problem with shifting client side ethernets on a Nortel Passport 8600

problem with shifting client side ethernets on a Nortel Passport 8600
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problem with shifting client side ethernets on a Nortel Passport 8600 animesh 08-12-2006
Posted by on August 12, 2006, 2:35 pm
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Hi All,

Apologies if I am being a bit vague in the following description of my
problem. I tried google and google groups but was unable to find
anything remotely relevant. I am a UNIX guy and don't have much idea
about managed switching and netowrking internals except the basics.

I am a UNIX guy and I needed to deploy a server at a clients place. The
server to be deployed was earlier running on a Linux Server connected
to a VLAN port configured on a Nortel Passport 8600 Switch over
ethernet. The entire networking was done a couple of years ago and the
internal network guys don't have any idea.

The system is supposed to be shifted to a brand new hardware. I just
needed to remove the ethernet cable from the existing server and
plugged in to the new server running Linux again.

The "link LED" failed to come up and the interface was shown as "down".
What I had anticipated was that the switch would update its ARP cache
after a few minutes, but nothing of that sort happenned. I tried
rebooting the switch but even it failed to work. I tried configuring
other machines running Windows XP and FreeBSD 6.0, but the end result
was the same.

So, I think these might be the reasons:
1. Either, the port at the Nortel switch has been configured with the
ARP of the Linux Server as the destination, or
2. The Nortel Switch is unable to reload its ARP cache.

I am in a fix, and I am trying to find a solution to make the above
work without having to modify any configurations on the Nortel Switch.

Looking forward to all possible help,

Thanks and Regards,
Animesh
NeoLinux Solutions


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Posted by gopher on August 13, 2006, 11:03 am
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Sounds to me you have a speed and duplex problem.

What speed and duplex is your Linux Server running at and what speed and
duplex is your port configured at.

ie.

Linux Server speed 1000 and duplex full, Switch port speed 100 duplex full,
link stays down. Maybe you need to set both ends to auto neg.

There is a free utility called Device Manager, a Java GUI to manage the
Passport 8600. Its about 130MB to download at Nortel.com, dead easy to use.



Hi All,

Apologies if I am being a bit vague in the following description of my
problem. I tried google and google groups but was unable to find
anything remotely relevant. I am a UNIX guy and don't have much idea
about managed switching and netowrking internals except the basics.

I am a UNIX guy and I needed to deploy a server at a clients place. The
server to be deployed was earlier running on a Linux Server connected
to a VLAN port configured on a Nortel Passport 8600 Switch over
ethernet. The entire networking was done a couple of years ago and the
internal network guys don't have any idea.

The system is supposed to be shifted to a brand new hardware. I just
needed to remove the ethernet cable from the existing server and
plugged in to the new server running Linux again.

The "link LED" failed to come up and the interface was shown as "down".
What I had anticipated was that the switch would update its ARP cache
after a few minutes, but nothing of that sort happenned. I tried
rebooting the switch but even it failed to work. I tried configuring
other machines running Windows XP and FreeBSD 6.0, but the end result
was the same.

So, I think these might be the reasons:
1. Either, the port at the Nortel switch has been configured with the
ARP of the Linux Server as the destination, or
2. The Nortel Switch is unable to reload its ARP cache.

I am in a fix, and I am trying to find a solution to make the above
work without having to modify any configurations on the Nortel Switch.

Looking forward to all possible help,

Thanks and Regards,
Animesh
NeoLinux Solutions



Posted by Dophi on August 13, 2006, 11:10 pm
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It's a link problem not ARP. How can Passport 8600 get ARP record if a
link never goes up? Check both speed and duplex mode of Passport 8600
and the NIC of your server. If you don;t want to change any setting of
Passport 8600, just change the speed and duplex mode of the NIC to
match Passport 8600.

