From: Packet Man (ccie2b@hotmail.com)
Date: Thu Mar 04 2004 - 11:00:59 GMT-3
OK, that's what I wanted to confirm. Having taken the lab before, I know
it's critical to not lose any time doing things the slow way when a faster
alternative is available. In some of the pratice labs I've done, I've done
hard resets and it's agonizingly slow.
Thanks for your help. PM
>From: "Marko Berend" <marko.berend@storm.hr>
>Reply-To: "Marko Berend" <marko.berend@storm.hr>
>To: "Packet Man" <ccie2b@hotmail.com>, <ccielab@groupstudy.com>
>Subject: RE: BGP session resets: Hard versus Soft
>Date: Thu, 4 Mar 2004 14:34:52 +0100
>
>Exactly, because if everything works after soft reset, you're ok.
>Hard reset does this by tearing down and reestablishing the TCP
>connection and this takes time (like the first time you config it).
>
>So if you're doing inbound manipulation, do a soft outbound on the other
>router.
>If you're doing outbound manipulation do a soft outbound on this router.
>
>Route refresh capability is required on a router that does soft inbound.
>My understanding is that you're ok just using soft outbound on both
>ends.
>Also be careful to state peer IP when you do hard resets if you don't
>want to reset all peer connections.
>
>M
>
>-----Original Message-----
>From: Packet Man [mailto:ccie2b@hotmail.com]
>Sent: Thursday, March 04, 2004 2:27 PM
>To: Marko Berend; ccielab@groupstudy.com
>Subject: RE: BGP session resets: Hard versus Soft
>
>
>Thanks Marko, for clarifying that. So, back to the original question:
>
>In the lab, are you recommending using that it's better to first do soft
>
>resets (b/c it's very fast and reliable enough) but then, if things
>aren't
>as expected do a hard reset?
>
>Thanks again. pm
>
>
> >From: "Marko Berend" <marko.berend@storm.hr>
> >Reply-To: "Marko Berend" <marko.berend@storm.hr>
> >To: <ccielab@groupstudy.com>
> >Subject: RE: BGP session resets: Hard versus Soft
> >Date: Thu, 4 Mar 2004 14:14:13 +0100
> >
> >PM,
> >
> >You missunderstood me. Hard reset takes the same amount of time in the
> >lab routers, as it is reseting TCP connections between peers. Soft
> >takes virtualy no time at all. You don't have to worry about "neighbor
> >xxxx soft inbound" as long as you can soft reset outbound on the
> >opposing peer.
> >
> >Most policy related things work after soft reset. You should use it
> >first. If you are sure about your config and it still won't work, then
> >hard reset it. After you're done with BGP hard reset it to see if
> >everything holds... Can't be too careful.
> >
> >M
> >
> >
> >-----Original Message-----
> >From: Packet Man [mailto:ccie2b@hotmail.com]
> >Sent: Thursday, March 04, 2004 1:03 PM
> >To: Marko Berend; ccielab@groupstudy.com
> >Subject: RE: BGP session resets: Hard versus Soft
> >
> >
> >Thanks for getting back to me.
> >
> >I'm surprised with your response, though, because I know that with my
> >2500 series routers, there's a big difference in how long a soft and
> >hard reset
> >take. So, I figured, in the lab, there would also be a difference in
> >time,
> >but maybe it's not that great.
> >
> >As far as when a reset is needed, it's my undersatnding that whenever
> >any change in BGP policy takes place that affects what routes are
> >allowed in or
> >out, a reset (either hard or soft) is needed. Don't you agree?
> >
> >PM
> >
> >
> >
> >
> > >From: "Marko Berend" <marko.berend@storm.hr>
> > >Reply-To: "Marko Berend" <marko.berend@storm.hr>
> > >To: <ccielab@groupstudy.com>
> > >Subject: RE: BGP session resets: Hard versus Soft
> > >Date: Thu, 4 Mar 2004 11:34:35 +0100
> > >
> > >It is the same amount of time, it has little to do with processing
> > >power I think.
> > >
> > >Soft reset is IMHO reliable enough for the feats that it's available
> > >for.
> > >
> > >I always try a soft reset first (on both sides to be sure), if I
> > >don't see any result then I do a hard reset. You can save a lot of
> > >time with soft resets if you do a lot of experimenting. There is
> > >actualy a list of things which can use the soft reset, don't know it
> > >by heart, do a little research.
> > >
> > >-----Original Message-----
> > >From: Packet Man [mailto:ccie2b@hotmail.com]
> > >Sent: Wednesday, March 03, 2004 7:42 PM
> > >To: ccielab@groupstudy.com
> > >Subject: BGP session resets: Hard versus Soft
> > >
> > >
> > >Hi gang,
> > >
> > >On a 2500 series router, doing a hard reset of a BGP session takes
> > >about 1 to 2 minutes. In the lab, since they use higher end routers,
>
> > >I'm wondering how long that takes?
> > >
> > >Also, I've herad that soft resets aren't 100% reliable and therefore
> > >I should just do a hard reset. So, bottom line, do people think it's
>
> > >better to do hard or soft BGP session resets in the real lab.
> > >
> > >Thanks in advance, PM
> > >
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