Changing switching mode on Catalyst 2900-3500 Series
Exist a way to change a Catalyst switch 2900-3500 Series to Store-and-forward or Cut-through switching mode using the command line or this parameter is fixed and cannot be changed on this switchs models?
Re: Changing switching mode on Catalyst 2900-3500 Series
Cut-Through doesn't really make sense on switches that run ports at different speeds.
For example, if traffic is forwarded from a GE uplink to a user port running 10 Mbps, the switch would need to buffer the data anyway, essentially becoming a store-and-forward switch. And if traffic was sent the other way in a cut-through fashion, you'd need to slow down the uplink (which you can't really do, as soon as you've started clocking a packet onto the port).
You could in theory do cut-through between ports running at the same speed and store-and-forward between other ports, but as soon as you'd start mixing traffic (as you will on a LAN), that wouldn't work either.
So, in practice, all switches are store-and-forward today. (And, with FE, GE and 10G, the latency is so low anyway, that it doesn't really matter).
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.