I have 100 bgp neighbors and one of them is down how to fix it?

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I have 100 bgp neighbors and one of them is down how to fix it?

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1)Check reachbility for the neighbor ip which is showing down.

2)Check nothing is blocking port 179 on the way.

3)Check authentication password if configured.

Apart from this nothing can bring down bgp neighborship.

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  1. in Filesystem.php line 111
  2. at HandleExceptions->handleError(2, 'file_put_contents(/var/www/html/storage/framework/sessions/Di2Bo9Jp4gUqdO50dXFI7i7rghw7ir3YqcQK8csm): failed to open stream: No space left on device', '/var/www/html/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php', 111, array('path' => '/var/www/html/storage/framework/sessions/Di2Bo9Jp4gUqdO50dXFI7i7rghw7ir3YqcQK8csm', 'contents' => 'a:4:{s:6:"_token";s:40:"djBQt3tcG6GcKmKxlOe0ZuhVG2vdslLVarPsoPZn";s:11:"viewed_urls";a:1:{i:0;s:62:"i-have-100-bgp-neighbors-and-one-of-them-is-down-how-to-fix-it";}s:9:"_previous";a:1:{s:3:"url";s:90:"http://www.networkbulls.com/i-have-100-bgp-neighbors-and-one-of-them-is-down-how-to-fix-it";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}', 'lock' => true))
  3. at file_put_contents('/var/www/html/storage/framework/sessions/Di2Bo9Jp4gUqdO50dXFI7i7rghw7ir3YqcQK8csm', 'a:4:{s:6:"_token";s:40:"djBQt3tcG6GcKmKxlOe0ZuhVG2vdslLVarPsoPZn";s:11:"viewed_urls";a:1:{i:0;s:62:"i-have-100-bgp-neighbors-and-one-of-them-is-down-how-to-fix-it";}s:9:"_previous";a:1:{s:3:"url";s:90:"http://www.networkbulls.com/i-have-100-bgp-neighbors-and-one-of-them-is-down-how-to-fix-it";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}', 2) in Filesystem.php line 111
  4. at Filesystem->put('/var/www/html/storage/framework/sessions/Di2Bo9Jp4gUqdO50dXFI7i7rghw7ir3YqcQK8csm', 'a:4:{s:6:"_token";s:40:"djBQt3tcG6GcKmKxlOe0ZuhVG2vdslLVarPsoPZn";s:11:"viewed_urls";a:1:{i:0;s:62:"i-have-100-bgp-neighbors-and-one-of-them-is-down-how-to-fix-it";}s:9:"_previous";a:1:{s:3:"url";s:90:"http://www.networkbulls.com/i-have-100-bgp-neighbors-and-one-of-them-is-down-how-to-fix-it";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}', true) in FileSessionHandler.php line 83
  5. at FileSessionHandler->write('Di2Bo9Jp4gUqdO50dXFI7i7rghw7ir3YqcQK8csm', 'a:4:{s:6:"_token";s:40:"djBQt3tcG6GcKmKxlOe0ZuhVG2vdslLVarPsoPZn";s:11:"viewed_urls";a:1:{i:0;s:62:"i-have-100-bgp-neighbors-and-one-of-them-is-down-how-to-fix-it";}s:9:"_previous";a:1:{s:3:"url";s:90:"http://www.networkbulls.com/i-have-100-bgp-neighbors-and-one-of-them-is-down-how-to-fix-it";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}') in Store.php line 128
  6. at Store->save() in StartSession.php line 88
  7. at StartSession->terminate(object(Request), object(Response)) in Kernel.php line 216
  8. at Kernel->terminateMiddleware(object(Request), object(Response)) in Kernel.php line 187
  9. at Kernel->terminate(object(Request), object(Response)) in index.php line 58
  10. at require_once('/var/www/html/public/index.php') in index.php line 20