Re: IPv6: IS-IS or OSPFv3

On Saturday 27 December 2008 12:56:39 pm devang patel wrote: > Thanks for pointing out other good part of having CLNS as > a transport for ISIS as a security point! We've been happy with IS-IS, having migrated from OSPF ealrier on in the year. We like it because it lets us "stretch" the network

Re: IPv6: IS-IS or OSPFv3

On Fri, 26 Dec 2008, devang patel wrote: I do have some confusion about which one is better for IPv6 in Service Provider networks as far as IP routing and MPLS application is concern! Both work and have advantages and disadvantages. Personally, I like the fact that IPv4 and IPv6 control plane

Re: What to do when your ISP off-shores tech support

david raistrick wrote: > On Sat, 27 Dec 2008, JF Mezei wrote: > >> The problem with oursourced first level support is that they are totally >> disconnected from real time operations and wouldn't be aware of problems >> that network engineers are currently working on. > > Not always true. Our out

RE: IPv6: IS-IS or OSPFv3

>Personally, I like the fact that IPv4 and IPv6 control plane are >different, thus I'd go for OSPv3. I totally agree on the discrete/segregated control planes, although note that - for those who want it - OSPFv3 will "soon" be able to do IPv4 route exchange as well ... /TJ >-Original Mess

Re: IPv6: IS-IS or OSPFv3

TJ wrote: >> Personally, I like the fact that IPv4 and IPv6 control plane are >> different, thus I'd go for OSPv3. > > I totally agree on the discrete/segregated control planes, although note > that - for those who want it - OSPFv3 will "soon" be able to do IPv4 route > exchange as well ... Only

Re: IPv6: IS-IS or OSPFv3

For IS-IS, highly recommend MT to avoid any nasties while turning up v6 in a dual-stack environment. as one who has been burned when topologies are not congruent, i gotta ask. if i do not anticipate v4 and v6 having different topologies, and all my devices are dual-capable, would you still re

Attacking a critical Internet infrastructure

Hi folks and happy new year! I am emailing to spam about a talk about to be given at the CCC conference (25c3). I apologize for the cross-posting. At the 4th day of CCC (30th), there is an interesting as-of-yet no details disclosed talk by a couple of good people. http://events.ccc.de/congr

Re: IPv6: IS-IS or OSPFv3

On Saturday 27 December 2008 09:08:50 pm Martin List- Petersen wrote: > Only if the vendors pick up on those changes. Juniper support this since JunOS 9.2 (draft-ietf-ospf-af- alt-06.txt). Cheers, Mark. signature.asc Description: This is a digitally signed message part.

RE: IPv6: IS-IS or OSPFv3

>>> Personally, I like the fact that IPv4 and IPv6 control plane are >>> different, thus I'd go for OSPv3. >> >> I totally agree on the discrete/segregated control planes, although note >> that - for those who want it - OSPFv3 will "soon" be able to do IPv4 route >> exchange as well ... > >Only if

Re: What to do when your ISP off-shores tech support

Skywing wrote: I find those speech recognition menus quite annoying. American Airlines has one that's just not good enough over a lower bitrate cell voice link in a crowded situation when you're trying to determine what's the deal with cancelled flights or whatnot along with everyone else in th

Re: IPv6: IS-IS or OSPFv3

Having worked for seveal SP's 'tier 1' and otherwise along with a couple of router vendors IMO MT is one of those thing people ask for just in case. Sure we _could_ always find a use for it, but we don't always look at the potential diffrent IGP topologies are going to cause for our NOC staff @

Re: IPv6: IS-IS or OSPFv3

Hi, Thanks all of you to provide your inputs on my questions! The main idea behind Multitopology in IS-IS is to enabling the IPv6 routing in the redundant part of the network so that way I will not mess around with the current IPv4 routing or services which is running or serving to customers curr

