Writer terminal hanged

alcomint
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Posts: 17
Joined: 19 Apr 2016, 10:10

Writer terminal hanged

Postby alcomint » 05 Aug 2016, 09:35

Hello
I have OS6860e-U28, when I used

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write terminal
command at console I could get result but when I tried to use same command switch over network, it just hanged.
Cheers

silvio
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Re: Writer terminal hanged

Postby silvio » 05 Aug 2016, 14:23

did you see this issue only at this command?
instead write terminal you can use "show configuration snapshot"
There you can filter like for only seeing parts of the config:
> show configuration snapshot ip vlan ?
regards
Silvio

alcomint
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Posts: 17
Joined: 19 Apr 2016, 10:10

Re: Writer terminal hanged

Postby alcomint » 08 Aug 2016, 07:34

Thanks a lot!
The terminal hanged and kept hanged even after 10 minutes. However I was able to get configurations by using

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"show configuration snapshot"
but why it doesn't show configuration at terminal ?

When I used following both command at terminal returned nothing, I was also looking if I can use this command at console and it work but not on terminal, then is there any security scenario or something which causes hang in terminal?

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OS6860e-U28 -> write terminal
and

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"show configuration snapshot"


Both commands return nothing at terminal but work fine at Console port.

Kindly help me to find reason!

Regards,

silvio
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Re: Writer terminal hanged

Postby silvio » 10 Aug 2016, 02:39

Did you use SSH or Telnet? Do other show command work, or only this both?
regards
Silvio

alcomint
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Posts: 17
Joined: 19 Apr 2016, 10:10

Re: Writer terminal hanged

Postby alcomint » 12 Aug 2016, 04:23

I used telnet and ssh both, both ways terminal hanged but when I use these two commands "write terminal" and "show configuration snapshot" and the control never comeback until around 10 minutes even the session might have already ended.
I assumed if there is some security behind that we can use these commands at console but not on terminal and to make work these commands at terminal we might have to enable something, perhaps.
Regards

silvio
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Re: Writer terminal hanged

Postby silvio » 12 Aug 2016, 12:46

no, there is no security with this command if you use the same user (f.e. admin).
Have you created other user with read-write all and tried with this one?
which release?
regards
Silvio

alcomint
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Posts: 17
Joined: 19 Apr 2016, 10:10

Re: Writer terminal hanged

Postby alcomint » 15 Aug 2016, 08:02

Its MTU setting's problem, seems like MTU setting is not properly configured at both end. But being newbee I have no idea about to change settings etc.
Can anyone help?

I tried

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ping 17x.xxx.xx.xxx -f -s 1480


I received dots, such as

................................................................................................................................................................................................................................................................................................................................................................

What else I should check ?

Best Regards,

silvio
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Re: Writer terminal hanged

Postby silvio » 15 Aug 2016, 13:05

So you haven't tested SSH/Telnet via local network direct at the switch? There MTU can't be a reason.
At the switch site you can change the mtu from default 1500 with the following two commands:

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vlan 10 mtu-ip 1400
icmp type 3 code 4 enable


You can check it with the following command (if10 is name of your used ip interface)

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> show ip interface if10


But if there is an other connection (f.e. VPN) than you have to change it at the source (router/firewall).
regards
Silvio

alcomint
Member
Posts: 17
Joined: 19 Apr 2016, 10:10

Re: Writer terminal hanged

Postby alcomint » 19 Aug 2016, 08:07

Well I was telnet and ssh to switch but seem like even after changing MTU size it is not responding, I check ping with different packet sizes but

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[root@alu ~]# ping 173.241.19.126 -f -s -d 100
PING 100 (0.0.0.100) 0(68) bytes of data.
..........................................................



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[root@alu ~]# ping 173.241.19.126 -f -s 1500
PING 173.241.19.126 (173.241.19.126) 1500(1528) bytes of data.
......................................................................................................................................................................................................................................


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