[c-nsp] 6509 / 3750 link problem

[Raman Sud]

Try replacing the GBICs.. 

-----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, April 09, 2007 3:56 AM
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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