I would like to understand the root cause for ignored packets , I have a 2811 router with 2 FE I'm seeing input erro /ignored packet count increasing on one FE which is connected to the service provider - 30 Mbps Ethernet circuit.
As per cisco doc's this can be possible due to faulty interface or over load , In this case I don't see the traffic to be over loaded so I have tried changing the Router but still I see ignored / input errors increasing very frequently.
Due to this ignored packet count , We are facing performance issue wrt video conferencing , Any suggestions.
The 2811 is rated at 120 Kpps (CEF), so in theory, it can handle 30 Mbps (duplex), but in practice, you need to allow CPU for other purposes, and occasional non-CEF forwarding. We also want to avoid situations (i.e. proper sizing) where a software based router's CPU is likely to be run full out.
In other words, for 30 Mbps (duplex) I would recommend a more powerful ISR; perhaps a 2851.
BTW, what I suspect the issue is, if data can be sent to your 2811, in bursts more than 30 Mbps, the ignored packets might be happening during such bursts.
Another approach might be to slow you interfaces to 10 Mbps and use QoS to manage the occasional traffic congestion. Yes, you give up some bandwidth, but you then are able to guarantee performance.
Thanks for your response , On a real time I noticed the traffic on 2811 was around 3-4 Mbps during which I observed the ignored packet.So I'm sure there is no congestion causing this issue.
To isolate the issue probably I may need to swap the link to a upgraded ISR and observe also I don't see any issues apart from this ignored count on the interface so Im assuming there is no problem with service provider.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.