From: Duy Nguyen (net_port@xxxxxxxxxxx)
Date: Thu Nov 29 2001 - 10:39:02 GMT-3
The fsip-8 is a fast serial interface processor. IT's a sync int, so the
speed issue is not the factor here. IOS could be buggy. I have 11.2 and it
works fine at any rate.
Absolutely Positively Continuously Sincerely,
Duy Nguyen CCNP
net_port@hotmail.com
Cell (817) 707-7451
>From: Nick Driver <routernut@yahoo.com>
>Reply-To: Nick Driver <routernut@yahoo.com>
>To: Scott Decker <sdecker@bellsouth.net>, ccielab@groupstudy.com
>Subject: Re: Serial encap and clock rate failed HDLC
>Date: Thu, 29 Nov 2001 05:19:00 -0800 (PST)
>
>You probably are working on an async interface not a
>sync interface. The speed is limited on the async.
>
>-Scott
>
>--- Scott Decker <sdecker@bellsouth.net> wrote:
> > Hi gang:
> >
> > I've solved this issue in my lab already, but I'm
> > wondering if any of
> > you can comment on WHY it happened?
> >
> > Two routers, standard V.35 DCE to DTE on standard
> > serial ports (FSIP-8
> > to WIC-1T). If I leave the encap to HDLC and set
> > DCE end to clock rate
> > 56000, I get the following messages from debug
> > serial events:
> >
> > Router-C#debug serial int
> > Serial network interface debugging is on
> > Router-C#debug serial
> > 4d02h: Illegal HDLC serial type code 776,
> > PC=0x600D56A4
> > packet
> > 4d02h: Serial1/5: HDLC myseq 7, mineseen 0, yourseen
> > 0, line down
> > Serial network packets debugging is on
> > Router-C#
> > 4d02h: Illegal HDLC serial type code 776,
> > PC=0x600D56A4
> >
> > 4d02h: Serial1/5: HDLC myseq 8, mineseen 0, yourseen
> > 0, line down
> > 4d02h: Serial1/5: attempting to restart
> > 4d02h: Serial1/5: Reset from PC 0x600D7FB4
> > 4d02h: Illegal HDLC serial type code 776,
> > PC=0x600D56A4
> >
> > 4d02h: Serial1/5: HDLC myseq 9, mineseen 0, yourseen
> > 0, line down
> > 4d02h: Illegal HDLC serial type code 776,
> > PC=0x600D56A4
> >
> > 4d02h: Serial1/5: HDLC myseq 10, mineseen 0,
> > yourseen 0, line down
> > 4d02h: Illegal HDLC serial type code 776,
> > PC=0x600D56A4
> >
> > 4d02h: Serial1/5: HDLC myseq 11, mineseen 0,
> > yourseen 0, line down
> > 4d02h: Illegal HDLC serial type code 776,
> > PC=0x600D56A4
> >
> > 4d02h: Serial1/5: HDLC myseq 12, mineseen 0,
> > yourseen 0, line down
> > 4d02h: Illegal HDLC serial type code 776,
> > PC=0x600D56A4
> >
> > 4d02h: Serial1/5: HDLC myseq 13, mineseen 0,
> > yourseen 0, line down
> > 4d02h: Illegal HDLC serial type code 776,
> > PC=0x600D56A4
> >
> > Changing encap to PPP makes it work fine. And
> > here's the fun part: I
> > changed the clock rate to 64000 and it came right
> > up! What gives? It
> > doesn't matter really, it only took about 1 minute
> > to t-shoot and fix,
> > but it's bugging me.
> >
> > Sorry to be AR! It's the geek in me, I guess. :-)
> >
> > Scott
> >
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