AdminDown is tearing down BGP session
Dear Birds, I am reaching out to seek assistance and guidance from the community regarding an issue we are facing with BIRD, specifically version 2.0.11, which we have been using in our network configuration. Our setup involves configuring BIRD with BGP+BFD, where BIRD initiates the BGP session establishment. However, we have observed an unexpected behavior: after the BIRD daemon successfully establishes the BGP connection, router sends a BFD Admin-down message and requests a new BFD session. This action by router leads to BIRD transitioning to a BFD down state and tearing down the previously established BGP session. According to RFC 5882, upon receiving BFD Admin down the BGP connection should not be terminated. If anyone has encountered a similar situation, your guidance would be invaluable in helping us address this problem. Any suggestions, recommendations, or workarounds would be highly appreciated. Best Regards, Sunnat Samadov
On Sun, Jun 04, 2023 at 06:06:22PM +0000, Sunnat Samadov wrote:
Dear Birds,
I am reaching out to seek assistance and guidance from the community regarding an issue we are facing with BIRD, specifically version 2.0.11, which we have been using in our network configuration.
Our setup involves configuring BIRD with BGP+BFD, where BIRD initiates the BGP session establishment. However, we have observed an unexpected behavior: after the BIRD daemon successfully establishes the BGP connection, router sends a BFD Admin-down message and requests a new BFD session. This action by router leads to BIRD transitioning to a BFD down state and tearing down the previously established BGP session.
Hi Sorry for late reaction. That is BIRD 2.0.11 on both sides? -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."
Hi. Thank you for your reply. On one side is BIRD v2.0.12 and on the other side is CISCO ASR. Best regards, Sunnat ________________________________ From: Ondrej Zajicek <santiago@crfreenet.org> Sent: Tuesday, June 13, 2023 5:09 PM To: Sunnat Samadov <sunnat.samadov@est.tech> Cc: bird-users@network.cz <bird-users@network.cz> Subject: Re: AdminDown is tearing down BGP session On Sun, Jun 04, 2023 at 06:06:22PM +0000, Sunnat Samadov wrote:
Dear Birds,
I am reaching out to seek assistance and guidance from the community regarding an issue we are facing with BIRD, specifically version 2.0.11, which we have been using in our network configuration.
Our setup involves configuring BIRD with BGP+BFD, where BIRD initiates the BGP session establishment. However, we have observed an unexpected behavior: after the BIRD daemon successfully establishes the BGP connection, router sends a BFD Admin-down message and requests a new BFD session. This action by router leads to BIRD transitioning to a BFD down state and tearing down the previously established BGP session.
Hi Sorry for late reaction. That is BIRD 2.0.11 on both sides? -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."
I am correcting myself. I gave the wrong version on the previous email. On one side is BIRD v2.0.11 and on the other side is CISCO ASR. BR, Sunnat ________________________________ From: Sunnat Samadov <sunnat.samadov@est.tech> Sent: Monday, June 19, 2023 2:50 PM To: Ondrej Zajicek <santiago@crfreenet.org> Cc: bird-users@network.cz <bird-users@network.cz> Subject: Re: AdminDown is tearing down BGP session Hi. Thank you for your reply. On one side is BIRD v2.0.12 and on the other side is CISCO ASR. Best regards, Sunnat ________________________________ From: Ondrej Zajicek <santiago@crfreenet.org> Sent: Tuesday, June 13, 2023 5:09 PM To: Sunnat Samadov <sunnat.samadov@est.tech> Cc: bird-users@network.cz <bird-users@network.cz> Subject: Re: AdminDown is tearing down BGP session On Sun, Jun 04, 2023 at 06:06:22PM +0000, Sunnat Samadov wrote:
Dear Birds,
I am reaching out to seek assistance and guidance from the community regarding an issue we are facing with BIRD, specifically version 2.0.11, which we have been using in our network configuration.
Our setup involves configuring BIRD with BGP+BFD, where BIRD initiates the BGP session establishment. However, we have observed an unexpected behavior: after the BIRD daemon successfully establishes the BGP connection, router sends a BFD Admin-down message and requests a new BFD session. This action by router leads to BIRD transitioning to a BFD down state and tearing down the previously established BGP session.
Hi Sorry for late reaction. That is BIRD 2.0.11 on both sides? -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."
participants (2)
-
Ondrej Zajicek -
Sunnat Samadov