Ospf fast convergence recomendation

Created: Feb 27, 2019 12:42:49Latest reply: Mar 8, 2019 10:05:47 187 8 0 0
  Rewarded Hi-coins: 0 (problem resolved)

Scenario: Ring using ospf, ldp and bgp l2vpn.

Desired: Fastest posible peer down detection

Devides: S6720

Options: ospf bfd, OSPF Smart-discover, ospf hello timers


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chenhui  Enthusiast Technician   Created Feb 28, 2019 17:38:41 Helpful(0) Helpful(0)

it's recommanded to contact the TAC or huawei engineers to get the further help, because the best choice depends on your topology.
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AGregory Created Mar 2, 2019 00:30:31
Could you indicate the contact here in Brazil?  
chenhui Reply AGregory  Created Mar 2, 2019 19:43:26
the phone number in Brazil is 0-8005953456(Backup Tel: 00524435283456), E-mail: LASupport@huawei.com for more contact infomation, please refer to https://e.huawei.com/en/service-hotline-query  
PeeFooFeng     Created Feb 27, 2019 12:51:02 Helpful(0) Helpful(0)

Please describe in detail on your needs.
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sim_157  Visitor   Created Feb 28, 2019 13:58:31 Helpful(0) Helpful(0)

I'd prefer BFD, it's easier to understand and implement.
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sim_157  Visitor   Created Feb 28, 2019 14:01:39 Helpful(0) Helpful(0)

by the way, it's not recommanded to lower the hello interval, though this could help detect the link failure, but it will cost more bandwidth, and this won't help ospf reroute effectively.
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sim_157  Visitor   Created Feb 28, 2019 14:03:30 Helpful(0) Helpful(0)

for example, when set hello interval to 1s, what if the link turns to down after the router receives the hello packet, this won't help router notice the link faiule immediately.
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AGregory     Created Mar 8, 2019 10:05:47 Helpful(0) Helpful(0)

Thanks all , got excellent convergence time with bfd on path failure detection and ospf p2p interfaces for fast neighbor establishment on path recover.
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