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Checking routing table memory availability : ASR1000

I'm trying to determine the amount of memory available and being used by the amount of routes in an ASR1002.

 

Using the below link:

 

http://www.cisco.com/c/en/us/support/docs/routers/asr-1000-series-aggregation-services-routers/116777-technote-product-00.html#anc9

 

It advises using:
 

"show platform hardware qfp active tcam resource-manager usage"
 

Which when used shows:

transit2#show platform hardware qfp active tcam resource-manager usage
QFP TCAM Usage Information

80 Bit Region Information
--------------------------
Name                                : Leaf Region #0
Number of cells per entry           : 1
Current 80 bit entries used         : 0
Current used cell entries           : 0
Current free cell entries           : 0

160 Bit Region Information
--------------------------
Name                                : Leaf Region #1
Number of cells per entry           : 2
Current 160 bits entries used       : 62
Current used cell entries           : 124
Current free cell entries           : 3972

320 Bit Region Information
--------------------------
Name                                : Leaf Region #2
Number of cells per entry           : 4
Current 320 bits entries used       : 12
Current used cell entries           : 48
Current free cell entries           : 4048


Total TCAM Cell Usage Information
----------------------------------
Name                                : TCAM #0 on CPP #0
Total number of regions             : 3
Total tcam used cell entries        : 172
Total tcam free cell entries        : 130900
Threshold status                    : below critical limit

 

I'm guessing it's the last part which is important. The Total tcam used/free cell entries?

The thing is it doesn't really give the amount of memory which is free. 


If instead I do:  show platform software status control-processor brief

 

transit2#show platform software status control-processor brief
Load Average
 Slot  Status  1-Min  5-Min 15-Min
  RP0 Healthy   0.53   0.31   0.29
 ESP0 Healthy   0.03   0.04   0.00
 SIP0 Healthy   0.07   0.03   0.01

Memory (kB)
 Slot  Status    Total     Used (Pct)     Free (Pct) Committed (Pct)
  RP0 Healthy  3874976  2589640 (67%)  1285336 (33%)   2835860 (73%)
 ESP0 Healthy  2009900   849780 (42%)  1160120 (58%)    687284 (34%)
 SIP0 Critical   449776   425224 (95%)    24552 ( 5%)    463184 (103%)

CPU Utilization
 Slot  CPU   User System   Nice   Idle    IRQ   SIRQ IOwait
  RP0    0   9.09   8.39   0.00  81.91   0.49   0.09   0.00
 ESP0    0   2.30   4.20   0.00  93.49   0.00   0.00   0.00
 SIP0    0   0.70   0.70   0.00  98.60   0.00   0.00   0.00

Again I'm not sure which part I should be reffering to for amount of memory free. SIP0 shows Critical but has this got anything to do with the amount stored in the routing table?

 

Thanks

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