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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Talked about this before
On Mon, 9 Sep 2002, Pawlukiewicz Jane wrote:
> Quick Question, how much memory does the bgp tables actually take. I'm
> estimating 32 mb in my plan, but I'm worried that's not enough.
Two views:
hln-cs1#sh ip bgp summ
BGP router identifier 206.127.65.1, local AS number 4043
BGP table version is 132881, main routing table version 132881
112575 network entries and 336143 paths using 24365495 bytes of memory
60397 BGP path attribute entries using 3624720 bytes of memory
53004 BGP AS-PATH entries using 1426946 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
20536 BGP filter-list cache entries using 246432 bytes of memory
Dampening enabled. 96 history paths, 45 dampened paths
111752 received paths for inbound soft reconfiguration
BGP activity 112575/456 prefixes, 336319/176 paths, scan interval 15 secs
That said:
hln-cs1#sh mem
Head Total(b) Used(b) Free(b) Lowest(b)
Largest(b)
Processor 623C83E0 219380768 117525008 101855760 100536360
100521172
I/O F500000 11534336 8157292 3377044 3365952
3352444
By the time you populate the routing table and/or cef, and do a few other
things, you probably want at least 256MB.
If you are using something else, YMMV - it all depends on how efficient
the software is at storing it in memory.
- Forrest W. Christian ([email protected]) AC7DE
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