[c-nsp] 6509 / 3750 link problem

[Nick Griffin]

In the past I've had to do "speed nonegotiate" give that a shot.

On 4/9/07, Brad Henshaw <brad.henshaw at qcn.com.au> wrote:
>
> Glenn,
>
> In addition to the other suggestions, I noticed the following in your
> output:
>
> Your side:
> Full-duplex, 1000Mb/s, media type is LH
>
> Their side:
> Full-duplex, 1000Mb/s, link type is force-up, media type is 1000BaseLX
> SFP
>
> It's possible they've set 'speed nonegotiate' on their gig port. If so,
> get them to remove this config on their end to allow autonegotiation
> (which I always prefer for fibre links) or disable autonegotiation on
> your end to match. Some Cisco gear won't bring a fibre link up by
> default if autonegotiation isn't playing.
>
> Regards,
> Brad
>
>
>
> > -----Original Message-----
> > From: cisco-nsp-bounces at puck.nether.net
> > [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Glenn Tan
> > Sent: Monday, 9 April 2007 8:56 PM
> > To: cisco-nsp at puck.nether.net
> > Subject: [c-nsp] 6509 / 3750 link problem
> >
> > Hi
> >
> > I am having a strange problem here...
> > We're trying to connect to an uplink's Catalyst 3750 from one of our
> > 6509 SUP720s via 1000base-LX over single-mode fiber and we
> > are having this weird problem where our router shows the
> > interface as down/down, whereas their router shows the
> > interface as up/up.
> >
> > We have tested every portion of the fiber pair linking both
> > switches and have found nothing wrong. The wavelengths are
> > both the same, signal strengths are well within normal
> > ranges, and all cable loopback tests are successful and
> > indicate no problems.
> >
> > GBIC on our side is:
> >  Vendor Name       : CISCO-JDSU
> >  Vendor OUI        : 0x0 0x1 0x9C
> >  Vendor PN         : JGBR12LY02332
> >
> > GigabitEthernet3/9 is down, line protocol is down (notconnect)
> >   Hardware is C6k 1000Mb 802.3, address is 0007.ec6d.4400
> > (bia 0007.ec6d.4400)
> >   MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
> >      reliability 255/255, txload 1/255, rxload 1/255
> >   Encapsulation ARPA, loopback not set
> >   Keepalive set (10 sec)
> >   Full-duplex, 1000Mb/s, media type is LH
> >   input flow-control is off, output flow-control is desired
> >   Clock mode is auto
> >
> >
> > SFP on their side is:
> > Vendor Name           :   CISCO-AVAGO
> > Vendor Part Number    :   QFCT-5798LP
> >
> > GigabitEthernet1/0/2 is up, line protocol is up (connected)
> >   Hardware is Gigabit Ethernet, address is 0019.3014.a282 (bia
> > 0019.3014.a282)
> >   MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
> >      reliability 255/255, txload 1/255, rxload 1/255
> >   Encapsulation ARPA, loopback not set
> >   Keepalive set (10 sec)
> >   Full-duplex, 1000Mb/s, link type is force-up, media type is
> > 1000BaseLX
> > SFP
> >   input flow-control is off, output flow-control is unsupported
> >
> > Has anyone experienced this before?
> > Any help from anyone is appreciated.
> >
> > Thanks and cheers.
> >
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>
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