From: Jason Madsen (madsen.jason@gmail.com)
Date: Thu Jul 10 2008 - 17:18:13 ART
that's what i was thinking. how difficult is it installing and setting up
dynamips on linux vs. windows? do you use gns3 or plain jane dynamips with
dynagen?
On Thu, Jul 10, 2008 at 2:06 PM, Igor Manassypov <imanassypov@rogers.com>
wrote:
> Yep, that will happen if your cpu nears its limit... Was happening on my
> also when I was running it on windows. Scheduling is really bad for these
> things on it. Ideally I would recommend a souped-up linux server with lots
> of ram for it. I am running ie scale labs, and I needed two dual-core blades
> with 4gb worth of memory each. Even on those I can tell a slowdown closer
> towards where you enable bgp's...
>
>
> *Jason Madsen <madsen.jason@gmail.com>* wrote:
>
> Has anyone experienced instability using Dynamips with constant Spanning
> Tree changes e.g. list, lrn, blk, fwd...etc? I believe I'm seeing this
> because of the latency associated with running Dynamips on my computer, but
> I'm wondering if that's the case or if there's something else inolved
> configuration-wise?
>
> here's what I'm seeing on the one device having issues (debug spann
> event output):
>
> *Mar 1 00:42:06.955: STP: VLAN1 Fa0/0 -> blocking
> R3#
> *Mar 1 00:42:30.011: STP: VLAN1 Fa0/0 -> listening
> R3#
> *Mar 1 00:42:31.927: STP: VLAN1 heard root 32768-cc02.1594.0000 on Fa0/0
> *Mar 1 00:42:31.931: current Root has 1600-cc00.1594.0000
> R3#
> *Mar 1 00:42:32.967: STP: VLAN1 Fa0/0 -> blocking
> R3#
> *Mar 1 00:42:52.987: STP: VLAN1 Fa0/0 -> listening
> *Mar 1 00:42:53.091: STP: VLAN1 heard root 32768-cc02.1594.0000 on Fa0/0
> *Mar 1 00:42:53.095: current Root has 1600-cc00.1594.0000
> *Mar 1 00:42:53.143: STP: VLAN1 Topology Change rcvd on Fa0/0
> *Mar 1 00:42:53.143: STP: VLAN1 sent Topology Change Notice on Fa0/1
> R3#
> *Mar 1 00:42:54.103: STP: VLAN1 Fa0/0 -> blocking
> R3#
> *Mar 1 00:43:15.123: STP: VLAN1 Fa0/0 -> listening
> *Mar 1 00:43:15.151: STP: VLAN1 heard root 32768-cc02.1594.0000 on Fa0/0
> *Mar 1 00:43:15.155: current Root has 1600-cc00.1594.0000
> *Mar 1 00:43:15.275: STP: VLAN1 Topology Change rcvd on Fa0/0
> *Mar 1 00:43:15.279: STP: VLAN1 sent Topology Change Notice on Fa0/1
> R3#
> *Mar 1 00:43:16.219: STP: VLAN1 Fa0/0 -> blocking
> R3#
> *Mar 1 00:43:37.203: STP: VLAN1 Fa0/0 -> listening
> *Mar 1 00:43:37.983: STP: VLAN1 heard root 32768-cc02.1594.0000 on Fa0/0
> *Mar 1 00:43:37.987: current Root has 1600-cc00.1594.0000
> *Mar 1 00:43:38.071: STP: VLAN1 Topology Change rcvd on Fa0/0
> *Mar 1 00:43:38.075: STP: VLAN1 sent Topology Change Notice on Fa0/1
> R3#
> *Mar 1 00:43:38.967: STP: VLAN1 Fa0/0 -> blocking
> R3#
> *Mar 1 00:44:01.159: STP: VLAN1 Fa0/0 -> listening
> *Mar 1 00:44:01.999: STP: VLAN1 heard root 32768-cc02.1594.0000 on Fa0/0
> *Mar 1 00:44:02.003: current Root has 1600-cc00.1594.0000
> *Mar 1 00:44:02.051: STP: VLAN1 Topology Change rcvd on Fa0/0
> *Mar 1 00:44:02.055: STP: VLAN1 sent Topology Change Notice on Fa0/1
> R3#
> *Mar 1 00:44:02.975: STP: VLAN1 Fa0/0 -> blocking
>
>
>
> Jason
>
>
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> Igor M., M.Eng, P.Eng
> Network Architect
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