12-12-2012 04:01 AM - edited 03-04-2019 06:23 PM
Hello,
Question; I am running OSPF over a 2Mbit leased line that forwards a lot of FTP traffic. During peaks traffic seems to fill up the line so much that the OSPF hello packets do not make their way over the line before the dead timer expires. I've had an idea to apply QoS to permit the self-generated OSPF traffic to fall into a priority queue - always having 10% of the link capacity dedicated to service these flows but I seem to be not successful with the following configuration that I've applied;
Extended IP access list ospf-marking
10 permit ospf any any
route-map OSPF-Marking permit 10
match ip address ospf-marking
set ip precedence network
ip local policy route-map OSPF-Marking
class-map match-all Routing_Policing
match ip dscp cs7
policy-map Routing_Policing
class Routing_Policing
priority percent 10
interface FastEthernet0/1
description 2Mbit leased line
ip address x.x.x.x y.y.y.y
service-policy output Routing_Policing
I've also tried to run NBAR in a class map matching OSPF traffic and setting dscp cs7 with a policy map.
In short;
How do I mark self-generated OSPF traffic to be prioritized over an outgoing 2Mbit Leased Line?
Thanks, Best Regards
Jhonny Eriksson