ちなみにPort1.2はChromecast with GoogleTV。定期的に3秒ほどダウンしてまた100Mbpsでリンクするということを繰り返してる模様。逆なら省電力中の更新チェックみたいな動作かと思うんですが、切れて3秒で復帰するのはなんなんでしょう。ログとしてはかなりノイズなので、下位のスイッチにつなぎ替えようかな…
2023/06/18 16:52:10: [ SESSION]:inf: Login succeeded as admin for HTTP: 192.168.0.53 2023/06/18 16:51:52: [ IF]:inf: Interface port1.8 changed state to up (2500-full) 2023/06/18 16:51:49: [ IF]:inf: Interface port1.8 changed state to down 2023/06/18 16:35:18: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 16:35:15: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 16:18:50: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 16:18:47: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 15:30:14: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 15:30:11: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 14:57:55: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 14:57:51: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 14:23:49: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 14:23:47: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 13:54:34: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 13:54:31: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 13:53:31: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 13:53:29: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 13:17:25: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 13:17:21: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 12:12:20: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 12:12:17: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 11:05:56: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 11:05:53: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 10:18:26: [ NTPC]:inf: Get the SNTP time 06/18/2023 10:18:26 2023/06/18 09:59:31: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 09:59:29: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 08:54:27: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 08:54:24: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 08:10:36: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 08:10:32: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 07:27:26: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 07:27:23: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 07:14:54: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 07:14:52: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 06:45:17: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 06:45:15: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 06:09:06: [ SESSION]:inf: Logout timer expired as (admin) for HTTP:192.168.0.7 2023/06/18 06:01:39: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 06:01:36: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 05:52:55: [ SESSION]:inf: Login succeeded as admin for HTTP: 192.168.0.7 2023/06/18 05:40:13: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 05:40:09: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 05:10:36: [ IF]:inf: Interface port1.7 changed state to up (2500-full) 2023/06/18 05:10:29: [ IF]:inf: Interface port1.7 changed state to down 2023/06/18 05:04:07: [ IF]:inf: Interface port1.8 changed state to up (100-full) 2023/06/18 05:04:05: [ IF]:inf: Interface port1.8 changed state to down 2023/06/18 04:59:50: [ IF]:inf: Interface port1.8 changed state to up (2500-full) 2023/06/18 04:59:46: [ IF]:inf: Interface port1.8 changed state to down 2023/06/18 04:47:35: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 04:47:31: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 04:35:09: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 04:35:05: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 04:21:27: [ IF]:inf: Interface port1.8 changed state to up (100-full) 2023/06/18 04:21:25: [ IF]:inf: Interface port1.8 changed state to down 2023/06/18 03:43:16: [ IF]:inf: Interface port1.8 changed state to up (2500-full) 2023/06/18 03:43:13: [ IF]:inf: Interface port1.8 changed state to down 2023/06/18 03:30:04: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 03:30:01: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 03:19:40: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 03:19:38: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 03:19:36: [ IF]:inf: Interface port1.7 changed state to up (2500-full) 2023/06/18 03:19:28: [ IF]:inf: Interface port1.7 changed state to down 2023/06/18 03:19:24: [ IF]:inf: Interface port1.7 changed state to up (1000-full) 2023/06/18 03:19:18: [ IF]:inf: Interface port1.7 changed state to down 2023/06/18 03:19:16: [ IF]:inf: Interface port1.7 changed state to up (2500-full) 2023/06/18 03:19:12: [ IF]:inf: Interface port1.7 changed state to down 2023/06/18 03:08:23: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 03:08:18: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 02:49:27: [ SESSION]:inf: Logout timer expired as (admin) for HTTP:192.168.0.53 2023/06/18 02:49:23: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 02:49:20: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 02:48:46: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 02:48:42: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 02:47:46: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 02:47:44: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 02:47:19: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 02:47:16: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 02:40:21: [ IF]:inf: Interface port1.8 changed state to up (100-full) 2023/06/18 02:40:19: [ IF]:inf: Interface port1.8 changed state to down 2023/06/18 02:39:24: [ IF]:inf: Interface port1.3 changed state to up (100-full) 2023/06/18 02:39:24: [ CONFIG]:inf: Configuration changed 2023/06/18 02:39:21: [ IF]:inf: Interface port1.3 changed state to down 2023/06/18 02:39:07: [ IF]:inf: Interface port1.4 changed state to up (1000-full) 2023/06/18 02:39:07: [ CONFIG]:inf: Configuration changed 2023/06/18 02:39:05: [ IF]:inf: Interface port1.4 changed state to down 2023/06/18 02:37:24: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 02:37:24: [ CONFIG]:inf: Configuration changed 2023/06/18 02:37:22: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 02:35:42: [ IF]:inf: Interface port1.5 changed state to up (1000-full) 2023/06/18 02:35:41: [ CONFIG]:inf: Configuration changed 2023/06/18 02:35:40: [ IF]:inf: Interface port1.5 changed state to down 2023/06/18 02:35:00: [ IF]:inf: Interface port1.7 changed state to up (2500-full) 2023/06/18 02:34:54: [ IF]:inf: Interface port1.6 changed state to down 2023/06/18 02:34:06: [ IF]:inf: Interface port1.2 changed state to up (100-full) 2023/06/18 02:34:04: [ IF]:inf: Interface port1.2 changed state to down 2023/06/18 02:33:55: [ CONFIG]:inf: Configuration changed 2023/06/18 02:33:48: [ IF]:inf: Interface port1.1 changed state to up (2500-full) 2023/06/18 02:33:47: [ CONFIG]:inf: Configuration changed 2023/06/18 02:33:45: [ IF]:inf: Interface port1.1 changed state to down 2023/06/18 02:33:33: [ IF]:inf: Interface port1.9 changed state to up (10000-full)
RTX1300配下におけばそちらの管理画面からもGUI設定可能ですが、telnetやsshでログインすることもできます。telnetは最近のWindows/macOSには入ってないし、より安全なsshを使おうと思ったわけですが、標準のsshクライアントでは「Unable to negotiate with 192.168.0.251 port 22: no matching key exchange method found. Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1」だの「no matching host key type found. Their offer: ssh-rsa,ssh-dss」だの言われてアクセスできません。暗号鍵交換のアルゴリズム周りで古めのものを使ってるせいか、最近のWindows/macOSのOpenSSHクライアントが無効化していてマッチしないようでした。 そこで、このスイッチに対してのみ、要求するアルゴリズムも追加で使用許可してやる必要がありました。~/.ssh/configファイルに以下のような設定を追加します。