From: Marko Berend (marko.berend@storm.hr)
Date: Thu Mar 04 2004 - 10:14:13 GMT-3
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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