Re: [c-nsp] OT: Enterprise (Not ISP) Maintenance Windows

2014-09-29 Thread Joe Provo
[yeah, OT and should be on NANOG or similar, but this will more likely get you real answers, sadly.] On Fri, Sep 26, 2014 at 02:42:56PM -0700, Scott Voll wrote: For those of you working in an enterprise, company, agency, etc. Do you have a standard (network) maintenance windows? If so,

Re: [c-nsp] Loopback IP set to .255 - 6500 responds to ICMP echo-request from wrong interface

2012-01-01 Thread Joe Provo
On Sat, Dec 31, 2011 at 09:33:19PM -0800, Eric Rosenberry wrote: I am scratching my head here wondering if I have run into a Cisco bug, or somehow intended weird behavior... Bug. I encountered less of them with foo.0/32 than foo.255/32, but an uphill battle to them to DTRT. -- RSUC

Re: [c-nsp] Current BGP BCP for anchoring and announcing local prefixes

2010-03-16 Thread Joe Provo
On Mon, Mar 15, 2010 at 01:08:03PM -0400, Jason Lixfeld wrote: I've been in the habit of using communities to anchor and announce prefixes into BGP for years and I think my ways are somewhat dated. I'm looking for a bit of a refresh. Wondering if anyone here has any thoughts ;) [snip]

Re: [c-nsp] Which IP's belong to AS1234?

2009-09-25 Thread Joe Provo
On Fri, Sep 25, 2009 at 06:12:22PM +1000, Andy Saykao wrote: Thanks for the reply guys. What I'm trying to achieve is to monitor the bandwidth utilization on our Internet link. So for example we want to know how much bandwidth is being utilized by our customers so we can say ah huh out of

Re: [c-nsp] OSPF to ISIS migartion

2009-09-23 Thread Joe Provo
On Wed, Sep 23, 2009 at 05:49:32AM -0400, William F. Maton Sotomayor wrote: On Wed, 23 Sep 2009, jack daniels wrote: Hi all , I have got a project for an ISP ( also LDP configured ) runnning OSPF to migrate to IS-IS. I was planning to runnn dual IGP , as ospf with AD 110 and ISIS with AD

Re: [c-nsp] eBGP -- OSPF -- eBGP vs eBGP -- iBGP -- eBGP

2009-04-27 Thread Joe Provo
On Mon, Apr 27, 2009 at 02:05:17PM -0400, Adam Greene wrote: Hi, We run BGP to our upstream providers and OSPF on our local backbone. We have a customer who will be multihomed and needs us to advertise his IP blocks to us via BGP. My question is how best to propagate his AS-PATH

Re: [c-nsp] BGP across continents

2009-04-07 Thread Joe Provo
On Tue, Apr 07, 2009 at 03:22:04PM +0100, Alasdair McWilliam wrote: [snip] Is there any way around this or is the only option to request a second ASN? Among the give you enough rope options, neighbor allowas-in; use with caution. There are many other options, including to build tunnels

Re: [c-nsp] 3/11 (invalid or corrupt AS path)

2009-02-16 Thread Joe Provo
On Mon, Feb 16, 2009 at 06:14:08PM +0100, Grzegorz Janoszka wrote: Ozar wrote: I am starting to see random BGP neighbor messages from multiple neighbors on different boxes. %BGP-3-NOTIFICATION: received from neighbor X.X.X.X 3/11 (invalid or corrupt AS path) 516 bytes [snip] No, it is

Re: [c-nsp] BGP route flap damping

2008-10-07 Thread Joe Provo
On Tue, Oct 07, 2008 at 12:58:59PM +0200, Pelle wrote: Hi. I don't have an answer to your question, but a thought about dampening. In theory, it's supposed to work, but thought it might be better to ask for advice and things to watch out for before deploying in the real world. BGP

Re: [c-nsp] OT: network inventory

2008-08-19 Thread Joe Provo
On Tue, Aug 19, 2008 at 09:04:29AM -0400, Adam Greene wrote: Besides documenting config changes, can rancid perform a tftp backup of router / switch startup configs, or integrate with some other software to pull down the config file if a change is detected? Lots of folks trigger rancid runs

Re: [c-nsp] 12.2SXH 'archive' / Configuration Management

2008-06-09 Thread Joe Provo
On Sun, Jun 08, 2008 at 04:38:23PM +0100, Simon Lockhart wrote: On Sun Jun 08, 2008 at 04:14:33PM +0100, Alex Howells wrote: That template makes fairly extensive use of the 'archive' command but some older IOS doesn't include that functionality; I've also seen/heard RANCID being deployed

Re: [c-nsp] Route Optimization/Control Options?

2008-05-13 Thread Joe Provo
On Tue, May 13, 2008 at 04:16:16PM -0400, David Prall wrote: [snip] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Shaun R. Sent: Tuesday, May 13, 2008 3:51 PM To: cisco-nsp@puck.nether.net Subject: [c-nsp] Route Optimization/Control Options?

Re: [c-nsp] VLSM - Cisco ACL - Extended ACL format table?

2007-12-27 Thread Joe Provo
On Sun, Dec 23, 2007 at 03:55:34PM +0200, Hank Nussbacher wrote: At 08:15 AM 23-12-07 -0500, Eric Van Tol wrote: Thanks. I might HTML later this week unless someone else has it online someplace. An old one of mine is up at http://www.gweep.net/~crimson/networks/netblocks.html ...or you

Re: [c-nsp] per-packet load sharing.

2007-12-10 Thread Joe Provo
On Sun, Dec 09, 2007 at 05:39:07PM -0800, virendra rode // wrote: [snip] In order to distribute traffic (load-sharing) across two links I'm looking at enabling equal cost traffic (per-packet load sharing) going out both serial links as their data processing is overloading one link. The equal

Re: [c-nsp] Network Topology Mapping

2007-10-28 Thread Joe Provo
From joe and stephen's nanog tutorial (http://www.nanog.org/mtg-0210/abley.html): ftp://ftp.isc.org/isc/toolmakers/mktop.tar.gz ftp://ftp.isc.org/isc/toolmakers/top2dot.tar.gz I'm a big fan of forcing provisioning/operational acceptance through the same system that creates/is part of your

Re: [c-nsp] MTU settings/GRE tunnel

2007-09-20 Thread Joe Provo
On Thu, Sep 20, 2007 at 03:51:00PM +0800, Nick Kraal wrote: [snip] You didn't indicate what types of devices, and specifically the media. A very good design rule for generally reducing any encapsulation problems is to be sure that your WAN links are running significantly higher MTU than your