3550-EMI crashs with PIM on VLAN

Lutz Donnerhacke 20 years ago

I wonder if the 3550er is able to work as a multicast router on a vlan. The C3550-I5Q3L2-M (Version 12.1(13)EA1c) image crashs with "Unassigned Exception (0xAC1B1C48)!, PC 0x21EE74"

Relevant config: interface f0/X description Customer port switchport switchport mode access switchport access vlan Y ! interface f0/V description IPv6 router switchport switchport mode trunk switchport trunk allowed vlan Y,... ! interface vlan Y ip address 192.168.0.1/30 ip pim ip sap listen !

It worked fine with f0/X as a router port (without vlan), but the vlan was necessary to provide IPv6 to the customer. The IPv6 router is v6 only.

Any idea? Should I disable IGMP snooping on the vlan Y?

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Lutz Donnerhacke 20 years ago

Does not help. After six hours ... crashed again:

Cisco Internetwork Operating System Software IOS (tm) C3550 Software (C3550-I5Q3L2-M), Version 12.1(13)EA1c, RELEASE SOFTWARE (fc1) Copyright (c) 1986-2003 by cisco Systems, Inc. Compiled Tue 24-Jun-03 18:49 by yenanh

Unassigned Exception (0xA0000CB)! CPU Register Context: Vector = 0x0A0000CB PC = 0x0021EE74 MSR = 0x40089030 CR = 0x44000048 LR = 0x006B1A74 CTR = 0x001B7938 XER = 0x20000000 R0 = 0x08000048 R1 = 0x01000820 R2 = 0x00000000 R3 = 0x00001100 R4 = 0xFFFFFFFF R5 = 0xD911C50E R6 = 0x00000000 R7 = 0x00033450 R8 = 0x00EF1C68 R9 = 0x7C020378 R10 = 0x00F0081C R11 = 0x00020340 R12 = 0x22000048 R13 = 0xEC4496A0 R14 = 0x00000000 R15 = 0x00000000 R16 = 0x00000000 R17 = 0x00000000 R18 = 0x00000000 R19 = 0x00000000 R20 = 0x009C0000 R21 = 0x00B50000 R22 = 0x00000001 R23 = 0xD911C50E R24 = 0x00B50000 R25 = 0x00B50000 R26 = 0x00033450 R27 = 0xFFFFFFFF R28 = 0x010A6FCC R29 = 0x0A0000CB R30 = 0x00000001 R31 = 0x01000910

Stack trace: PC = 0x0021EE74, SP = 0x01000820 Frame 00: SP = 0x01000908 PC = 0x006B1A5C Frame 01: SP = 0x01000970 PC = 0x006CAF24 Frame 02: SP = 0x010009C0 PC = 0x006CC0E8 Frame 03: SP = 0x010009E0 PC = 0x006AA908 Frame 04: SP = 0x00000000 PC = 0x001C6440

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Nick Ersdown 20 years ago

Hi,

Cisco's output interpreter recognises it as a software problem and gives a probable bug ID with a 90% match - however the bug ID related to server load balancing so it may not be 100% right.

Are you able to upgrade the IOS to a newer version, say 12.3(9) or 12.3(10) as recommended by the Bug ID?

Regards,

Nick Ersdown

formatting link

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Lutz Donnerhacke 20 years ago

I'll try it. Thanx.

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