Linux/ Unix: IMMs ACCESS Failed

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PROD IMMs ACCESS Failed: I can not access IMM.   Here’s what we’ve tried so far: 1.            Normally can access the IMMs from browser (once connected to network – but the GUI does not always come up for either IMM1 nor IMM2. 2.            The IMMs on PROD2 are fine. 3.            Cannot telnet nor SSH to the IMMs either. 4.            I can ping the IMM IP addresses from the switches, so I think the mgmt network to them is okay…and can get to the AMMs on the same frame. 5.            I rebooted one of the M4s and that did not change the issue.  The access came back on its own.   I saw the following message in the IMM web interface when he navigated to IMM Management > Network:   The IMM2 is assigned a static IP address. When using a hostname or FQDN (Fully Qualified Domain Name) , at least one DNS (Domain Name System) server must be specified in DNS tab and make sure the DNS server can resolve the hostname or FQDN to the IP address. Otherwise, communication errors will occur.   I don’t want to assume this is the issue, but perhaps some investigation could be done.

newguyintown · Sep 4, 2013 3:50 PM · 16,358 views

6 Replies

newguyintown · Sep 4, 2013 3:56 PM

Any ideas/ comments/ feedback to troubleshoot this issue would be highly appreciated.

newguyintown · Sep 4, 2013 3:58 PM

sambx13#ping 10.214.15.17 [host 10.214.15.17, max tries 5, delay 1000 msec , length 0] 10.214.15.17: #1 ok, RTT 0 msec. 10.214.15.17: #2 ok, RTT 1 msec. 10.214.15.17: #3 ok, RTT 1 msec. 10.214.15.17: #4 ok, RTT 1 msec. 10.214.15.17: #5 ok, RTT 1 msec. Ping finished. sambx13#ping 10.214.15.17 [host 10.214.15.17, max tries 5, delay 1000 msec , length 0] 10.214.15.17: #1 timed out. 10.214.15.17: #2 timed out. 10.214.15.17: #3 timed out. 10.214.15.17: #4 timed out. 10.214.15.17: #5 timed out. sambx13#ping 10.214.15.17 [host 10.214.15.17, max tries 5, delay 1000 msec , length 0] 10.214.15.17: #1 ok, RTT 797 msec. 10.214.15.17: #2 ok, RTT 1 msec. 10.214.15.17: #3 ok, RTT 1 msec. 10.214.15.17: #4 ok, RTT 1 msec. 10.214.15.17: #5 ok, RTT 1 msec.

newguyintown · Sep 4, 2013 4:09 PM

There is definitely something going on with the networking to the IMMs.  From a BNT switch I issued constant ping commands to of the IMM IP addresses in Prod 2:   sambx13#ping 10.214.15.17 [host 10.214.15.17, max tries 5, delay 1000 msec , length 0] 10.214.15.17: #1 timed out. 10.214.15.17: #2 timed out. 10.214.15.17: #3 timed out. 10.214.15.17: #4 timed out. 10.214.15.17: #5 timed out. Ping finished.   sambx13#ping 10.214.15.17 [host 10.214.15.17, max tries 5, delay 1000 msec , length 0] 10.214.15.17: #1 timed out. 10.214.15.17: #2 timed out. 10.214.15.17: #3 timed out. 10.214.15.17: #4 timed out. 10.214.15.17: #5 timed out. Ping finished.   sambx13#ping 10.214.15.17 [host 10.214.15.17, max tries 5, delay 1000 msec , length 0] 10.214.15.17: #1 ok, RTT 0 msec. 10.214.15.17: #2 ok, RTT 1 msec. 10.214.15.17: #3 ok, RTT 1 msec. 10.214.15.17: #4 ok, RTT 1 msec. 10.214.15.17: #5 ok, RTT 1 msec. Ping finished.   sambx13#ping 10.214.15.17 [host 10.214.15.17, max tries 5, delay 1000 msec , length 0] 10.214.15.17: #1 timed out. 10.214.15.17: #2 timed out. 10.214.15.17: #3 timed out. 10.214.15.17: #4 timed out. 10.214.15.17: #5 timed out.   sambx13#ping 10.214.15.17 [host 10.214.15.17, max tries 5, delay 1000 msec , length 0] 10.214.15.17: #1 ok, RTT 797 msec. 10.214.15.17: #2 ok, RTT 1 msec. 10.214.15.17: #3 ok, RTT 1 msec. 10.214.15.17: #4 ok, RTT 1 msec. 10.214.15.17: #5 ok, RTT 1 msec.

newguyintown · Sep 4, 2013 4:13 PM

newguyintown · Sep 4, 2013 4:44 PM

Is it a layer 3 switch? Post the routing table and the arp table.  "route -n" or "show route" or "show arp" or "show ethernet switching-table" whichever is close to your switch CLI.

Sleepless · Sep 4, 2013 7:28 PM

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Linux/ Unix: IMMs ACCESS Failed

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