NANOG Digest, Vol 100, Issue 26

mark at rapid-communications.com mark at rapid-communications.com
Fri May 27 12:46:08 UTC 2016


X rj45 3m × 4



Tks

mark






On Fri, May 27, 2016 at 5:00 AM -0700, <nanog-request at nanog.org> wrote:










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Today's Topics:

   1. Frontier routing issue? (Matt Hoppes)
   2. AS 714/6185 IX Peering (Graham Johnston)
   3. LLDP via SNMP (Avi Freedman)
   4. Re: LLDP via SNMP (Spencer Ryan)
   5. RE: LLDP via SNMP (Michael Hare)
   6. Re: LLDP via SNMP (Jeff Gehlbach)
   7. Re: LLDP via SNMP (Saku Ytti)
   8. Re: Network traffic simulator (David)
   9. Re: Network traffic simulator (Jim Greene)
  10. Re: Network traffic simulator (Tom Smyth)
  11. VOIP Monitoring Solution (segs)
  12. Re: Frontier routing issue? (Gambill, Nate)
  13. Re: LLDP via SNMP (Fedor Sumkin)
  14. GRE on ASR9001 (Rukka Pal)
  15. Re: GRE on ASR9001 (Saku Ytti)
  16. Re: GRE on ASR9001 (Rukka Pal)
  17. Re: GRE on ASR9001 (Saku Ytti)


----------------------------------------------------------------------

Message: 1
Date: Thu, 26 May 2016 08:22:18 -0400
From: Matt Hoppes 
To: nanog at nanog.org
Subject: Frontier routing issue?
Message-ID:
	<40AD53F9-BEB3-4930-9603-381DE1901B14 at rivervalleyinternet.net>
Content-Type: text/plain;	charset=us-ascii

Is anyone else in the north east seeing routing issues on frontier right now?  Unable to get to many websites. Trace route seems to complete fine but you can't bring up any content. 


------------------------------

Message: 2
Date: Thu, 26 May 2016 13:11:35 +0000
From: Graham Johnston 
To: NANOG 
Subject: AS 714/6185 IX Peering
Message-ID: <82C0CE81789FE64D8F4D152631918297B149B4 at MSG6.westman.int>
Content-Type: text/plain; charset="us-ascii"

Is there anyone from AS 714/6185 that can reach out to me, AS 19016, to try and get traffic from your network to come to me via your Equinix IX connection instead of a transit connections.

Graham Johnston
Network Planner
Westman Communications Group
204.717.2829
johnstong at westmancom.com
P think green; don't print this email.



------------------------------

Message: 3
Date: Thu, 26 May 2016 10:47:15 -0400 (EDT)
From: freedman at freedman.net (Avi Freedman)
To: nanog at nanog.org
Subject: LLDP via SNMP
Message-ID: <20160526144715.AA0D655006E16 at freedman.net>
Content-Type: text/plain; charset="US-ASCII"


Have had the question come up a few times, so I wanted to poll the community to see...

For those who are monitoring LLDP, how have you found the SNMP MIB support support for it on Juniper, Cisco, Brocade, Arista, and others?

Wondering if you've needed to resort to CLI scraping or APIs to get the data?

Thanks,

Avi Freedman
CEO, Kentik



------------------------------

Message: 4
Date: Thu, 26 May 2016 10:51:03 -0400
From: Spencer Ryan 
To: avi at kentik.com
Cc: "North American Network Operators' Group" 
Subject: Re: LLDP via SNMP
Message-ID:
	
Content-Type: text/plain; charset=UTF-8

We use Observium for most of our SNMP monitoring, and it correctly pulls
LLDP and CDP data from all of our Cisco and Arista gear.


*Spencer Ryan* | Senior Systems Administrator | sryan at arbor.net
*Arbor Networks*
+1.734.794.5033 (d) | +1.734.846.2053 (m)
www.arbornetworks.com

On Thu, May 26, 2016 at 10:47 AM, Avi Freedman 
wrote:

>
> Have had the question come up a few times, so I wanted to poll the
> community to see...
>
> For those who are monitoring LLDP, how have you found the SNMP MIB support
> support for it on Juniper, Cisco, Brocade, Arista, and others?
>
> Wondering if you've needed to resort to CLI scraping or APIs to get the
> data?
>
> Thanks,
>
> Avi Freedman
> CEO, Kentik
>
>


------------------------------

Message: 5
Date: Thu, 26 May 2016 15:53:53 +0000
From: Michael Hare 
To: Spencer Ryan , "avi at kentik.com" 
Cc: North American Network Operators' Group 
Subject: RE: LLDP via SNMP
Message-ID:
	
	
Content-Type: text/plain; CHARSET=US-ASCII

My experience with Juniper has been mixed, experience with 12.X and 13.X made me wonder if I had a poor understanding of how to do a proper decode or if Juniper's implementation itself had issues as I would often get incomplete results.

