RE: eigrp and managed ethernet

2008-09-23 Thread Brian Knoll
The issue may be that only one direction of traffic is being impacted.  So 
maybe your A end is receiving all the hellos, while the Z end is not.  
Therefore A still has Z as a neighbor, but Z doesn't have A as a neighbor.

Brian Knoll


-Original Message-
From: Philip Lavine [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 23, 2008 11:26 AM
To: nanog
Subject: Re: eigrp and managed ethernet

What is really bizarre is that I am down for minutes not seconds and the timers 
never fire. If I don't manually passive the connection eigrp will for some 
reason think there is a neighbor even though I am unable to source ping across 
the WAN.



- Original Message 
From: Matthew Huff <[EMAIL PROTECTED]>
To: Philip Lavine <[EMAIL PROTECTED]>; nanog <[EMAIL PROTECTED]>
Sent: Tuesday, September 23, 2008 8:59:14 AM
Subject: RE: eigrp and managed ethernet

Correct. Eigrp neighbor connectivity has a short-cut when L2 connectivity goes 
down, otherwise it will use the eigrp neighbor hold-down timer. You can 
decrease that timer:

interface fa0/0
  ip hello-interval eigrp p x
  ip hold-time eigrp p y

where p is your eigrp as-number, and x is how often you want the hello (in 
seconds) and y is the max hold-down timer. Generally y is = x * 3

http://www.cisco.com/en/US/docs/ios/12_2/iproute/command/reference/1rfeigrp.html



Matthew Huff   | One Manhattanville Rd
OTA Management LLC | Purchase, NY 10577
www.ox.com| Phone: 914-460-4039
aim: matthewbhuff  | Fax:   914-460-4139

-Original Message-
From: Philip Lavine [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 23, 2008 11:43 AM
To: nanog
Subject: eigrp and managed ethernet

For some reason when I lose layer 3 connectivity between two managed Ethernet 
sites EIGRP does not bounce.Is this because the physical interface does not 
bounce?







[NANOG] Hurrican Electric

2008-05-02 Thread Brian Knoll (TT)
Is there an engineer at Hurrican Electric that could contact me off
list?  It looks like you may have a static route to my network that you
are advertising out via AS 6939.  It's preventing several customers from
connecting to us.  

 

Our network is 12.41.48.0 /24 AS 21734

 

Brian

312-698-6017

 

 

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Re: [NANOG] Hurrican Electric

2008-05-02 Thread Brian Knoll (TT)
Mike,

I was able to get someone else from Hurricane on and they resolved the
issue quickly.  Thanks for the response.

Brian


-Original Message-
From: Mike Leber [mailto:[EMAIL PROTECTED] 
Sent: Friday, May 02, 2008 11:33 AM
To: Brian Knoll (TT)
Cc: [EMAIL PROTECTED]
Subject: Re: [NANOG] Hurrican Electric


On Fri, 2 May 2008, Brian Knoll (TT) wrote:
> Is there an engineer at Hurrican Electric that could contact me off
> list?  It looks like you may have a static route to my network that
you
> are advertising out via AS 6939.  It's preventing several customers
from
> connecting to us.  
> 
> Our network is 12.41.48.0 /24 AS 21734

Hi, I've confirmed we don't have a static route.  

Here is a traceroute to that:

[EMAIL PROTECTED]>traceroute 12.41.48.1

Type Control-c to abort
Tracing the route to IP node 12.41.48.1 from 1 to 30 hops

  1<1 ms   <1 ms   <1 ms sjo-bb1-link.telia.net [213.248.86.53]
  247 ms   47 ms   47 ms chi-bb1-pos6-1-0-0.telia.net
[213.248.80.25]
  347 ms   47 ms   47 ms 192.205.34.197
  453 ms   51 ms   51 ms tbr1.cgcil.ip.att.net [12.123.4.246]
  548 ms   48 ms   59 ms gar1.chail.ip.att.net [12.123.4.69]
  6*   *  !H 12.119.137.54
[EMAIL PROTECTED]>

In the future, please email [EMAIL PROTECTED], we will be happy to help you.

Mike.

+- H U R R I C A N E - E L E C T R I C
-+
| Mike Leber Wholesale IPv4 and IPv6 Transit   510 580 4100
|
| Hurricane Electric Web Hosting  Colocation AS6939
|
| [EMAIL PROTECTED]   http://he.net
|
+---
+


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Independent Testing for Network Hardware

2008-07-10 Thread Brian Knoll (TT)
Can anyone recommend a reliable independent testing company that tests
network hardware performance?

 

We are considering buying testing hardware (right now we are looking at
Spirent TestCenter) and I wanted to see if there were other options...

 

Brian Knoll