is not trivial)
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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ervers (usually done to troubleshoot things), to run
traceroutes, to ping stuff, etc.
gert
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Gert Doering - Munich, Germany g...@greenie.
apart with cascading failures...
But there's a famous quote here - "I recommend this to all my competitors".
Network stability is overvalued anyway :-)
gert
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-automatism engine
playing tricks in the background)
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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Hi,
On Wed, Dec 11, 2013 at 11:06:22PM +0200, Mark Tinka wrote:
> On Wednesday, December 11, 2013 10:57:48 PM Gert Doering
> wrote:
>
> > Not unusal to see such thing over here. Both Patrick and
> > I run "mostly datacenter style" ISPs today, with not
> > m
stems
and hardware drivers") or when you want to make more efficient use
of your mostly-unused super quick CPUs, but "single VM on single
hardware" seems... complicated to me.
gert
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are event.
gert
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extbook configuration,
because the textbook setup doesn't make sense for us - so I'm not opposed
to RRs in general, just to blindly deploying what other people think
everyone should do)
gert
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Hi,
On Wed, Dec 11, 2013 at 08:36:04PM +, Nick Hilliard wrote:
> On 11/12/2013 19:16, Gert Doering wrote:
> > I'm not particularily advocating "doing it all without BGP", but I do
> > object to "it's in the textbook, thus everybody needs to do it that w
ternative - but for a network with
single-digit routers, and below 100 LSAs, "operational simplicity" wins,
and I am fully convinced that "adding RRs" is not on the "simplicity"
side of things.
gert
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27;ve been doing IXPs for too long. This is not good for you.
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +4
the IGP's aren't converged
> until they can confirm this.
Just run EIGRP, no issues here :-)
*duck*
gert
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Gert Doering - Munich, Germany
m either)
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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an't say how well they function there. But I wouldn't
use a 3750 for that either.
gert
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Gert Doering - Munich, Germany g...@gr
nneling!" solutions will get
IPv6 right...
http://tools.ietf.org/html/draft-ietf-opsec-vpn-leakages-02
gert
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Gert Doering - Munich, Germany
e would need to know
that there is IPv6 involved as well.
Wrong page of the "poor excuses for every day" calendar, maybe.
gert
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Gert Doering - Munich, Ge
for free?
gert
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p
3/3...
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muenchen
Hi,
On Thu, Nov 28, 2013 at 01:34:49PM +0100, Antonio Prado wrote:
> -BEGIN PGP SIGNED MESSAGE-
> On 28/11/13 12:56, Gert Doering wrote:
> > Your router only has a single session, but uses this to transport
> > both address family. (I'd not do it that way,
e non-clickable part of WWW!
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muenchen.de
pgp7gpZimKKn7.pgp
er why I have to move IPv4 HSRP to "standby version 2"
if it's a new session + new group anyway for IPv6. But then, mysterious
are the wonders of IOS development...
gert
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/
t
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pgpcZ
e non-clickable part of WWW!
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pgpyy7Ja_GG4i.pgp
= well, "we're too big to fail, who needs customers anyway".
Both are not exactly examples of upstreams we'd be happy to buy from
(so we don't).
gert
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Description: PGP signature
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pgp5S6TODv5Mz.pgp
Description: P
led with offset-list and such to make
certain neighbours on a multiaccess network less preferred. But usually
we just go with the defaults, which normally works fine.
This is why I'm wondering whether "show ip ei top" would have some
interesting output...
gert
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ert
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10 years of non-use)
gert
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pgpSokj8TmnCG.pgp
Description: PGP sig
Hi,
On Fri, Nov 15, 2013 at 06:49:43AM +0100, Mikael Abrahamsson wrote:
> On Thu, 14 Nov 2013, Gert Doering wrote:
>
> >Easier on CPU load but more maintenance if prefixes keep being added is
> >to filter by prefix-list... so it depends a bit on how fast your
> >ro
PU is, how often prefixes change, etc.
gert
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s. This was not so clear to me from the quote provided.
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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es HSRP on a SVI...
