Wired Intelligent Edge

Hi Folks!

We have a HP 8212zl switch at our high school, with a pair of J9538A modules each containing a few J9150A MMF SFP transcievers. Right now, all of these ports are set to auto-negotiate port speed and duplex, which is fine.

AT&T is installing a new Ciena router at this location, which will connect the rest of our schools to the high school. Each remote school will have a 1Gbps connection, while the high school will have a 10Gbps connection to this WAN. However, when we connect this new router to the switch via one of the J9150As, we're finding that the link will go down after a few seconds.

We called AT&T, and they're saying it's because our interface is set to auto speed/duplex, while their interface is hardcoded to 10g-full. However, when I go to this interface on our switch and type "speed-duplex ?", there is no option for 10g full. There is a "auto-10g", but when I attempt to set that, I get an error stating "error setting value speed for port b6".

AT&T is refusing to switch the interface on the Ciena to auto-negotiate, so we're stuck making this work. Is there a way we can force this port to run at a hardcoded 10g-full, despite it not being an option for this interface?

Cheers!

Joey

A116-8212zl-Core(eth-B6)# speed
 10-half               10 Mbps, half duplex.
 100-half              100 Mbps, half duplex.
 10-full               10 Mbps, full duplex.
 100-full              100 Mbps, full duplex.
 1000-full             1000 Mbps, full duplex.
 auto                  Use Auto Negotiation for speed and duplex mode.
 auto-10               10 Mbps, use Auto Negotiation for duplex mode.
 auto-100              100 Mbps, use Auto Negotiation for duplex mode.
 auto-1000             1000 Mbps, use Auto Negotiation for duplex mode.
 auto-10-100           10 or 100 Mbps, use Auto Negotiation for duplex mode.
 auto-10g              10 Gbps, use Auto Negotiation for duplex mode.

Can you show us your switchport config?

Also, increase your logging level to debug and show us what it logs.

Hello,

Here is the config of that port, we don't have anything fancy going on:

A116-8212zl-Core# show run int b6

Running configuration:

interface B6
   name "Link to Site-to-Site WAN"
   tagged vlan 225
   exit

In the config, I set "console events debug", but that does not seem to be producing any useful information:

A116-8212zl-Core(config)# int b6
A116-8212zl-Core(eth-B6)# speed-duplex auto-10g
Error setting value speed-duplex for port B6.
A116-8212zl-Core(eth-B6)# exit
A116-8212zl-Core(config)# exit
A116-8212zl-Core# log
 Keys:   W=Warning   I=Information
         M=Major     D=Debug E=Error
----  Event Log listing: Events Since Boot  ----
I 09/19/13 09:39:09 00184 mgr: AM1: Log cleared as a result of  'clear logging'
            command
----  Bottom of Log : Events Listed = 1  ----
A116-8212zl-Core#

1/ What I meant was, view the log events when you patch in the interface:

Unpatch b6

configure "logging severity debug" on the switch

patch b6

"show logg"

2/ You have a tagged VLAN on your link to your WAN provider. Are you sure this is correct? In my experience I have hardly ever seen a WAN provider that wanted tagged frames off a customer network.

I spent some time on the phone with both the vendor we got the switch from, and HP support. Long story short, it seems there is no way to hard-code an interface to 10Gbps Full duplex

I do appriciate your help though, so thank you :)

For your other question - that is the correct configuration for AT&T's OPT-E-MAN service, which is our old WAN/MAN solution. OPT-E-MAN is based on VLANs, so they just assigned us a specific VLAN that we had to tag our WAN-facing interfaces to use. Our new service doesn't have such a requirement, but it's not fully opperational/ready yet, so we're keeping the tagged VLAN until then.

It might be helpful to view the log events when you make the link live.

It would also be interesting for other users of this site to see what your switch is logging.