10-23-2013 04:27 AM - edited 03-04-2019 09:23 PM
Hello everybody,
I am trying to understand how BGP Route Poisoning works.
"Route poisoning
- When a router selects a neighbor as the best next hop, it makes sure that the neighbor is not pointing
back to the local router; it accomplishes this task by “poisoning” the router
(marking the route unreachable) and sending a withdraw message to that neighbor. "
1) Router A:
Received both updates and select the best path for 200.200.200.0/24 via Router B
2) Route Poisoning:
Router A send a withdraw message about the prefix 200.200.200.0/24 to Router B.
Is it correct?
--
Thank you in advance,
Dmitry
Solved! Go to Solution.
10-24-2013 12:24 AM
Hi Dmitry,
where does this BGP feature description come from?
I don't believe BGP works this way!
Possibly under some special conditions as discussed here 10 years ago:
https://supportforums.cisco.com/thread/8003
Best regards,
Milan
10-24-2013 12:24 AM
Hi Dmitry,
where does this BGP feature description come from?
I don't believe BGP works this way!
Possibly under some special conditions as discussed here 10 years ago:
https://supportforums.cisco.com/thread/8003
Best regards,
Milan
10-24-2013 01:30 AM
Hi Milan,
It is from SPNGN part 2. The text behind 1) and 2) it was my attempt to explain the process. Thank you for the historical overview 2003
I checked it again, asked Harold and now it is more clear to me. Thanks a lot! Thank you for your help!!!
--
Have a nice day,
Dmitry
10-24-2013 06:31 AM
Hi Milan,
Wow, 10 years ago. I feel old all of a sudden ;-)
Cheers
10-24-2013 07:57 AM
Hi Harold,
as long as we are able to read a write meaningfully, we are young guys! :-)
Best regards,
Milan
10-24-2013 10:05 AM
Hi Milan,
You are so right. I was just thinking that I have been contributing to this community for a long time. You have been for even longer. A lot of people on CSC have been around for a long time. I think this adds great value to CSC.
Regards
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