Hold time expired error

Janvier Rwakagabo janvier.r at ricta.org.rw
Thu Aug 3 17:32:06 CEST 2017


Find my comments in red.

 

Thanks

 

Regards,

 

Janvier R.

 

From: Bird-users [mailto:bird-users-bounces at network.cz] On Behalf Of Jonathan Stewart
Sent: Thursday, August 3, 2017 4:06 PM
To: Ajai Kumar <joinajay1 at gmail.com>
Cc: bird <bird-users at network.cz>
Subject: Re: Hold time expired error

 

If you cannot ping across your IX, you need to look lower than BIRD to figure out the problem.

I can ping the IP through IX 

 

 

I would try to answer questions like: Is ARP resolving IPs to MACs?  

Yes ARP is resolving IPs to MACS

 

Is the problem isolated to a single BIRD server only?  

Yes the problem occurs now on new one I am installing, the other BIRD installed later are working properly 

 

Is it only IPv4 problem only,

Yes it is an IPv4 problem, 

 

or IPv6 as well?

 

If you can answer some of these questions, you'll get closer to finding the root cause, I expect.

 

Cheers,

Jonathan

 

 

 

On Thu, Aug 3, 2017 at 2:25 AM, Ajai Kumar <joinajay1 at gmail.com <mailto:joinajay1 at gmail.com> > wrote:

Dear All,

We are facing problem with few peers in our IX.   Frequently they get Hold Timer Expired Error and they are not able to ping our route server IP. After shut no shut this problem resolves for sometime.  One log message appended 


bgp_hold_timeout:4690: NOTIFICATION sent to X.X.X.X (External AS 132953): code 4 (Hold Timer Expired Error), Reason: holdtime expired for X.X.X.X (External AS 132953), socket buffer sndcc: 57 rcvcc: 0 TCP state: 4, snd_una: 728368567 snd_nxt: 728368624 snd_wnd: 15744 rcv_nxt: 429172199 rcv_adv: 429188583, hold timer out 90s, hold timer remain 0s


Requesting for help pls.

Regards,

Ajai Kumar 

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     Jonathan

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