Lab Minutes Forum
Technical Discussion => Routing and Switching => Topic started by: ackld on February 21, 2014, 02:49:25 PM
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Hi there,
I am having issue with the following simple equal cost redudant links using OSPF 1 area 0.
Fa0/0 172.16.1.0/30 Fa0/0
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R1 R2
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Fa0/1 172.16.1.4/30 Fa0/1
R1 has got LAN network 10.10.1.0/24
R2 has got LAN network 10.10.2.0/24
I have created basic OSPF and both work fine. and advertised both physical link and LAN.
Show ip route on each router indicated equal cost balancing.
So far so good. But now there is a task that requires OSPF updates learnt by R1 and R2 must be guaranteed. I am confused. How do I implement this?
Should it be something like:
class-map match-all CM-OSPF-UPDATE
match protocol ospf
policy-map PM-OSPF-UPDATE
class CM-OSPF-UPDATE
priority 256
class-map match-any CM-ALL-OTHER-TRAFFIC
match any
Policy-map PM-ALL-TRAFFIC
class CM-ALL-OTHER-TRAFFIC
--> HOW TO SET TO BEST EFFORT FOR THE OTHER TRAFFIC HERE?
service-policy PM-OSPF-UPDATE
R1 & R2
int fa0/0 & int fa0/1
service-policy output PM-ALL-TRAFFIC
I have doubt that I have done it correctly.
Does OSPF fall under the category of IP Precendence 7?
If it does how do I re-enforce that routing update has been hardcoded using IP Prec 7
or should I use priority borrowing LLQ?
Please help..
Thanks
Rick
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I don't think I have seen people putting routing control traffic in priority queue. However, guaranteeing BW is common and you can usually classify it with CS6. You can do a quick Wireshark capture to confirm the DSCP marked on the OSPF