[c-nsp] DFC3C-XL refuses to operate in XL mode

[Jiri Prochazka]

Hi,

I am building a new 7606S chassis, with RSP720-3CXL (12.2(33)SRE10) and 
a few X6704-10GE linecards.

Most of 6704-10GE cards are equipped with DFC3C-XL modules.

The problem is that two DFC3C-XL modules are unwilling to operate in 
3C-XL mode. Both DFC's are from different sources, so I highly doubt 
both are faulty the same way.

But both show the same symptoms. Although they are 3C-XL versions, they 
work as 3C only..which degrades PFC operating mode of the whole chassis 
to PFC3C. As soon as I swap DFC on respective 6704 card to some other 
piece, it works OK.

What confuses me the most is this log record ->

*Feb 25 02:15:11.324: %OIR-SP-6-DOWNGRADE_EARL: Module 6 PFC installed 
is not identical to system PFC and will perform at current system 
operating mode.


WS-X6704-10GE with WS-F6700-DFC3CXL is in the SLOT 4. RSP720-3CXL-GE 
with 7600-PFC3CXL is in the SLOT 6.

Why is the switch complaining that PFC in slot6 (Supervisor) is not 
identical to system PFC (Supervisor?)?


7606S-lab#show module
Mod Ports Card Type                              Model 
Serial No.
--- ----- -------------------------------------- ------------------ 
-----------
   1    4  CEF720 4 port 10-Gigabit Ethernet      WS-X6704-10GE 
SAL1552ZWUQ
   2    4  CEF720 4 port 10-Gigabit Ethernet      WS-X6704-10GE 
SAL1545UJY7
   3    4  CEF720 4 port 10-Gigabit Ethernet      WS-X6704-10GE 
SAL1234173T
   4    4  CEF720 4 port 10-Gigabit Ethernet      WS-X6704-10GE 
SAL16020J6H
   5   48  CEF720 48 port 10/100/1000mb Ethernet  WS-X6748-GE-TX 
SAL10019Q21
   6    2  Route Switch Processor 720 (Active)    RSP720-3CXL-GE 
SAL1538QMQX

Mod MAC addresses                       Hw    Fw           Sw 
Status
--- ---------------------------------- ------ ------------ ------------ 
-------
   1  0011.934a.001c to 0011.934a.001f   1.5   Unknown      Unknown 
  PwrDown
   2  0011.9370.270c to 0011.9370.270f   1.5   Unknown      Unknown 
  PwrDown
   3  0022.902b.fc44 to 0022.902b.fc47   2.7   Unknown      Unknown 
  PwrDown
   4  0011.204f.ff68 to 0011.204f.ff6b   1.5   12.2(18r)S1  12.2(33)SRE1 Ok
   5  0016.9dcb.6434 to 0016.9dcb.6463   2.9   Unknown      Unknown 
  PwrDown
   6  001c.584c.ab98 to 001c.584c.ab9b   5.9   12.2(33r)SRE 12.2(33)SRE1 Ok

Mod  Sub-Module                  Model              Serial       Hw 
Status
---- --------------------------- ------------------ ----------- ------- 
-------
   1  Distributed Forwarding Card WS-F6700-DFC3CXL   SAL1423K3UR  1.6 
  PwrDown
   2  Distributed Forwarding Card WS-F6700-DFC3CXL   SAL160101ZB  1.7 
  PwrDown
   3  Centralized Forwarding Card WS-F6700-CFC       SAL12330HQ6  4.1 
  PwrDown
   4  Distributed Forwarding Card WS-F6700-DFC3CXL   SAL1406AMHG  1.4    Ok
   5  Centralized Forwarding Card WS-F6700-CFC       SAL1336XWTP  4.1 
  PwrDown
   6  Policy Feature Card 3       7600-PFC3CXL       SAL153813DT  1.0    Ok
   6  C7600 MSFC4 Daughterboard   7600-MSFC4         SAL1538AW19  1.5    Ok


After a reload with card inserted and powered, the chassis loads to PFC3 
mode.

7606S-lab#show platform hardware pfc mode
PFC operating mode : PFC3C

As soon as I remove the card, reload, the chassis loads to PFC3C-XL 
mode. When the card is inserted, it's powered down, to prevent DFC 
mismatch. Even when the DFC and PFC version is the same..both XL.


Any thoughts what can be wrong? Other than 'two faulty DFC modules'. As 
I said, both are from different sources and we have used both previously 
so it's really unlikely.


Thanks!


Jiri