North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: T1 Circuit actual throughput 1290Kbps
:: Dorian Kim writes :: > > While this doesn't seem to apply to Tony's case, I wouldn't make a blanket > statements like that. If the T1 is provisioned ESF, yes you can get > 1536 kbps, but there are places where you still can only get SF/D4 framing. Why would SF/D4 framing reduce the available bandwidth? In some cases, if you can't get B8ZS line coding, and have to use AMI, you might have to drop to 24x56=1344kbps (and use one bit on each DS0 to maintin 1's density), but even then, if your routers or DSUs can invert the data, you can still go 24x64=1536kbps. (HDLC guarantees zero-density ... so if you invert it, you get guaranteed 1's density.) - Brett ([email protected]) ------------------------------------------------------------------------------ ... Coming soon to a | Brett Frankenberger .sig near you ... a Humorous Quote ... | [email protected]
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