Good Luck


animesh@neolinuxsolutions.com wrote:
> Hi All,
>
> Apologies if I am being a bit vague in the following description of my
> problem. I tried google and google groups but was unable to find
> anything remotely relevant. I am a UNIX guy and don't have much idea
> about managed switching and netowrking internals except the basics.
>
> I am a UNIX guy and I needed to deploy a server at a clients place. The
> server to be deployed was earlier running on a Linux Server connected
> to a VLAN port configured on a Nortel Passport 8600 Switch over
> ethernet. The entire networking was done a couple of years ago and the
> internal network guys don't have any idea.
>
> The system is supposed to be shifted to a brand new hardware. I just
> needed to remove the ethernet cable from the existing server and
> plugged in to the new server running Linux again.
>
> The "link LED" failed to come up and the interface was shown as "down".
> What I had anticipated was that the switch would update its ARP cache
> after a few minutes, but nothing of that sort happenned. I tried
> rebooting the switch but even it failed to work. I tried configuring
> other machines running Windows XP and FreeBSD 6.0, but the end result
> was the same.
>
> So, I think these might be the reasons:
> 1. Either, the port at the Nortel switch has been configured with the
> ARP of the Linux Server as the destination, or
> 2. The Nortel Switch is unable to reload its ARP cache.
>
> I am in a fix, and I am trying to find a solution to make the above
> work without having to modify any configurations on the Nortel Switch.
>
> Looking forward to all possible help,
>
> Thanks and Regards,
> Animesh
> NeoLinux Solutions


Posted by paulg81@gmail.com on August 15, 2006, 3:38 am
If you were  Registered and logged in, you could reply and use other advanced thread options
Try checking the properties of the port, it could be disabled or
configured to be a on a different VLAN. Use a Device Manager program to
do this.


Dophi wrote:
> It's a link problem not ARP. How can Passport 8600 get ARP record if a
> link never goes up? Check both speed and duplex mode of Passport 8600
> and the NIC of your server. If you don;t want to change any setting of
> Passport 8600, just change the speed and duplex mode of the NIC to
> match Passport 8600.
>
> Good Luck
>
>
> animesh@neolinuxsolutions.com wrote:
> > Hi All,
> >
> > Apologies if I am being a bit vague in the following description of my
> > problem. I tried google and google groups but was unable to find
> > anything remotely relevant. I am a UNIX guy and don't have much idea
> > about managed switching and netowrking internals except the basics.
> >
> > I am a UNIX guy and I needed to deploy a server at a clients place. The
> > server to be deployed was earlier running on a Linux Server connected
> > to a VLAN port configured on a Nortel Passport 8600 Switch over
> > ethernet. The entire networking was done a couple of years ago and the
> > internal network guys don't have any idea.
> >
> > The system is supposed to be shifted to a brand new hardware. I just
> > needed to remove the ethernet cable from the existing server and
> > plugged in to the new server running Linux again.
> >
> > The "link LED" failed to come up and the interface was shown as "down".
> > What I had anticipated was that the switch would update its ARP cache
> > after a few minutes, but nothing of that sort happenned. I tried
> > rebooting the switch but even it failed to work. I tried configuring
> > other machines running Windows XP and FreeBSD 6.0, but the end result
> > was the same.
> >
> > So, I think these might be the reasons:
> > 1. Either, the port at the Nortel switch has been configured with the
> > ARP of the Linux Server as the destination, or
> > 2. The Nortel Switch is unable to reload its ARP cache.
> >
> > I am in a fix, and I am trying to find a solution to make the above
> > work without having to modify any configurations on the Nortel Switch.
> >
> > Looking forward to all possible help,
> >
> > Thanks and Regards,
> > Animesh
> > NeoLinux Solutions


Posted by mlsnospam on August 17, 2006, 2:30 am
If you were  Registered and logged in, you could reply and use other advanced thread options
Check the log file on the 8600 "show log file tail".
Page to the date/time of when you attempted to connect the cable.
See if the port indicated "excessive link oscillations".
Disable/enable the port to activate the port again.


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