Re: What to do when your ISP off-shores tech support

Skywing wrote: I find those speech recognition menus quite annoying. American Airlines has one that's just not good enough over a lower bitrate cell voice link in a crowded situation when you're trying to determine what's the deal with cancelled flights or whatnot along with everyone else in

Re: IPv6: IS-IS or OSPFv3

On Sat, 27 Dec 2008, Randy Bush wrote: as one who has been burned when topologies are not congruent, i gotta ask. if i do not anticipate v4 and v6 having different topologies, and all my devices are dual-capable, would you still recommend mt for other than future-proofing? Personally, if my

Re: IPv6: IS-IS or OSPFv3

as one who has been burned when topologies are not congruent, i gotta ask. if i do not anticipate v4 and v6 having different topologies, and all my devices are dual-capable, would you still recommend mt for other than future-proofing? Personally, if my v4 and v6 topologies are not different, I'd

Re: IPv6: IS-IS or OSPFv3

TJ wrote: I do have some confusion about which one is better for IPv6 in Service Provider networks as far as IP routing and MPLS application is concern! General rule of thumb - use whichever you / your operation is most familiar with. Using IS-IS today, use it for IPv6. Using O

Re: What to do when your ISP off-shores tech support

On 27 Dec 2008, at 05:59, JF Mezei wrote: The problem with oursourced first level support is that they are totally disconnected from real time operations and wouldn't be aware of problems that network engineers are currently working on. That's a problem with a lot of internal first line te

Re: IPv6: IS-IS or OSPFv3

On Fri, 26 Dec 2008 20:37:41 -0800 "Kevin Oberman" wrote: > The main reason I prefer ISIS is that it uses CLNS packets for > communications and we don't route CLNS. (I don't think ANYONE is > routing CLNS today.) That makes it pretty secure. Unless, of course, someone one hop away -- a peer? a

Re: What to do when your ISP off-shores tech support

On Fri, 26 Dec 2008 19:10:13 -0600 (CST) Joe Greco wrote: > I did ask, and all the local people are, in fact, local. It's a > matter of training and technical knowledge. None of them was really > putting together the fact that the modem was sketchy for the service > class we had. Yup -- I've h

RE: IPv6: IS-IS or OSPFv3

> ... not to mention that fact that IS-IS is, IMHO, a much nicer IGP to work with. WRT that last sentence, that is an almost religious debate I was trying to avoid starting ... :) /TJ

Re: IPv6: IS-IS or OSPFv3

On Fri, 26 Dec 2008, devang patel wrote: Thanks for pointing out other good part of having CLNS as a transport for ISIS as a security point! It's also a potential hassle, where you can have IS-IS up and running, but have IP completely hosed. With OSPF this is harder as it actually runs over

RE: IPv6: IS-IS or OSPFv3

TJ wrote: >> ... not to mention that fact that IS-IS is, IMHO, a much nicer IGP to >> work > with. > > WRT that last sentence, that is an almost religious debate I was trying to > avoid starting ... :) > I will offer a mantra that has helped me, over the years, about the indeed religious wars that

Re: IPv6: IS-IS or OSPFv3

Steven M. Bellovin writes: >Unless, of course, someone one hop away -- a peer? a customer? an >upstream or downstream? someone on the same LAN at certain exchange >points? -- sends you a CLNP packet at link level... True enough, and mistakenly enabling ISIS on external ports has been known to ha

RE: What to do when your ISP off-shores tech support

I once had an @home rep insist that my connection was down because there was ice in the lines. No matter how many times I told him it was 58 degrees outside he stuck to his guns and insisted that was the problem. Richey -Original Message- From: Steven M. Bellovin [mailto:s...@cs.columbi

Re: IPv6: IS-IS or OSPFv3

TJ wrote: ... not to mention that fact that IS-IS is, IMHO, a much nicer IGP to work with. WRT that last sentence, that is an almost religious debate I was trying to avoid starting ... :) Well IMHO it's a very important point to consider. This is a great chance to switch your IGP, if y

Re: IPv6: IS-IS or OSPFv3

> Date: Sat, 27 Dec 2008 15:23:25 -0500 > From: "Steven M. Bellovin" > > On Fri, 26 Dec 2008 20:37:41 -0800 > "Kevin Oberman" wrote: > > > The main reason I prefer ISIS is that it uses CLNS packets for > > communications and we don't route CLNS. (I don't think ANYONE is > > routing CLNS today.)

