[c-nsp] Public table on 7206 VXR with NPE-G1 - 512MB or 1GB?

[Elmar K. Bins]

Re Mick,

mickster4470 at gmail.com (The Mickster) wrote:

> Currently they have 512MB of RAM, and the NPE-G1 appears to top-out at 1GigB
> of RAM.  Can anyone tell me if I can do the full table on 512 MB, or if I
> need upgrade to !Gig, or is running the full table on a 7206-VXR a lost
> cause anyway?

If your memory doesn't get eaten by features - the BGP table will
not be a problem there (currently).

Here's some output from a 7301 (NPE-G1 in 1RU) with:

Cisco 7301 (NPE) processor (revision F) with 491520K/32768K bytes of memory.


BGP summary heads:

BGP table version is 25371047, main routing table version 25371047
272588 network entries using 31892796 bytes of memory
596159 path entries using 31000268 bytes of memory
63023/49155 BGP path/bestpath attribute entries using 7814852 bytes of memory
56717 BGP AS-PATH entries using 1722370 bytes of memory
752 BGP community entries using 21148 bytes of memory
5 BGP extended community entries using 588 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 72452022 total bytes of memory
92 received paths for inbound soft reconfiguration
BGP activity 1942930/1668793 prefixes, 7982145/7383724 paths, scan interval 60 secs


(This box takes 2 full tables à 272k Paths and 150 peerings)

Memory reads like:

                Head    Total(b)     Used(b)     Free(b)   Lowest(b)  Largest(b)
Processor   640131A0   419350612   254954908   164395704   164299504   150915156
      I/O    E000000    33554432     4801752    28752680    28437440    28297436
Transient   7D000000    16777216       23560    16753656    16454612    16744716


Mileage may vary depending on IOS version (this is 12.4(21) ik9s) and features.

If you don't need the throughput of the bigger boxes, I see no reason why you
couldn't use a nice 7206-VXR with a G1 in it.

Oh, btw - if you need to upgrade: it doesn't have to be gold-plated latinum^W^W^W
Cisco RAM...standard DIMMs do fine.

Elmar.