Catalyst6509 GE interface hang without any indication


We are using a Catalyst6509 as distribution layer switch which is connected to M160 by
GE interface( OSPF run on both side)..

Yesterday we noticed that no traffic occur on that GE link at some special time.
When trying to "ping" the other side on either platform, no responds got.
But, on either M160 or Catalyst6509 "sh interface"
showed no errors information. When checking syslog, there is no error record

We also checked the configuration record for both system, and found there is no
modification in configuration at the time when link load becomes zero.

As last resort, we solved this problem by "shutdown" GE VLAN interface on
Catalyst6509, and "no shut" consequently, then everything
come up.

But, today another Catalyst6509 of our system hanged on its uplink GE. We have to
restarted the box to solve. Different from the catalyst6509 hanged yesterday, this
catalyst6509 have netflow-export enabled for month. ( I included the detailed info at
the end )

I tried hard to find out the reason but can't find any information related on Cisco's

Is there anybody could do me a favor to do some help?

Each word will be highly appreciated.


Joe Shen

///////////////////////////////////////////////// info for the first
Catalyst ////////////////////////////////////

6509C-SUP-hz> sh ver

WARNING: This product contains cryptographic features and is subject to United States
and local country laws governing import, export, transfer and use. Delivery of Cisco
cryptographic products does not imply third-party authority to import, export,
distribute or use encryption. Importers, exporters, distributors and users are
responsible for compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable to comply with
U.S. and local laws, return this product immediately.

WS-C6509-NEB Software, Version NmpSW: 7.6(1)
Copyright (c) 1995-2003 by Cisco Systems
NMP S/W compiled on Apr 16 2003, 18:33:31

System Bootstrap Version: 7.1(1)
System Boot Image File is 'bootflash:cat6000-sup2k9.7-6-1.bin'
System Configuration register is 0x102

Hardware Version: 3.0 Model: WS-C6509-NEB Serial #: TBM07201366

PS1 Module: WS-CDC-1300W Serial #: SON07221E2W
PS2 Module: WS-CDC-1300W Serial #: SON07221E25

Mod Port Model Serial # Versions
--- ---- ------------------- ----------- --------------------------------------
1 2 WS-X6K-SUP2-2GE SAL0725F92G Hw : 4.2
                                         Fw : 7.1(1)
                                         Fw1: 6.1(3)
                                         Sw : 7.6(1)
                                         Sw1: 7.6(1)
         WS-X6K-SUP2-2GE SAL0725F92G Hw : 4.2
                                         Sw :
2 2 WS-X6K-SUP2-2GE SAL0725F90A Hw : 4.2
                                         Fw : 7.1(1)
                                         Fw1: 6.1(3)
                                         Sw : 7.6(1)
                                         Sw1: 7.6(1)
         WS-X6K-SUP2-2GE SAL0725F90A Hw : 4.2
                                         Sw :
4 48 WS-X6148-RJ-45 SAL0723ELCS Hw : 1.3
                                         Fw : 5.4(2)
                                         Sw : 7.6(1)
5 48 WS-X6148-RJ-45 SAL0723ELEG Hw : 1.3
                                         Fw : 5.4(2)
                                         Sw : 7.6(1)
15 1 WS-F6K-MSFC2 SAL0723ENQ9 Hw : 2.5
                                         Fw : 12.1(13)E7
                                         Sw : 12.1(13)E7
16 1 WS-F6K-MSFC2 SAL0723ENPQ Hw : 2.5
                                         Fw : 12.1(13)E7
                                         Sw : 12.1(13)E7

Module Total Used Free Total Used Free Total Used Free
------ ------- ------- ------- ------- ------- ------- ----- ----- -----
2 131072K 67144K 63928K 32768K 9043K 23725K 512K 296K 216K

Uptime is 260 days, 0 hour, 23 minutes

6509C-msfc-hz>sh hard
Cisco Internetwork Operating System Software
IOS (tm) MSFC2 Software (C6MSFC2-PO3SV-M), Version 12.1(13)E7, EARLY DEPLOYMENT RELEASE
SOFTWARE (fc2) TAC Support: Copyright (c) 1986-2003 by cisco
Systems, Inc. Compiled Fri 20-Jun-03 09:24 by hqluong Image text-base: 0x40008C00, data-
base: 0x419D8000

ROM: System Bootstrap, Version 12.1(11r)E1, RELEASE SOFTWARE (fc1)

idc6509C-msfc-hz uptime is 37 weeks, 1 day, 31 minutes
System returned to ROM by power-on
System restarted at 15:26:41 RPC Mon Sep 8 2003
Running default software

cisco Cat6k-MSFC2 (R7000) processor with 114688K/16384K bytes of memory. Processor
board ID SAL0723ENPQ R7000 CPU at 300Mhz, Implementation 39, Rev 3.3, 256KB L2, 1024KB
L3 Cache Last reset from power-on X.25 software, Version 3.0.0. Bridging software. 16
Virtual Ethernet/IEEE 802.3 interface(s) 509K bytes of non-volatile configuration

32768K bytes of Flash internal SIMM (Sector size 512K). Configuration register is 0x2102



---- Msg sent via Spymac Mail -