[c-nsp] SUP2T.. TCAM related errors..

[Peter Kranz]

I cannot for the life of me figure out why this box seems to think it has
TCAM issues..  It's a SUP-2T XL platform.. Usage levels look well under TCAM
limits.

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May 23 12:06:22: %CFIB-7-CFIB_EXCEPTION: FIB TCAM exception, Some entries
will be software switched
May 31 08:58:51: %CV6_LC-5-FIB_EXCEP_ON: Failed to insert IPv6 prefix in FIB
TCAM because it is full

rtr #show platform hardware capacity forwarding
L2 Forwarding Resources
           MAC Table usage:   Module  Collisions  Total       Used
%Used
                              1                0 131072       1525
1%
                              2                0 131072       1526
1%
                              6                0 131072       1522
1%

L3 Forwarding Resources
             FIB TCAM usage:                     Total        Used
%Used
                  72 bits (IPv4, MPLS, EoM)     1048576      555182
53%
                 144 bits (IP mcast, IPv6)      524288       25930
5%
                 288 bits (IPv6 mcast)          262144           1
1%

                     detail:      Protocol                    Used
%Used
                                  IPv4                      555180
53%
                                  MPLS                           1
1%
                                  EoM                            1
1%

                                  IPv6                       25924
5%
                                  IPv4 mcast                     6
1%
                                  IPv6 mcast                     1
1%

            Adjacency usage:                     Total        Used
%Used
                                               1048576       33569
3%

rtr #sh mls cef exception status               
Current IPv4 FIB exception state = TRUE
Current IPv6 FIB exception state = TRUE
Current MPLS FIB exception state = FALSE
Current EoM/VPLS FIB TCAM exception state = FALSE