Since my client is using some Cat3750 stack in their campus, and experienced loop several times . now we have 2 new core Cat6506E, we want to use VSS, if the VSS is stable enough ?
What is the cause for the Cat3750 stack loop ?
------------------ show version ------------------
Cisco IOS Software, C3750 Software (C3750-IPSERVICESK9-M), Version 12.2(55)SE4, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2011 by Cisco Systems, Inc. Compiled Tue 06-Sep-11 02:59 by prod_rel_team Image text-base: 0x01000000, data-base: 0x02F00000
ROM: Bootstrap program is C3750 boot loader BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(44)SE5, RELEASE SOFTWARE (fc1)
M01SW3750-01 uptime is 4 weeks, 6 days, 23 hours, 2 minutes System returned to ROM by power-on System image file is "flash:c3750-ipservicesk9-mz.122-55.SE4.bin"
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cisco WS-C3750-24P (PowerPC405) processor (revision J0) with 131072K bytes of memory. Processor board ID CAT1110NGVJ Last reset from power-on 9 Virtual Ethernet interfaces 48 FastEthernet interfaces 4 Gigabit Ethernet interfaces The password-recovery mechanism is enabled.
512K bytes of flash-simulated non-volatile configuration memory. Base ethernet MAC Address : 00:1B:2B:59:D0:80 Motherboard assembly number : 73-9672-09 Power supply part number : 341-0029-05 Motherboard serial number : CAT111051SG Power supply serial number : LIT11060B5D Model revision number : J0 Motherboard revision number : A0 Model number : WS-C3750-24PS-S System serial number : CAT1110NGVJ Top Assembly Part Number : 800-25860-04 Top Assembly Revision Number : B0 Version ID : V05 CLEI Code Number : CNMV1K0CRD Hardware Board Revision Number : 0x01
Switch Ports Model SW Version SW Image ------ ----- ----- ---------- ---------- * 1 26 WS-C3750-24P 12.2(55)SE4 C3750-IPSERVICESK9-M
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You have a "stack loop"? If so, sound like you should contact TAC although would recommend you upgrade your 55SE4 to 55SE8.
VSS is now relatively stable, at least on the VS-S720s.
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