Anyone here from Verizon keeping tabs on FiOS v6?

2022-08-25 Thread Rob Foehl
Maintenance outage last night, PD woke up shortly afterward and collected 
a /56, no joy after that -- egress traffic gets where it's going, ingress 
is dropped not far into 701.  Only visible covering route is the 
2600:4000::/24 aggregate, both externally and via Verizon's looking glass.


It looks like there are several reports of the same issue in other areas 
over the last couple months, where those that work have covering /36s 
advertised externally and the broken ones don't, e.g. no 
2600:4041:2000::/36 here.


Happy to follow up off-list, if so inclined.  Thanks!

-Rob



Re: Short-circuited traceroutes on FIOS

2019-12-11 Thread Rob Foehl

On Tue, 10 Dec 2019, Joe Maimon wrote:

Anyone have an idea why there are some destinations that on residential 
verizon fios here in NY area terminate right on first external hop?


They're returning fake ICMP echo replies from their BNGs for echo packets 
with TTL=1, thus any ICMP traceroute (Windows and mtr by default, etc.) 
seems to terminate at their layer 3 edge.  UDP/TCP traceroute are 
unaffected, ICMP works fine if you set the initial TTL to n+1 where n is 
the hop that's lying.


Support claims that it was a mistake, but it's also been 15+ months and 
it's pretty deliberate behavior.  Draw your own conclusions...


-Rob




Re: Mx204 alternative

2019-09-03 Thread Rob Foehl

On Mon, 2 Sep 2019, Hank Nussbacher wrote:

What about handling LAG on 1Gb/sec links?  That is a major showstopper if 
indeed it is missing:


It works, but only about as well as anything else to do with 1G interfaces 
works on the MX204, and only then when you're running at least 18.1R3...



show version |match "(model|junos):"

Model: mx204
Junos: 18.1R3-S4.2


show interfaces ae0 |match speed

  Link-level type: Flexible-Ethernet, MTU: 1522, Speed: 40Gbps,


show lacp interfaces ae0 |find protocol

LACP protocol:Receive State  Transmit State  Mux State
  xe-0/1/4  Current   Slow periodic Collecting distributing
  xe-0/1/5  Current   Slow periodic Collecting distributing
  xe-0/1/6  Current   Slow periodic Collecting distributing
  xe-0/1/7  Current   Slow periodic Collecting distributing


show chassis hardware |match SX

Xcvr 4   REV 02   740-011613   -   SFP-SX
Xcvr 5   REV 02   740-011613   -   SFP-SX
Xcvr 6   REV 02   740-011613   -   SFP-SX
Xcvr 7   REV 02   740-011613   -   SFP-SX


show interfaces xe-0/1/4 |match speed

  Speed: 10Gbps, BPDU Error: None, Loop Detect PDU Error: None,
  Flow control: Disabled, Speed Configuration: 1G


It just gets more bizarre from there.  Don't run 1G on these boxes if you 
can find any way to avoid it.


-Rob



Re: Zayo vs Coent

2018-11-12 Thread Rob Foehl

On Fri, 9 Nov 2018, Ca By wrote:


Zayo will provide you all of the internet


Only the parts for which someone has remembered to call in updates and/or 
which Zayo has remembered to apply to every manually maintained 
per-session prefix list, or for which someone has badgered them enough to 
switch to max prefixes only.  They have an incurable allergy to IRR, and 
it's a bundle of fun to sort out when something gets missed.


-Rob


Re: What's the point of prepend communities?

2017-10-28 Thread Rob Foehl

On Thu, 26 Oct 2017, Jason Lixfeld wrote:


Absolutely.  I understand the "Prepend to Network blah” use case.  The case I 
don’t get is where the ISP makes no distinction in their policy document about how 
the prepending of their own AS is applied to their upstream announcements, implying 
that it’s announced to everyone.


The "prepend to everybody" communities are usually implemented as "prepend 
to all peers", excluding customers, and for some variable definition of 
"all".  YMMV, caveat emptor, et cetera -- in most cases you'll need to 
experiment.


I've used "prepend to all peers" communities a few times to avoid 
saturating transit links that are being consolidated but still under 
contract, in order to keep the link viable and in use by the immediate 
neighbor and their customers, but otherwise make it less attractive to the 
rest of the world under normal conditions.


-Rob