[c-nsp] difference between "bandwidth" and "priority" command inpolicy

[Ziv Leyes]

I've always had a problem with the semantics of this, perhaps I need to go back to highschool? Or perhaps Cisco programmers instead??

When I say this link will have this bandwidth it sounds to me like it's a dedicated bandwidth that limits the link to the given value.
When I say priority I think of a link with several clients where one of them gets priority over the others, but in case there are no others it can get more.

When I check the books it all looks to be the opposite way, why!?!?!?

Also, what about "police"?
Ziv


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Oliver Boehmer (oboehmer)
Sent: Wednesday, June 04, 2008 8:44 AM
To: Everton Diniz; cisco-nsp
Subject: Re: [c-nsp] difference between "bandwidth" and "priority" command inpolicy

Everton Diniz <> wrote on Tuesday, June 03, 2008 8:20 PM:

> Hi all,
>
> What is the difference between "bandwidth" and "priority" command in
> policy-map?
>
> class REAL-TIME
>   priority 722
> class SAP
>   bandwidth 389

short answer:
"priority" configures a low-latency priority queue (along with a policer
dropping traffic above the configured rate). "bandwidth" configures the
queue weights to implement a minimum bandwidth guarantee for the class.
More traffic can be sent if BW is available..

more verbose:
http://www.cisco.com/en/US/tech/tk543/tk757/technologies_tech_note09186a
0080103eae.shtml

        oli
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