I didn't real whole post but... I heard that setting
"no keepalive" on frame relay interfaces keeps them
from dropping.
--- Brian Lodwick <[EMAIL PROTECTED]> wrote:
> I'd try debug interface, or lmi if you are using
> frame and see what the
> sequence numbers look like. Also what does the show
> controllers look like
> for this interface?
>
> >>>Brian
>
>
> >From: "Perusek, Rick"
> <[EMAIL PROTECTED]>
> >Reply-To: "Perusek, Rick"
> <[EMAIL PROTECTED]>
> >To: "'Albert Lu'" <[EMAIL PROTECTED]>,
> GroupStudy
> ><[EMAIL PROTECTED]>
> >Subject: RE: Serial Line Protocol Problems
> >Date: Thu, 1 Feb 2001 10:47:26 -0500
> >
> >Hi Albert,
> >
> >Are you using the same encapsulation type on both
> interfaces? (Probably
> >HDLC
> >for a back to back hookup.) What about keepalives?
> Are they set to the same
> >value at both ends? It sounds like one router is
> sending keepalives and the
> >other one is not.
> >
> >Rick
> >
> >-----Original Message-----
> >From: Albert Lu [mailto:[EMAIL PROTECTED]]
> >Sent: Thursday, February 01, 2001 7:58 AM
> >To: GroupStudy
> >Subject: Serial Line Protocol Problems
> >
> >
> >Hi All,
> >
> >I've got a problem with the serial port of a 2500
> of mine.
> >
> >I used a serial back to back cable, in order to
> connect 2 2500s. I know
> >what
> >a normal response the 2500 should give, it should
> normally detect that the
> >interface is up (I've used no shutdown already),
> and then set the line
> >protocol to up.
> >
> >For one of the serial port, the interface and the
> line protocol changes to
> >up when I connect the two routers together. But
> after awhile, this is what
> >I
> >get:
> >
> >01:30:48: %LINEPROTO-5-UPDOWN: Line protocol on
> Interface Serial0, changed
> >state
> > to up
> >01:31:08: %LINEPROTO-5-UPDOWN: Line protocol on
> Interface Serial0, changed
> >state
> > to down
> >01:31:18: %LINEPROTO-5-UPDOWN: Line protocol on
> Interface Serial0, changed
> >state
> > to up
> >01:31:38: %LINEPROTO-5-UPDOWN: Line protocol on
> Interface Serial0, changed
> >state
> > to down
> >01:31:48: %LINEPROTO-5-UPDOWN: Line protocol on
> Interface Serial0, changed
> >state
> > to up
> >01:32:08: %LINEPROTO-5-UPDOWN: Line protocol on
> Interface Serial0, changed
> >state
> > to down
> >01:32:18: %LINEPROTO-5-UPDOWN: Line protocol on
> Interface Serial0, changed
> >state
> > to up
> >01:32:38: %LINEPROTO-5-UPDOWN: Line protocol on
> Interface Serial0, changed
> >state
> > to down
> >
> >It keeps continuing. From what I can see, the line
> protocol keeps going up
> >and down periodically, however the interface is
> still up.
> >
> >This is what I've tried:
> >- Different cables.
> >- Different serial ports
> >- Changing clock rate and bandwidth
> >- Rebooting the router
> >
> >Could someone give me some suggestions?
> >
> >
> >Thanks
> >
> >Albert
> >
> >_________________________________
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>
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=====
Don't forget to cross your digits...
Dan West -- CCNA, CCNP (in progress)
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