[c-nsp] sup2T software & release notes have hit

[Phil Mayers]

On 05/09/11 16:35, Phil Mayers wrote:
> On 05/09/11 16:29, Jon Lewis wrote:
>> On Mon, 5 Sep 2011, Alan Buxey wrote:
>>
>>> VS-S2T-10G-XL
>>> 1024K (IPv4) 512K (IPv6)
>>
>> Right...but my point was, that's the same specs claim they make for the
>> Sup720-3BXL, and it's misleading because at least with the 3BXL, it's 1M
>> IPv4 routes [and 0 IPv6] OR 512K IPv6 routes [and 0 IPv4], or some
>> compromise of smaller numbers of each, such as the 622592 IPv4 and
>> 212992 IPv6 I posted.
>>
>> If they haven't increased the max routes capability of the next
>> generation Sup vs the 3BXL, then that's very disappointing.
>
> This is all quite well documented here:
>
> http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SY/release/notes/ol_20679.html#wp2561330
>
>

Actually let me rephrase that - "well" documented seems a bit of 
misnomer ;o)

With regards the simultaneous maxima, I think it's the same situation as 
with the sup720 i.e. the maximums are mutually exclusive.

However, it seems the FIB carving is a bit more dynamic by default, for 
example:

#sh platform hardware cef maximum-routes  usage

  Fib-size: 256k (262144),     shared-size: 248k (253952), shared-usage: 
1k(1238)

  Protocol         Max-routes     Usage              Usage-from-shared
  -------         ----------     -----              -----------------
  IPV4             249 k          2262   (2   k)       1238   (1   k)
  IPV4-MCAST       249 k          90     (0   k)       0      (0   k)
  IPV6             249 k          566    (0   k)       0      (0   k)
  IPV6-MCAST       249 k          8      (0   k)       0      (0   k)
  MPLS             249 k          99     (0   k)       0      (0   k)
  EoMPLS           249 k          1      (0   k)       0      (0   k)
  VPLS-IPV4-MCAST  249 k          0      (0   k)       0      (0   k)
  VPLS-IPV6-MCAST  249 k          0      (0   k)       0      (0   k)


...the "566" is about twice the number of IPv6 routes we have, so 
clearly an IPv6 route uses two "units" of FIB.

What's not clear to me is how the above corresponds to the "sh plat hard 
cap" results shown earlier, which seems to indicate different 
carving/numbers.