topic RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1 in ExtremeSwitching (EXOS/Switch Engine)

switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Akin — Fri, 16 Sep 2016 19:19:00 GMT

switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1. I had to do a hard reset to bring it back online. Does anyone know what could have happened?

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Patrick_Voss — Fri, 16 Sep 2016 19:25:00 GMT

Hello Akin,

Were you connected via console or telnet? Is there anything in the logs around the time you lost connectivity?

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Akin — Fri, 16 Sep 2016 19:29:00 GMT

Hi Patrick. Thank you for your time. I was connected via ssh.

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Akin — Fri, 16 Sep 2016 19:32:00 GMT

I found many of this error in the log: Port=2: No associated STP port for STP Domain tag 0 (Rate-limited)

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Patrick_Voss — Fri, 16 Sep 2016 19:36:00 GMT

When you lost connectivity, did you try to console into it before rebooting? Our switches don't shut down unless the power is pulled. Were there indicator lights on the switch when you went to reset it?

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Ronald_Dvorak — Fri, 16 Sep 2016 19:40:00 GMT

Could you go into a little bit more detail about the "shutdown" state....
could it be that the ssh connection was running via that port and you only lost the mgmt link ?

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Patrick_Voss — Fri, 16 Sep 2016 19:41:00 GMT

This is a good theory. Rebooting the switch would of reverted it back to the state where the ports were still added into the default VLAN, therefore restoring connectivity.

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Akin — Fri, 16 Sep 2016 20:07:00 GMT

the ports i removed from the Default vlan, say 1,2,3 are masters in different lacp sharing group. I did not just lose connection via ssh... all servers connected to the switch, including the distribution switch it is uplinked to also did because those ports are tagged in different vlan. What I mean by "shutdown" is that connections were lost to the entire switch as soon as i effected this change << "configure vlan "Default" delete ports 1,2,3 >>

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Akin — Fri, 16 Sep 2016 20:13:00 GMT

And yes, I did reboot with the last saved config and everything is back to normal. However, these ports are also back in the "Default" vlan. I was going to console in first but realized the servers connected to it have to be up 24/7. Rebooting was the fastest approach at the time.

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Patrick_Voss — Fri, 16 Sep 2016 20:17:00 GMT

Is this a full extreme network? if so can you provide us with the following:

"show edp ports all"
"show sharing"

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Akin — Fri, 16 Sep 2016 20:39:00 GMT

No, the network is not a full extreme network. But the switch is uplinked to an extreme switch, which is the distribution switch. I see no output with the "show edp ports all" command". Here is the out put from "show sharing". So in this case, for example, i removed port 1 from the "Default" vlan.

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Patrick_Voss — Fri, 16 Sep 2016 20:40:00 GMT

Is port 1 the path traffic would take to get to this switch?

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Akin — Fri, 16 Sep 2016 21:01:00 GMT

No. traffic would take port 3 to get to the switch. ports 3 (master) and 4 are in one lacp group as well. So i did move port 3 from the "Default" vlan as I did port 1. Thank you for your time.

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Patrick_Voss — Fri, 16 Sep 2016 21:04:00 GMT

Can you provide us with a "show vlan"? and a "show port 3 info detail"?

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Akin — Fri, 16 Sep 2016 21:08:00 GMT

Unfortunately I cannot post those information for security reasons. What would you like to know about port 3?

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Nick_Yakimenko — Fri, 16 Sep 2016 21:08:00 GMT

You could probably fade or cut private information, because you want us to help you find bugs in your config. Or ele you should reach the guy who wrote the original config

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Henrique — Fri, 16 Sep 2016 21:36:00 GMT

Hi Akin,

Not sure if I understood correctly, but let's say you have the following:

LACP 1 - Ports 1, 5
LACP 2 - Ports 2, 6
LACP 3 - Ports 3, 4

And you have ports 1, 2 and 3 added to vlan "default".

If you do "configure vlan default delete ports 1,2,3", then all 6 ports will be removed from vlan "default". Also if those ports are used as uplinks to reach this switch, you will "isolate" the switch.

When you add/remove a LAG master port to/from a vlan, that action will happen to all ports in the LAG.

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Akin — Fri, 16 Sep 2016 21:36:00 GMT

Hi Henrique, you are right with the scenario and I agree all six ports would be removed from the Default vlan. However, I do not understand why this change would affect traffic from other vlans on those links. I was connected to, say vlan 599 via ssh before I was shut out. Also, different servers in various vlans were disconnected as well. What is weird to me is that I have had to remove ports from Default vlan before with no issues, even LAG ports.

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Akin — Fri, 16 Sep 2016 21:36:00 GMT

The Default vlan (tag 1) only has ports 1,2,3 added untagged.

RE: switch summit-x670 shutdown when I removed 3 ports from the default vlan tag 1

Patrick_Voss — Fri, 16 Sep 2016 21:39:00 GMT

The IP address you are using to gain access through SSH. What VLAN is that on?