[c-nsp] 720-3BXL IOS 15

[Peter Rathlev]

On Tue, 2016-11-15 at 15:35 -0500, Curtis Piehler wrote:
> Does anyone have any suggested 15.x Versions for the 720-3BXL Cards?
> I have a couple of 7606 routers that have a need to run BFD + BGP
> within a VRF Instance. The current 12.2(33)SRB3 does not allow this.

For what it's worth we are happy with 15.1(2)SY4a on both Sup720-3B and
Sup720-3C. They're not XL though and we don't have full tables on them,
just 7.5k internal VPNv4 routes.

Comparing two otherwise similar supervisors, one running 15.1(2)SY4a
and the other running 12.2(33)SXJ3, I see a slightly higher memory
usage on 15.1(2)SY4a:

12233SXJ3#show memory summary
               Head  Total(b)   Used(b)   
Free(b) Lowest(b) Largest(b)
Processor  469CB0F0 895667984 139094100
756573884 754832860  756383500
      I/O   8000000  67108864  22785252  
44323612  42188384   44323420
1233SXH3#show ip bgp vpnv4 all summary |
incl network entr
7505 network entries using 1028185 bytes of memory
1233
SXH3#show version | incl uptime
 1233SXH3 uptime is 2 years, 48 weeks,
... 

1512SY4a#show memory summary
               Head  Total(b)   Used(b)   Free(b) Lowest(b) Largest(b)
Processor  4732AF60 885837984 165501444 720336540 719032572  720246520
      I/O   8000000  67108864  22129892  44978972  44642024   44978780
1512SY4a#show ip bgp vpnv4 all summary | incl network entr
7505 network entries using 1170780 bytes of memory
1512SY4a#show version | incl uptime
 1512SY4a uptime is 1 year, 3 weeks, ...

-- 
Peter