Garrett D'Amore wrote:
> jack wrote:
>> I can't get much over 25 KB/s on a 512 KB/s cable connection.
>> ifconfig shows
>> nge0: flags=201004843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,IPv4,CoS>
>> mtu 1500 index 2
>> inet x.x.x.x netmask fffffc00 broadcast 24.224.11.255
>> dladm show-dev shows
>> LINK STATE SPEED DUPLEX
>> nge0 up 100Mb full
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>>
> A few thoughts:
>
> 1) 512KB/sec would be 4Mbps. Are you sure this is what you really
> have? Most cable and network vendors talk about performance in terms of
> bits per second, while downloads are usually measured in bytes per
> second. (I.e. don't mix up bits and bytes...) (25 KB/sec is 200Kbps.)
>
> 2) You may have congestion on your cable segment. The cable modem
> segment is shared by all subscribers in an area (typically a small
> neighborhood or block or street).
>
> 3) The problem could exist at the end of the connection -- not sure how
> you're estimating bandwidth. Many sites have considerably less than
> 4Mbps to offer to each and every client that does a download. Some
> sites even intentionally throttle back bandwidth to prevent a single
> client with a good connection from starving out clients with poorer
> connections.
>
> 4) There could be a problem at your ISP.
>
> 5) Its pretty unlikely that the problem exists at your end. But you
> could check that everything has negotiated duplex, speed properly, etc.
> And you could try replacing cables in case you have a particularly
> crummy cable. (Look at the statistics in nge using netstat -i to see if
> you have high error counters.)
>
> -- Garrett
>
thanks for reply.
netstat -i does not look good to me.
Ierrs 253285 Oerrs 75504
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