Re: Cap'n Bubba the marine backhoe driver - SEA-ME-WE 3 and 4, FLAG cut

On Fri, Dec 19, 2008 at 12:17 PM, Suresh Ramasubramanian wrote: > On Dave Farber's IP list. > >> >> From: France Telecom / Press >> To: France Telecom / Press >> Subject: Three undersea cables cut: traffic greatly disturbed between >> Europe and Asia/Near East zone >> Date: Fri, 19 Dec 2008 17:0

Re: Cap'n Bubba the marine backhoe driver - SEA-ME-WE 3 and 4, FLAG cut

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Martin Hannigan wrote: > On Fri, Dec 19, 2008 at 12:17 PM, Suresh Ramasubramanian > wrote: >> On Dave Farber's IP list. >> >>> From: France Telecom / Press >>> To: France Telecom / Press >>> Subject: Three undersea cables cut: traffic greatly dist

Re: Cap'n Bubba the marine backhoe driver - SEA-ME-WE 3 and 4, FLAG cut

The repair is done out of the water. They cut the damage out and bring and end onto the ship and, using a common joint that all the vendors use so that any available lay/repair ship in the maintenance consortium can be dispatched for repair, they fusion splice the new section and coat in LDPE and

Re: Cap'n Bubba the marine backhoe driver - SEA-ME-WE 3 and 4, FLAG cut

Apology in advance for the additional followup; The other 'exception' to add to my previous post is Hibernia terrestrial+marine via Halifax to Greenland Conect interconnected with either Danice or Farice via Iceland. Hibernia Ireland+London would be lower latency for US route, with the second pote

Re: IPv6: IS-IS or OSPFv3

On Saturday 27 December 2008 09:27:05 pm Randy Bush wrote: > as one who has been burned when topologies are not > congruent, i gotta ask. if i do not anticipate v4 and v6 > having different topologies, and all my devices are > dual-capable, would you still recommend mt for other than > future-pro

Re: Cap'n Bubba the marine backhoe driver - SEA-ME-WE 3 and 4, FLAG cut

On Sat, Dec 27, 2008 at 10:23 PM, Martin Hannigan wrote: > The repair is done out of the water. They cut the damage out and bring there was a nice flash video thingy presented in Toronto during Sylvie LaPerrière's preso: I bel

Re: Cap'n Bubba the marine backhoe driver - SEA-ME-WE 3 and 4, FLAG cut

On Sun, Dec 28, 2008 at 1:30 AM, Christopher Morrow wrote: > On Sat, Dec 27, 2008 at 10:23 PM, Martin Hannigan > wrote: > > The repair is done out of the water. They cut the damage out and bring > > there was a nice flash video thingy presented in Toronto during Sylvie > LaPerrière's preso: > >

Re: What to do when your ISP off-shores tech support

Matthew Black wrote: > On Wed, 24 Dec 2008 10:10:33 -0800 > Etaoin Shrdlu wrote: >> Matthew Black wrote: >> >>> On Wed, 24 Dec 2008 09:51:41 -0800 >>> "Tomas L. Byrnes" wrote: >>> Cox Communications has fully on-shore support. Here in SD they are actually LOCAL. >> >>> In Verizon land

Re: What to do when your ISP off-shores tech support

Matthew Black wrote: > I've had difficulties reaching anyone with a brain > at my DSL provider Verizon California. > > I can reliably ping the first hop from my home to > the CO with a 25ms delay. But if I ping any other > location, packets get dropped or significantly > delayed. To me, this sound