Getting the odd message through, but DNS looks good via their Toronto,
Canada pop
% traceroute -q1 -I a.dns.facebook.com
traceroute to star.c10r.facebook.com (31.13.80.8), 64 hops max, 48 byte
packets
1 torix-core1-10G (67.43.129.248) 0.140 ms
2 facebook-a.ip4.torontointernetxchange.net (206
We noticed random traffic originating from AS577 stopped getting to our
ASN via Cogent in Montreal at around 00:24 this morning. Based on the
pattern I am guessing a broken next hop on one leg of a larger link ?
e.g. IP traffic leaving AS577 towards IP addresses in one of my /19s
will 100% wor
Looks to be fixed as of ~ 14:55 Eastern.
---Mike
On 6/24/2022 1:49 PM, mike tancsa wrote:
We noticed random traffic originating from AS577 stopped getting to
our ASN via Cogent in Montreal at around 00:24 this morning. Based on
the pattern I am guessing a broken next hop on one leg of a
re, during and after the experiment about the size of the global
routing table and how many ASNs were impacted ?
---Mike
--
---
Mike Tancsa, tel +1 519 651 3400 x203
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada
Anyone else seeing google imap timeouts / slowness ? We hit their
services in Toronto Canada for ipv6 and ipv4 via gtt (However, ipv4
seems to come back via Torix). I am not seeing packet loss, just a lot
of slowness in response at the app layer. google status says all ok.
Problems started ar
ive. Perhaps give it a try and see
---Mike
--
---
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
2197 262197 262197 262197 262197 262197 262197 262197 262197 262197
> 262197 262197 262197 262197 262197 262197 262197 262197 262197 262197 262197
> 262197 262197 262197 262197 262197 262197 262197 262197 262197 262197 262197
> 262197 262197 262197 262197 262197 262197 262197 262
This was at about 02:05 Eastern to ~ 02:20. Were they
perhaps doing some big upgrades ?
---Mike
--
---
Mike Tancsa, tel +1 519 651 3400 x203
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada
p://www.sosdg.org/ http://www.ahbl.org
--------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications,m...@sentex.net
Providing Internet since 1994www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
---Mike
----
Mike Tancsa, tel +1 519 651 3400
Sentex Communications,m...@sentex.net
Providing Internet since 1994www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
On 11/18/2010 4:39 PM, Nick Olsen wrote:
> Curious as to who is running IPv6 with TW Telecom or Cogent.
> I'm wanting to turn up native IPv6 with them, And wanted to hear
> thoughts/experiences.
> I assume it should be a "non-event". We've already got a prefix from arin
> that we are going to ann
On 11/18/2010 5:14 PM, Lee Riemer wrote:
> Try tracerouting to 2001:500:4:13::81 (www.arin.net) or
> 2001:470:0:76::2 (www.he.net) via Cogent.
>
Interesting. I noticed a similar issue with ipv6.cnn.com today. I dont
see it via TATA, but see it via Cogent. So whats the story behind it
and ARIN
On 11/18/2010 5:44 PM, Mike Tancsa wrote:
> On 11/18/2010 5:14 PM, Lee Riemer wrote:
>> Try tracerouting to 2001:500:4:13::81 (www.arin.net) or
>> 2001:470:0:76::2 (www.he.net) via Cogent.
>>
>
> Interesting. I noticed a similar issue with ipv6.cnn.com today. I dont
On 12/13/2010 10:10 AM, James Smith wrote:
>
> We're looking at implementing a DSL private network in various provinces in
> Canada. There seems to be two main ways to do this: build the network
> yourself by creating relationships with the local DSL providers (Bell, Telus,
> MTS, etc) ; or bu
On 12/21/2010 5:18 PM, Frank Bulk wrote:
> There are 4,035 routes in the global IPv6 routing table. This is what one
> provider passed on to me for routes (/48 or larger prefixes), extracted from
> public route-view servers.
> AT&T AS7018: 2,851 (70.7%)
> Cogent AS174: 2,864 (71.0%)
>
On 12/21/2010 7:10 PM, Mike Tancsa wrote:
> On 12/21/2010 5:18 PM, Frank Bulk wrote:
>> There are 4,035 routes in the global IPv6 routing table. This is what one
>> provider passed on to me for routes (/48 or larger prefixes), extracted from
>> public route-view servers
On 12/24/2010 12:55 PM, Elliott, Andrew wrote:
> -Original Message-
> From: Seth Mattinen [mailto:se...@rollernet.us]
> Sent: Thursday, December 23, 2010 8:37 PM
> To: nanog@nanog.org
> Subject: Re: IPv6 BGP table size comparisons
>
> On 12/21/10 2:18 PM, Frank Bulk wrote:
>> There are 4,
---Mike
--
---
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
s 1.696 ms 1.714 ms
28 66.151.28.149 (66.151.28.149) 2.074 ms 66.151.28.141
(66.151.28.141) 2.286 ms 1.919 ms
29 64.94.32.78 (64.94.32.78) 3.616 ms 2.337 ms 64.94.32.14
(64.94.32.14) 1.911 ms
30 208.122.29.21 (208.122.29.21) 1.737 ms 1.528 ms 1.554 ms
---Mike
On 7/8/2014 9:15 AM
---Mike
--
---
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
3-0-0-cr01.chicago.il.ibone.comcast.net (68.86.85.245)
> 57.243 ms 57.359 ms 57.333 ms
> 13 pos-2-13-0-0-cr01.newyork.ny.ibone.comcast.net (68.86.87.25) 85.080
> ms 85.020 ms 85.069 ms
> 14 te-2-1-pe01.philadelphia.pa.ibone.comcast.net (68.86.84.194) 87.264
> ms 86.372 ms 86
em / by them.
