Re:Does tuning the tx-ring limit make sense when outbound shaper
I could be wrong, but I have a feeling the hardware queue size is determined by interface speed. So let's say you decrease the hardware queue size to 5 this would cause more traffic to be put in memory which wouldn't be optimal. Once again I don't know the answer, so I'm taking a guess.
Re: Does tuning the tx-ring limit make sense when outbound shape
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It depends on you Bc and Be. (In your case, as you're using shape average, Be shouldn't apply.)
The shaper allows ingress to egress traffic at line rate and/or might dequeue at its maximum PPS rate. A burst that's "fits" within Bc (or if shape peek Bc+Be) could queue in the tx-ring.
Considering the performance capacity of an 891 and assuming you don't have LAN ingress bandwidth that oversubscribes the egress gig, I doubt there would be the need for deep tx-ring.
BTW, some of the later IOSs are supposed to minimize tx-ring when a service policy is applied. (This to minimize FIFO tx-ring queuing, before packets are placed into an interface policy [without shaper].) Are you sure tx-ring size is still 256?
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.