GLBP is active-active in that both L3 routers will accept packets to the
world, instead of L2-forwarding them to the other one inside the SVI.
gert
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Hi,
On Thu, Nov 14, 2013 at 05:16:15AM +1100, Andrew Miehs wrote:
> HSRP is dual active on the Nexus, so I would just go with that.
How does that work?
gert
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G
e part of WWW!
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Gert Doering - Munich, Germany g...@greenie.muc.de
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pgpB3Wg3nrq4v.pgp
Description:
t;enter information for opening a TAC case" need *Java*
anyway?
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.i
15.1SY, as I can then sort of "field test" this without
affecting too many customers... and if it turns out to be good enough,
we might upgrade the rest. Or not. Or downgrade these boxes...
gert
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l client, like "thunderbird".
Or maybe there's a setting in hotmail somewhere "do not reformat paragraphs",
etc.
gert
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Gert Doering - Munich
//www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094051.shtml
title is "Problems with Running OSPF in NBMA and Broadcast Mode over
Frame Relay".
gert
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//www.mu
es...
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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sides the SME stuff) "bugdget switch" is
interesting, tho :-)
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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ng off-topic, but the whole idea of people actually working on this
is something I find exciting :-)
gert
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Gert Doering - Munich, Germany g...@
illed
the buffers, while the average traffic across all ingress ports was
WAY below the rate the egress could handle. Microbursts, too little
buffering, switches not suited for that traffic.
gert
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ickable part of WWW!
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Gert Doering - Munich, Germany g...@greenie.muc.de
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pgpx6QpRLM5Ml.pgp
Descrip
is not
an additive one, but a 100-AP-license" (and as you already have 500, it
is refusing to go lower).
If TAC is not able to make sense out of that error message, escalate.
gert
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WWW!
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muenchen.de
pgp4Bt7u8DUR_.pgp
Description: PGP signat
Hi,
On Thu, Sep 12, 2013 at 08:15:01PM -0700, Pete Templin wrote:
> On 9/12/13 11:30 AM, Gert Doering wrote:
>
> >To be fair, one would need to compare software features - so what does
> >the N3K do? L2 only? L3, with how many routes? IPv6, MPLS?
>
> Gert, you don&#
our
config, but *as far as I understand* "crypto map style" is still
supported.
So... I would just try it on one box, and if it comes up and all the
IPSEC config is borked, go back to 12.2, and go to the lab to see
what needs changing :-)
gert
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gert
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pgpCf43VteAou.pgp
Description: PGP signature
__
a "no shut" missing
on the vlan subif or the main interface).
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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t* the non-clickable part of WWW!
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Gert Doering - Munich, Germany g...@greenie.muc.de
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pgpXDaVCegdW
figuring out where that damn cable went...)
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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pgppuJAmQHEpm.pgp
Descript
work with it).
gert
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Description: PGP signature
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rt
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Description: PGP signature
_
ices)
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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ot* the non-clickable part of WWW!
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muenchen.de
pgp_I9o4etQDp.pgp
Descr
Hi,
On Fri, Aug 30, 2013 at 09:37:47AM +0100, Nick Hilliard wrote:
> On 30/08/2013 08:40, Gert Doering wrote:
> > I was thinking about ASR9k, which have EIGRP, and a modular OS :-)
>
> And an entirely new category of things to complain about! I can't wait to
> see ho
"this is a link that goes through some L2 switching
gear, so if the remote router crashes, the local router will still see
link on the port", BFD will be the protocol to detect the outage.
gert
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Hi,
On Fri, Aug 30, 2013 at 04:44:40AM +0200, Mark Tinka wrote:
> On Thursday, August 29, 2013 07:41:44 PM Gert Doering wrote:
>
> > (OTOH, if they have started the licensing bullshit on
> > 6500/7600s now, I think I go shopping elsewhere)
>
> Are you willing to throw
ted the licensing bullshit on 6500/7600s now,
I think I go shopping elsewhere)
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax:
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muen
s.
> So what is the best practice to deploy conditional advertisement.
"Not use features that you don't understand"
gert
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;t guarantee "no outage", but if something goes wrong changing
the interface config, the router will reboot into it's previous config
5 minutes later, so you get another try)
gert
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ot;nah, the hardware on
6500s cannot do this!" will lead to extended ranting...
