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Bug
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Resolution: Cannot Reproduce
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None
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Bugzilla Migration
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None
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Operating System: All
Platform: All
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8236
The BGP routes advertised very slowly when there are many routes in route table (200,000 routes). The advertise process takes hours and still not able to finish.
Problem:
- 200,000 routes in total.
- 4 routers are synced with controller.
- After all the routes are synced with the controller, restart one of the 4 routers. The rebooted router receives route very slowly.
There is no ERROR or WARN in the karaf log.
The wireshark capture shows a lot of retransmission for the UPDATE message.
I am suspecting the HIGH WATERMARK or LOW WATERMARK is too high caused the netty channel sent out too much data at a time. With some congestion on the network, netty fails to transmit all the UPDATE message efficiently.