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

[Dimitris Befas]

You cannot get an PFC3CXL mode when combining CFC and PFC sub-modules. The
PFC capability is per module, but the PFC mode is a chassis function.

For your specific hardware config, you will accomplish a PFC3CXL mode only
if you remove slots 3 and 5 or if you replace their sub-modules with
DFC3CXL.

Dimitris
On Jul 30, 2014 12:39 PM, "Jiri Prochazka" <jiri.prochazka at superhosting.cz>
wrote:

> 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
>
>
>
>
>
>
>
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