[Xorp-users] Peer error

[Nathan K]

It seems as though I want to make my own bgp daemon that uses the BGPPeer 
class without a peer handler as I'm not interested in the plumbing. I have 
two goals, send customized Update packets to routers where different routers 
get different update packets targeted to them. The second goal is to parse 
incoming update packets from routers to determine AS to Subnet mappings.

Is there any reason why I couldn't design a daemon that creates a list of 
BGPPeer objects and sends out specific updates to each BGPPeer object? And 
as well has these BGPPeer objects receiving updates from other routers and 
storing information about those routes?

Thanks.

-Nathan.


>From: Atanu Ghosh <atanu@ICSI.Berkeley.EDU>
>Reply-To: atanu@ICSI.Berkeley.EDU
>To: "Nathan K" <doesnotcount@hotmail.com>
>CC: xorp-users@xorp.org
>Subject: Re: [Xorp-users] Peer error Date: Fri, 20 Aug 2004 13:33:49 -0700
>
>The BGP protocol is totally stateful. It does not use periodic refreshes
>of state to synchronise BGP processes. A BGP speaker is therefore
>required to send all its winning routes when a new session is
>established.
>
>The XORP BGP will send all the winning routes when a new session is
>established.
>
>Take a look in bgp/harness/test_peering2.sh, it contains tests to verify
>that we handle sessions being brought up and taken down, it
>also demonstrates how to add peerings using XRLs.
>
>	Atanu.
>
> >>>>> "Nathan" == Nathan K <doesnotcount@hotmail.com> writes:
>
>     Nathan> I'm attempting to use the BGPD to take requests (most likely
>     Nathan> in the form of xrls) to take a router-ip, a host-ip and a
>     Nathan> nextHop-ip and send BGP Updates setting the nextHop of
>     Nathan> host-ip to nextHop-ip only on the bgp peer with the given
>     Nathan> router-ip. My question is this: if one of those bgp peer
>     Nathan> routers goes down and then comes back up, will the BGPD
>     Nathan> automatically resend those updates? If not, I may have to
>     Nathan> have the BGPD notify my process (most likely in the form of
>     Nathan> an xrl call) that the router has gone down and when the
>     Nathan> router comes back up, I'll have to reissue all those
>     Nathan> updates, but I'd rather not have to do this.
>
>     Nathan> -Nathan.
>
>     Nathan> 
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