[cisco-voip] How do I diag bad ports on a VG224?

[Tim Reimers]

Got output from the debug vpm signal, but still no dialtone.

It's a working config that has had dialtone up until now.

MGCP btw, so no real dialpeer matching to be done.

I'm not sure how to determine anything about the port getting stuck.
It just shows on-hook just like always, and no particular state.

Does go off-hook when called, but you don't hear anything on a lineset clipped onto the block

I'm annoyed by the fact that these are the flavor of VG with an RJ-21X on the back and not individual ports.
Neater wiring, but I can't exactly unplug the thing and reseat it without causing outage for everyone.


Tim Reimers
Systems Analyst II
Information Technology Services
City of Asheville
70 Court Plaza
Asheville, NC 28801
phone - 828-259-5512
treimers at ashevillenc.gov

-----Original Message-----
From: matthn at gmail.com [mailto:matthn at gmail.com] On Behalf Of Nick Matthews
Sent: Tuesday, May 19, 2009 10:10 AM
To: Lelio Fulgenzi
Cc: Tim Reimers; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] How do I diag bad ports on a VG224?

Generally, if you don't get any output from 'debug vpm signal' it's a bad port.  You can have the no dial tone problem from incorrect dial peer matching and registration problems, as well as software problems with the port getting stuck in a bad state.

I would make sure you have term mon and logging monitor on, do a 'conf t' and 'exit' to make sure you see the 'Configured by vty 0 ...etc'
message, and then test the ports with 'debug vpm signal' on.


-nick

On Tue, May 19, 2009 at 9:52 AM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:
> I've had this happen on a few occasions. Even after resetting the box 
> and unplugging the cables, still no go. I had to replace the box.
>
> Be forewarned though, replacing the box may not be as simple as 
> changing the MAC address depending on what version you are running. I 
> had to recreate all the ports.
>
>
> ---
> Lelio Fulgenzi, B.A.
> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> "Bad grammar makes me [sic]" - Tshirt
>
>
> ----- Original Message -----
> From: "Tim Reimers" <treimers at ashevillenc.gov>
> To: cisco-voip at puck.nether.net
> Sent: Tuesday, May 19, 2009 9:43:33 AM GMT -05:00 US/Canada Eastern
> Subject: [cisco-voip] How do I diag bad ports on a VG224?
>
> I have a VG224 with four ports that have no dialtone on them.
>
> they all used to work, and now have either silence or a loud hum on them.
>
> I've detached the station side wiring from the 66-block, and the hum 
> persists.
>
> Ports 2/8 through 2/11 are dead, and I'm suspicious of lightning or 
> something like that, since we've had some other events in the last few 
> weeks.
>
> But I don't see anything in post like the errors you'd  you'd normally 
> see in a Catalyst switch with a blown ASIC (the sort of thing that 
> takes down four ports all at one time)
>
> Externally, this VG is acting like four ports are blown, but not 
> showing any errors?
>
> Anyone? Got some hardware troubleshooting methods and processes for 
> the VG
> 224 series of gateways?
>
> I'd like to have some sort of cut-&-paste info to put into a TAC case 
> beyond the serial number of the unit.
>
>
>
>
> Tim Reimers
> Systems Analyst II
> Information Technology Services
> City of Asheville
> 70 Court Plaza
> Asheville, NC 28801
> phone - 828-259-5512
> treimers at ashevillenc.gov
>
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