[c-nsp] Serial T1/E1 Card

[Shakeel Ahmad]

Peter,

This is not a pure E1 as when we talk about E1/T1 channel - your CSU/DSU is
builtin on chipset of the WIC.

This is just a serial interface and speed limit can be applied by software
or by limiting clocking sometimes - oftenly telco's like BT manage clocking
at their end. Serial interface can happily get atmost 2Mbps but not more
than that - if you need more speed on serial - you need to get HSSI WIC
(High Speed Serial interface) interface is a bit different.

I do operate networks in London/Bristol and i have few circuits working on
pure digital unframmed E1 steams which involve CSU/DSU builtin on WIC.

My suggestion would be that you should enable "ip accounting output-packets"
on serial interface to view raw data but best option would be to enable
netflow and capture flow statistic to view whats and how is it going on.

Shakeel


On 1/9/07, Peter Hicks <peter.hicks at poggs.co.uk> wrote:
>
> Tom wrote:
>
> > That card uses an external CSU/DSU.  Have you looked at the settings
> > on the CSU/DSU?  I believe it needs to have timeslots set 1-32 for E1
> > (sorry - no real E1 hands on experience).  A full T1 will be using
> > timeslots 1-24.
>
> Over here in London England, we don't use CSU/DSUs - $TELCO normally
> presents
> on 15-pin D, RJ45 or dual coax and that's it.  No need to worry about
> channelization.
>
>
> Peter
>
> --
> Peter Hicks | e: my.name at poggs.co.uk | g: 0xE7C839F4 | w: www.poggs.com
>
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