I am in the process of having a channelised E1 line installed and am having some problems getting to grips with timeslot allocation. If I am using a 2620 with a single controller do all timeslots have to be allocated to this single controller and if so is it possible by some other means to allocate subsets of the available bandwidth to various client sites ?
Yes, Coordinate the channels you use with your Telco/carrier as you order bandwidth to your other sites over your E1. Simply configure a new channel-group under the controller and specify the timeslots for each new interface you need. This creates the serial interface for that group of channels matching the bandwidth of the number of timeslots. For example if you have two remote sites each of 256k this would be 4 timeslots each...
controller e1 0/0
channel-group 1 timeslots 1-4
channel-group 2 timeslots 4-8
You will then find you have two new interfaces...
serial 0/0:1 and serial 0/0:2
The last digit being the channel-group number from above. Assuming the E1 is in slot 0/0.
The Telco/carrier must obviously multiplex the same channels on the E1 to the two remote sites. The most common problems are the framing and incorrect configuration of the E1 by the carrier to use Q931 signalling this becomes obvious if you cant use channel 16. In this case you'd find a high error CRC error rate on the circuit.
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.