Kind of out-dated, but useful reading: http://www.cisco.com/en/US/tech/tk543/tk544/technologies_tech_note09186a0080094612.shtml
-Tk On Sep 17, 2012, at 5:21 AM, Ivan <[email protected]> wrote: > Hi, > > I have a requirement to ensure all traffic across certain links have > particular CoS markings. Applying QoS polices on the links works but doesn't > capture router originated traffic - BGP, ARP, IPv6 ND etc. > > As a potential solution I have tested using IPv4 and IPv6 PBR to force router > traffic via lo0 > > route-map LP permit 10 > set interface Loopback0 > > ip local policy route-map LP > ipv6 local policy route-map LP > > and have set a QoS policy on lo0 > > interface Loopback0 > service-policy input LOOP0-IN > > this sets a qos-group which is matched the outgoing non-loopback interface > and sets CoS as required. > > As far as I can tell it works pretty well but I have a few questions > > 1) I don't think this works for ARP. I tried to match protocol arp using the > loopback0 policy but > > router(config-if)#service-policy input LOOP0-IN > 'match protocol arp' is not supported on input service-policy > > is there anyway to set the CoS value for ARP traffic from the router, ideally > only on some interfaces? > > 2) Is this configuration going to kill my router - maybe I am forcing some > process switching? > > Thanks > > Ivan > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
