Thank You Adrian Regards Anantha Subramanian Natarajan
On Fri, May 14, 2010 at 1:52 PM, Adrian Brayton <[email protected]> wrote: > I think the direction that you want to head in is "Control Plane"... > > > On May 14, 2010, at 12:16 PM, Paul Stewart wrote: > > > Maybe priority queue is a misuse of the term. But my understanding is > that in IOS, there is a special queue for packets tagged internally as > pak_priority (all routing protocols except bgp). This shields them from > going to class-default and effectively gives them access to the 100% - max > reservable bandwidth. Therefore they get priority to the tx-ring(but not > necessarily cassified in the priority queue I suppose?). I'm not sure how > different the ASA is in this regard. > > > > > > > > On May 14, 2010, at 11:41 AM, Brandon Carroll <[email protected]> > wrote: > > > >> I'd have to revisit this, because it's been some time since I've done > anything with it, but I recall something from the old QOS class about the > max-reservable bandwidth is defaulted to 75% of the link bandwidth so that > routing protocols and other traffic can have a little breathing room. Like > I said, I'll have to revisit this, but I think this may be the case. I > don't think routing protocol traffic actually uses the "priority" queue on > Cisco routers, unless you classify the traffic and put it there. > >> > >> Sorry if I'm off base here, just thinking out loud. > >> > >> > >> > >> Regards, > >> > >> Brandon Carroll - CCIE #23837 > >> Senior Technical Instructor - IPexpert > >> Mailto: [email protected] > >> Telephone: +1.810.326.1444 > >> Live Assistance, Please visit: www.ipexpert.com/chat > >> eFax: +1.810.454.0130 > >> > >> IPexpert is a premier provider of Self-Study Workbooks, Video on Demand, > Audio Tools, Online Hardware Rental and Classroom Training for the Cisco > CCIE (R&S, Voice, Security & Service Provider) certification(s) with > training locations throughout the United States, Europe, South Asia and > Australia. Be sure to visit our online communities at > www.ipexpert.com/communities and our public website at www.ipexpert.com > >> > >> Platinum Solutions Group (PSG) provides high-end consulting services > with a primary emphasis on Cisco's Data Center Solutions, Service Provider > Solutions, Unified Communications and Security-enabled infrastructures. Be > sure to visit www.platinumsolutionsgroup.com. > >> > >> > >> > >> On May 14, 2010, at 5:37 PM, Paul Stewart wrote: > >> > >>> I think this is not just an ASA thing. It seems that routing protocol > >>> traffic is always handled by the priority queue on a router as well. > >>> > >>> > >>> > >>> On May 14, 2010, at 3:06 AM, Anantha Subramanian Natarajan < > [email protected] > >>>> wrote: > >>> > >>>> Hi All, > >>>> > >>>> Was reading through Chapter 11(QOS) on the Cisco ASA:All-in-One > >>>> Firewall,IPS,Anti-X, and VPN Adaptive security appliance" book and > >>>> inferring > >>>> the below sentence from that > >>>> > >>>> "Certain critical keep-alive packets such as EIGRP hello packets are > >>>> never > >>>> dropped even if they are not prioritized in the shaped traffic" > >>>> > >>>> Have a question on that, > >>>> > >>>> 1) Is all protocols hello packets treated that way in Cisco ASA and > >>>> if so, > >>>> how Cisco ASA keeps track of that to have this exception. > >>>> > >>>> Thanks for the help > >>>> > >>>> Regards > >>>> Anantha Subramanian Natarajan > >>>> > >>> _______________________________________________ > >>> For more information regarding industry leading CCIE Lab training, > please visit www.ipexpert.com > > > >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
