we are currently using gated to do BGP with some private peers.
the configs are based on a few factoids derived from the examples and alot
of trial and error.
i wonder if there is a site or some sample configs that i can use to learn
about using gated/BGP in the following contexts:
- filters (rejecting/dropping specific routes RFC1918, default, sub/24, etc)
- combining AS's (we have 3+ AS's behind our network)
- raising/lowering preferences on routes/AS's
also, if using an intel platform, with FreeBSD, what would your recommendations
be for processor/RAM with two full peers?
Any of the high speed Celeron processors (466 is <$100 now) work great, you
probably want to start at 64MB RAM
> also, if using an intel platform, with FreeBSD, what would your recommendations
> be for processor/RAM with two full peers?
>
Any of the high speed Celeron processors (466 is <$100 now) work great, you
probably want to start at 64MB RAM
Gated use more memory than CISCO IOS, because this case you have the GATED
tables and the kernel tables; menory is cheap today, don't experiment and
install 128 or 256 MB RAM if you want a few core images.
CPU power should not be so important, I guess. And use commercial gated if
you can.
---
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Aleksei Roudnev, Network Operations Center, Relcom, Moscow
(+7 095) 194-19-95 (Network Operations Center Hot Line),(+7 095) 230-41-41, N 13729 (pager)
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the configs are based on a few factoids derived from the examples and alot
of trial and error.
also, if using an intel platform, with FreeBSD, what would your recommendations
be for processor/RAM with two full peers?
This is *not* a recommendation to drop gated, but you may want to
start looking at zebra (http://www.zebra.org) which is becoming stable
enough to use in a "real" environment. Comparing to the public
versions of gated, it uses less memory and less CPU and supported lots
more "new" (read necessary) attributes.
Our external router (just onefor now - it is only a small network)
runs gated, but next time I am back in the office on a weekend it is
likely to get zebra installed. I have zebra operating (bgpd actually -
not kernel updates) on my test/desktop machine with 3 full-ish BGP peers
in 64M RAM:
show ip bgp sum
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/Pref
195.40.167.193 4 9179 435872 59921 0 0 0 01w2d16h 66646
XXXXXXXXXXXXXXX 4 AAAA 1856882 61712 0 0 0 3d08h37m 65153
YYYYYYYYYYYYY 4 BBBBB 106231 133262 0 0 0 5d21h22m 27668
from top:
PID USERNAME PRI NICE SIZE RES STATE WAIT TIME CPU COMMAND
...
16556 root 2 0 20M 21M sleep select 23:18 0.34% bgpd
(IP and ASes blurred to protect my testing partners). This is no
exports - import only, but export works OK in our smaller tests.
The only major area I think needs lots of work is logging - I can
say this because I volunteered to do it, but have not had any spare
time in the passed couple of months.
Regards,