Networks
I'm using a CISCO 2600 Series Router at my main office and I have CISCO 1601 at the remote offices, all connected via frame relay to the main office.
We're thinking of implementing VoIP, can I do traffic prioritization with the 1600s? Also, will they have any problems handling both data and Voice.
Thanks
by wlbowers
The newer versions of voip have several options concerning the packet size and durations.
The 2600 is a lock with the right software and programming. I've done it.
Not sure about the 1600. I have always used 1750's or better.
Lee
by wlbowers
The 2600 is capable of doing what you want and more.
Lee
by robotech
by dplewis
1600s do not support the essential mechanisms for running simultaneous Voice and Data - e.g. traffic classification, strict priority queuing, FRF.12 fragmentation and inter-leaving, weighted random early detect, etc.
Suggest you invest in new 1800 or 2800 series Integrated Services Routers. The 2600 might be all right but you'll need to upgrade the IOS and check you have the right Feature Set for the necessary features. This will almost certainly mean you'll need memory upgrades (DRAM and Flash).
Do not be under any illusions - the chances of your voice working if you don't treat it appropriately are NIL. Note Frame-Relay is particularly difficult to do VoIP on. COnsider this - how do you ensure that the voice traffic doesn't go into the 'burst' capacity on your PVC? If it goes into this it will be marked Discard Eligible and could easily be chucked away by your SP. Remember; it's the SP who decides which packets are marked with DE, not you. You can guarantee no packets are discarded by ensuring you do not burst above your CIR but that destroys one of the main benefits of using Frame! Consider going to a CoS enabled MPLS WAN...
by robotech
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