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Webcast-Catalyst9k
New Member

BGP updates and memory

Question for you...I have a router 2821 that is running out of memory quickly, till I can upgrade the memory what can I do to lesson the memory strain on the router if any?? thank you in advance for your help

5 REPLIES
Bronze

Re: BGP updates and memory

The main question is what are you currently doing on your router? The subjec mentions BGP. If you are doing BGP peering on this router and taking full Internet tables, this is why you are running out of mem. Best thing to do would be to take partial routes or just a default route (if you are not multi-homed) until you can get a router that can handle the amount. If that is not the case, are you doing nat? Nat can be pretty hard on your resources if you have a lot of virus/worm traffic or p2p traffic heading out to the Internet. If these are not the case, you might have an IOS image that suffers from a mem leak. To fix this, you would just need to upgrade your IOS. Hope this helps.

New Member

Re: BGP updates and memory

yes we are taking in the full internet table,

Re: BGP updates and memory

I agree with the first reply.

Also check this link might help:

Troubleshooting High CPU Caused by the BGP Scanner or BGP Router Process

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a00801c4f48.shtml

Vlad

New Member

Re: BGP updates and memory

Here is another article that discusses how to optimize your memory use when running BGP.

BGP Memory Article

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094a83.shtml

New Member

Re: BGP updates and memory

Thank you everyone for replying the situation has been fixed by filtering routes that are directly connected to my peer so that way my router doesn't

have to keep track off all the routes on the internet. I found out that my router was keeping track of all the routes on the internet. Thank you again for all your help and suggestions I greatly appreciate it!!!!!

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