---Mike
--
---
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
On 8/3/2011 5:32 PM, Jason Lixfeld wrote:
> On 2011-08-03, at 3:50 PM, Mike Tancsa wrote:
>
>> On 8/3/2011 3:31 PM, James Smallacombe wrote:
>>>
>>>
>>> However, I AM seeing problems right now as described below...anybody
>>> aware of any Verizon is
Timeout : 300 (sec)
Verify return code: 20 (unable to get local issuer certificate)
---
* OK Gimap ready for requests from 199.212.134.2 bj1if1491559oac.162
^C
1(marble)%
--
-------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Interne
% is v6 for outbound,
4% for v6 is inbound.
I suspect the higher inbound values might be due to tech mailling lists
which tend to come from IPv6 enabled hosts ?
---Mike
--
---
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet
36 msec 128 msec
if-1-0-0.core4.TNK-Toronto.as6453.net (63.243.172.1) [AS 6453] 116 msec
29 if-14-0-0.mcore3.TTT-Scarborough.as6453.net (63.243.172.2) [AS 6453]
[MPLS: Label 3208 Exp 0] 128 msec 124 msec 116 msec
30 * 152 msec 120 msec
route-views>
--
---
Mike Tancsa,
014, at 12:45 PM, Marshall Eubanks
wrote:
This message has no content.
--
---
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
ET
changed: rdar...@inflow.com 20040330
source: SAVVIS
--
---
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
;You know, my RADIUS servers
just dont get enough spike load..."
---Mike
--
---
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
---Mike
--
---
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
Mike Tancsa, tel +1 519 651 3400
Sentex Communications,m...@sentex.net
Providing Internet since 1994
At 10:01 AM 6/11/2009, Andrew Mulholland wrote:
We didn't have such problems.
Had nx1Gig from them.
On the few occasions where we had some slight issues, I was happy to
be able to get through to some one useful on the phone quickly, and
not play pass the parcel with call centre operatives.
I see it now via
6453 7132 109
174 1239 109
---Mike
Mike Tancsa, tel +1 519 651 3400
Sentex Communications,m...@sentex.net
Providing Internet since
er is '^]'.
220 as08.bis.na.blackberry.com ESMTP
HELO marble.sentex.ca
250 as08.bis.na.blackberry.com
MAIL From:
451 #4.1.8 Domain of sender address does not resolve
--------
Mike Tancsa, tel +1 519
At 03:40 PM 12/3/2008, Mills, Charles wrote:
Their other pages (finance.yahoo.com) and such seem to resolve ok.
Wondering if it isn't part of a bigger problem because I got a complaint
that many sites
Were unreachable for a bit.
www.yahoo.com seems to be a CNAME for wa1.b.yahoo.com and delega
At 12:20 PM 1/20/2009, Jay Hennigan wrote:
We're a regional ISP, about 80% SMB 20% residential. We're seeing
almost double our normal downstream traffic right now. Anyone else?
Yes, close to double normal traffic here in south-west Ontario, Canada.
---Mike
se at first. Some browsers deal with it differently. on IE, most
of the page does not display until the seal comes up or times out.
---Mike
----
Mike Tancsa, tel +1 519 651 3400
Sentex Commu
At 02:32 PM 3/5/2009, Christopher Morrow wrote:
Perhaps Thawte/VS is experiencing some LB or load issues?
If any verisign folks are around, it would make life a lot easier if
an RST was sent instead of timing out like it is/was
---Mike
At 12:19 AM 4/10/2009, Rubens Kuhl wrote:
On shared media like radio access, every unwanted packet means less
performance you will get out of the network.
This can be done by NAT,
stateful filtering with public IPs or stateless filtering with public
IPs; the advantage of doing NAT is making it ea
ket but was not
able to get any info to SBC/ATT past first level support.
Anyone know of any issues ?
---Mike
--------
Mike Tancsa, tel +1 519 651 3400
Sentex
At 10:58 AM 5/30/2008, Frank Bulk wrote:
Required:
- temperature sensor
- 110 VAC power monitoring (on/off, not necessarily current)
- Ethernet interface (at least SNMP, Web GUI and
We have been using "Uptime Devices". Our units have room for 3
sensors (we have 2 temp and one for humidity).
At 12:10 PM 6/3/2008, David Coulson wrote:
the cheapest, that's for sure. I've not heard anything about them in
the last couple of months, but the last year has been filled with
almost monthly service outages or congestion.
They are also one of the biggest providers... Proportionally
speakin
ent.
>
> www.internetpulse.net seems to be lighting up.
>
>
--
-------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
7.153.18.19574: Flags [.], ack
2, win 89, options [nop,nop,TS val 1980791314 ecr 2436358775], length 0
---Mike
--
-------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
lly) to duplicate the issues, seems like extremely slow
> responses from the servers I have tested, as well seems the web servers
> are also either overloaded or just dropping packets. Just wondering if
> anyone else is seeing the same.
>
> Kind Regards,
> -Joe Blanchard
>
>
if you see the loss from there to China.
---Mike
--
---
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
v6
status.
http://www.torix.net/peers.php
---Mike
--
-------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
://code.google.com/p/ipv6gen/
>
> Very useful. Granted its not what you were asking for exactly
I use it as well. Great tool. (In the FreeBSD ports tree too). I have
also made use of the perl tool Net::IPv6Addr.
---Mike
--
---
Mike Tancsa, tel +1 519 651 3400
Sen
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