Product |
Comments |
---|---|
4OC12E/POS-IR-SC(=) |
4 port OC-12/STM4 SONET/SDH Single-Mode IR with SC |
4OC12E/POS-MM-SC(=) |
4 port OC-12/STM4 SONET/SDH Multi-Mode with SC |
The 4302 Revision 3 framer Application-Specific Integrated Circuit (ASIC) has a bug that can cause the other ports on a line card (LC) to fail. Revision 4 fixes the problem.
There is a bug in the data-squelch function of framer ASIC revision 3 (08-0200-03) that may cause a single packet to be improperly terminated when the specific SONET alarms loss of frame (LOF) and loss of pointer (LOP) become active. The bug causes traffic to stop on all four ports for about one second and an error message to print to the console. No other SONET alarms sensitize the bug, including loss of signal (LOS), which means that pulling the fiber connection cannot sensitize the bug.
Cisco Gigabit Switch Router (GSR) with Quad OC12 packet over SONET (POS) LCs is reporting the following error message.
SLOT 6:000031: 00:30:52: %LCPOS-3-SOP: RX:UnexpectedSop. Source=0x4 (Framer), halt_minor0=0x8000 SLOT 6:000032: 00:30:52: %GSR-3-INTPROC: Process Traceback= 400C31F8 400BDFDC 40010A0C -Traceback= 4017AE9C 404CDD9C 400BD47C 000085: 00:33:36: %GRP-3-FABRIC_UNI: Unicast send timed out.
Customers who wish to proactively replace one or more of their affected products with units not exhibiting this problem should request a Return Materials Authorization (RMA) from the Cisco TAC. RMA orders will be shipped next business day and standard delivery only.
To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.
DDTS |
Description |
---|---|
perf-QOC12: %LCPOS-3-SOP: Rx SOP. (source=0x2, halt_minor0=0x8000) |
The only reliable way to identify the framer ASIC revision is to query the framer ASIC directly. Cisco recommends customers contact the TAC for assistance using this method. Cisco also recommends customers schedule this activity during a maintenance window because querying the framer ASIC revision using the procedure below will momentarily flap the packet over SONET (POS) interface(s).
Attach to the LC and execute the command sequence below to collect JTAG values. There are four values per framer. Concatenating the JTAG values will give you a code that can translate to the ASIC framer revision.
?LC-Slot2#test fab ?BFLC (? for help) [rd]:rd ?From address [0x12000804]: 0x12000808 ?To address [0x12000804]: 0x12000808 ?Access type [0x1]:0x1 ?0x12000808: 0x40? <----------------- JTAG3 ? ?BFLC (? for help) [rd]:rd ?From address [0x12000808]: 0x1200080A ?To address [0x12000808]: 0x1200080A ?Access type [0x1]:0x1 ?0x1200080A: 0x0C? <----------------- JTAG2 ? ?BFLC (? for help) [rd]:rd ?From address [0x1200080A]: 0x1200080C ?To address [0x1200080A]: 0x1200080C ?Access type [0x1]:0x1 ?0x1200080C: 0x80 <------------------ JTAG1 ? ?BFLC (? for help) [rd]:rd ?From address [0x1200080C]: 0x1200080E ?To address [0x1200080C]: 0x1200080E ?Access type [0x1]:0x1 ?0x1200080E: 0x2F <------------------ JTAG0
The Revision 4 framer should have JTAG values of 400C802F. Anything else is a lower revision.
Caution: Using a value of 0x8 for the Access type, which may be the default in some Cisco IOS® Software releases, can cause the LC to crash.
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:
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