[cisco-voip] Checking hardware -- PRI

[Scott Voll]

mgcp packets are following back and forth.

isdn: Feb 15 16:31:19.360: %ISDN-6-LAYER2DOWN: Layer 2 for Interface
Se0/3/0:23, TEI 0 changed to down
Feb 15 16:31:48.852: %ISDN-6-LAYER2UP: Layer 2 for Interface Se0/3/0:23, TEI
0 changed to up

not seeing any ccm manager events.  should I?

Scott






On Mon, Feb 15, 2010 at 8:25 AM, Peter Slow <peter.slow at gmail.com> wrote:

> Errrr.... Also I sort of jumped the gun....
>
> > I have shut not shut the interface but I continue to get RTMT reports
> that the D channel is down(every 1 - 3 minutes).  Router has been up for
> > multiple days.(had a power outage last week). but d channel went down
> yesterday afternoon.
>
> ...This can mean a TON of things... You're goign to see this alert if
> your GW ungesisters from your CCM. That could easily be due to a
> network issue. Its entirely possible that your interface is bouncing
> at one layer or another when it unregisters or re-registers with your
> CCM, that could explain your controller errors. We need to see what's
> happening first. Is the GW losing registration with the CCM for a
> network or software-related reason, or is the actual T1 interface
> bouncing, or is there a different issues thats just causing a problem
> with the q.931 signaling.
>
> we need:
> debug mgcp packet
> debug isdn q931
> debug ccm-manager backhaul events
> debug ccm-manager config-download all
>
> ...and anythign that appears in syslog, such as interface protocol
> state changes (int x is up down etc)
>
> ...begging before and ending after the occurrence of one of the
> D-Channel OOS events.
>
> -Peter
>
> On Mon, Feb 15, 2010 at 11:17 AM, Peter Slow <peter.slow at gmail.com> wrote:
> > I recommend doing one of two things:
> >
> > if you have hardware to accommodate a second PRI, wire it up to this
> > one and set them up back to back, and we'll see if the issue
> > continues, and if you keep getting errors or not.
> >
> > If you can't go with option 1, you need to slap a loopback into that
> > bad boy and set it up as an HDLC encapsulated data T1 and we can send
> > packets of various sizes over it to see if you get any errors that
> > way.
> >
> > Pick one, and we'll go through the specifics =)
> >
> > -Peter
> >
> >
> >
> > On Mon, Feb 15, 2010 at 11:10 AM, Scott Voll <svoll.voip at gmail.com>
> wrote:
> >> show isdn stat shows multiple frames established which makes me still
> think
> >> it's a Telco issue.  any other ideas?
> >> Scott
> >> ps. I have no mgcp -- mgcp.
> >>
> >> On Mon, Feb 15, 2010 at 7:53 AM, Scott Voll <svoll.voip at gmail.com>
> wrote:
> >>>
> >>> I have a ticket in with the local telco, but I have a D channel on my
> PRI
> >>> that is bouncing about every 1-3 minutes.
> >>> How do I check to make sure it's not a hardware issue on my side?
> >>> it's a 2851 with vwic-2mft-t1=
> >>> I see on the controller in the last 24 hours it has 1610 path code
> >>> violations, 9 line code violoations, 2 serverly err secs, and 6 unavail
> >>> secs. but nothing in the current interval.
> >>> I have shut not shut the interface but I continue to get RTMT reports
> that
> >>> the D channel is down(every 1 - 3 minutes).  Router has been up for
> multiple
> >>> days.(had a power outage last week). but d channel went down yesterday
> >>> afternoon.
> >>> What else should I be looking at.
> >>> Thanks
> >>> Scott
> >>> ps. CM 6.1.3 and MGCP.
> >>
> >> _______________________________________________
> >> cisco-voip mailing list
> >> cisco-voip at puck.nether.net
> >> https://puck.nether.net/mailman/listinfo/cisco-voip
> >>
> >>
> >
>
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