generally the factors that are considered (any statistical information I'll be happy to give with) to know if its time to migrate to a higher model (if yes, which 1), else if we should change the box, etc ? Will appreciate ur valuable feedback !
0
Comment
Question by:nabeel92
[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
  • 4
  • 3
7 Comments
 
LVL 3

Expert Comment

by:Magim_IT
ID: 24837657

Hi,
 
Are you a non-profit organisation? If YES You may get special prices from Cisco
You can speak to Cisco and try split payment option
check out this link,
http://www.cisco.com/cisco/web/solutions/small_business/programs_promotions/index.html

If you have low budget then you can use low cost Cisco switches, here is the link
http://www.cisco.com/cisco/web/solutions/small_business/products/routers_switches/index.html

Do you really need 2821, how much WAN bandwidth do you have?
0
 
LVL 3

Expert Comment

by:Magim_IT
ID: 24837668

Sorry pls discard this answer, wrongly typed
0
 

Author Comment

by:nabeel92
ID: 24838056
sure, no problem..
price is not the concern, looking for technical factors here .... if there is any statistical information i can provide for expert to answer, let me know !
0
Simple, centralized multimedia control

Watch and learn to see how ATEN provided an easy and effective way for three jointly-owned pubs to control the 60 televisions located across their three venues utilizing the ATEN Control System, Modular Matrix Switch and HDBaseT extenders.

 
LVL 3

Accepted Solution

by:
Magim_IT earned 500 total points
ID: 24857698

How much bandwidth you have?

From my past experience and guidance from Cisco I follow this rule
1841 for less than 2MB
2811 for less than 4MB
2821 for less than 8MB
2851 for less than 16MB
0
 

Author Comment

by:nabeel92
ID: 24865970
well, the bandwidth is only 2 mbps ... its all voip traffic based on G.729 protocol ... but its just a lot of traffic ... we're planning to upgrade the bandwidth as well but for now, it seems that when so much of this traffic is sent, it effects the router's processing  ..
0
 
LVL 3

Expert Comment

by:Magim_IT
ID: 24866859
Just enable ip-accounting and check who is generating triffic to where, maybe you can block the unwanted traffic by applying access-lists
0
 

Author Comment

by:nabeel92
ID: 24875312
ok, we're purchasing teh 2800 anyway ... so all good now !
0

Featured Post

Threat Trends for MSPs to Watch

See the findings.
Despite its humble beginnings, phishing has come a long way since those first crudely constructed emails. Today, phishing sites can appear and disappear in the length of a coffee break, and it takes more than a little know-how to keep your clients secure.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
I want to know the number of Cisco 1921-sec / k9 ipsec vpn concurrent users? 4 57
Upgrading from Sonicwall Tz210 6 54
Bandwidth cap???? 8 97
Rogue RDP Connections 5 108
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.
PRTG Network Monitor lets you monitor your bandwidth usage, so you know who is using up your bandwidth, and what they're using it for.
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

734 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