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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able part of WWW!
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Gert Doering - Munich, Germany g...@greenie.muc.de
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pgpmc8LCx4Hog.pgp
Descriptio
it
happens again, I'd re-seat all NMs (power off the 3640 first) and make
sure all are solidly seated and properly fastened.
gert
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Gert Doering - Mu
est IPv6 capable IOS version...
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informa
ET is *not* the non-clickable part of WWW!
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Gert Doering - Munich, Germany g...@greenie.muc.de
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Description: PGP signature
2T, though.
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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pgppeWZxVWGfx.pgp
Description: PGP
ething important the others already have.
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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pgpeP
e they know
that they (for some funny reason) never like my answers.
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35
lickable part of WWW!
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Gert Doering - Munich, Germany g...@greenie.muc.de
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Descriptio
*not* the non-clickable part of WWW!
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Gert Doering - Munich, Germany g...@greenie.muc.de
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Description: PGP signature
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point me to more details?
gert
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of WWW!
//www.muc.de/~gert/
Gert Doering - Munich, Germany g...@greenie.muc.de
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Description: PGP sig
n-clickable part of WWW!
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Descriptio
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muenchen.de
pgp5QEYVU2Xua.p
document to export, but it's absolutely necessary for upstream ASes on
that level to very strictly limit what they accept.
gert
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Gert Doering - Munich, Germany
ly
supported and on par with IPv4. As it needs to be.
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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. Happy customer.
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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pgpTzB4hXLFVW.pgp
Description: PGP signat
all reliability is still amazing.
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g.
ENET is *not* the non-clickable part of WWW!
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muenchen.de
pgp2am3Tz94cl.pgp
Description: PGP signature
__
ust change the documentation.
(The way Cisco software engineering treats malfunctions that are not
outright catastrophic is... not suitable to make customers happy)
gert
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working...
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
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pgpYA6XdDn6R5.pgp
Description: PGP signature
___
rom behind another router", so you need the MAC address of the previous-hop
router to backtrack stuff.
gert
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Gert Doering - Munich, Germany
documents that they
assume a half-way sane vendor would *keep*, when doing hardware
improvements...
gert
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Gert Doering - Munich, Germany g...
e part of WWW!
//www.muc.de/~gert/
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Description:
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Des
ell.
gert
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fax: +49-89-35655025g...@net.informatik.tu-muenchen.de
pgpk20O80Qwb6.pgp
Description: PGP signatu
s netflow with MAC addresses already, which ASRs don't
do yet... :-)
gert
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Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-
re specifics if no other options is possible -
and nobody can guarantee that your more specifics will continue to work
in 10 years (not for IPv4 either).
gert
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//www.muc.de/~gert/
Gert D
t want "15.0!" on stupid-BU devices...
gert
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//www.muc.de/~gert/
Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025
of WWW!
//www.muc.de/~gert/
Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muenchen.de
pgpDksHQ2Zc3c.pgp
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Hi,
On Fri, Jun 07, 2013 at 03:17:54PM +0200, Mark Tinka wrote:
> On Friday, January 11, 2013 09:07:47 PM Gert Doering wrote:
>
> > All these IOS versions are ancient.
> >
> > 12.4(latest)-with-no-letters, or 15.0(latest)M would be
> > my recommendation.
>
&g
be configured on the members for one direction
and on the channel for the other direction is... pretty creative, to
say the least.
gert
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USENET is *not* the non-clickable part of WWW!
//www.muc.de/~gert/
Gert Doering
ddition to what Pete suggested, see whether you can deploy
rapid pv-stp ("spanning-tree mode rapid-pvstp").
gert
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USENET is *not* the non-clickable part of WWW!
//www.muc.de/~gert/
Gert Doering - Munich, Germany
ormer, but QA seems to be lacking still...
gert
--
USENET is *not* the non-clickable part of WWW!
//www.muc.de/~gert/
Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025
opic, as it's about networking!!).
gert
--
USENET is *not* the non-clickable part of WWW!
//www.muc.de/~gert/
Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.i
of WWW!
//www.muc.de/~gert/
Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muenchen.de
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