We've now grab over XML and have been pleased with that choice to the point I no longer see it as a "resort" but the most efficient way for us to move forward.  I used to open JTAC cases on each SNMP problem I'd come across [ CoS, mac-accounting ] and it generally wasn't a good use of our time.

-Michael

-----Original Message-----
From: NANOG [mailto:nanog-bounces at nanog.org] On Behalf Of Spencer Ryan
Sent: Thursday, May 26, 2016 9:51 AM
To: avi at kentik.com
Cc: North American Network Operators' Group 
Subject: Re: LLDP via SNMP

We use Observium for most of our SNMP monitoring, and it correctly pulls
LLDP and CDP data from all of our Cisco and Arista gear.


*Spencer Ryan* | Senior Systems Administrator | sryan at arbor.net
*Arbor Networks*
+1.734.794.5033 (d) | +1.734.846.2053 (m)
www.arbornetworks.com

On Thu, May 26, 2016 at 10:47 AM, Avi Freedman 
wrote:

>
> Have had the question come up a few times, so I wanted to poll the
> community to see...
>
> For those who are monitoring LLDP, how have you found the SNMP MIB support
> support for it on Juniper, Cisco, Brocade, Arista, and others?
>
> Wondering if you've needed to resort to CLI scraping or APIs to get the
> data?
>
> Thanks,
>
> Avi Freedman
> CEO, Kentik
>
>


------------------------------

Message: 6
Date: Thu, 26 May 2016 14:53:19 -0400
From: Jeff Gehlbach 
To: "nanog at nanog.org" 
Subject: Re: LLDP via SNMP
Message-ID: <34b0b707-79be-b1c7-d89c-d18690aea6d1 at opennms.org>
Content-Type: text/plain; charset="windows-1252"

On 05/26/2016 10:47 AM, Avi Freedman wrote:

> For those who are monitoring LLDP, how have you found the SNMP MIB
> support support for it on Juniper, Cisco, Brocade, Arista, and
> others?

I can't speak to Brocade (just haven't been to a customer recently who
has their kit and wants topology), but I've found support from Juniper,
Cisco, and Arista to be very good. As long as the device software load
is reasonably modern and LLDP is lit up everywhere, topology usually
just works.

We added LLDP support a couple years ago to OpenNMS' L2/L3
link-discovery service daemon (on top of CDP, IS-IS, and OSPF).
Everything is done via SNMP, for now anyway. If you read Java, you can
profit from our experience by sifting through the various LLDP-related
classes in our code here:

https://github.com/OpenNMS/opennms/

Tangentially, we've also been working on integration with OpenDaylight,
which pretty much demands going ReSTful to gather underlay and overlay
topology data.

-jeff

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------------------------------

Message: 7
Date: Thu, 26 May 2016 22:16:21 +0300
From: Saku Ytti 
To: avi at kentik.com
Cc: nanog list 
Subject: Re: LLDP via SNMP
Message-ID:
	
Content-Type: text/plain; charset=UTF-8

On 26 May 2016 at 17:47, Avi Freedman  wrote:
> For those who are monitoring LLDP, how have you found the SNMP MIB support support for it on Juniper, Cisco, Brocade, Arista, and others?

I've written this to crawl network with CDP+LLDP+SNMP and produce JSON
or dotty output of topology. https://github.com/ytti/netcrawl CDP MIB
is obviously enterprise but LLDP is standard.

LLDP standard itself is in my non-humble opinion broken. There are no
guarantees that standard compliant LLDP will produce useful data.
Standard should allow multiple TLV's to describe port and device.
Standard should mandate that if device implements IP and SNMP, one of
the port TLVs SHOULD be 'ifIndex' and one of the device TLVs  SHOULD
be MGMT IP address.

-- 
  ++ytti


------------------------------

Message: 8
Date: Tue, 24 May 2016 14:14:04 -0600
From: David 
To: nanog at nanog.org
Subject: Re: Network traffic simulator
Message-ID: <5744B60C.9090809 at shaw.ca>
Content-Type: text/plain; charset=utf-8; format=flowed

On 2016-05-24 6:17 AM, Mitchell Lewis wrote:
> Hi,I am looking to validate the performance specs of a core router. I am looking for a network traffic simulator which can simulate 40 gbps of traffic. I am looking for a simulator with sfp+ ports.
> I am interested in any input as to brands to look at, build one myself etc.
> Thanks,Mitchell
>


SPIRENT offers such products (along with Ixia already mentioned).


------------------------------

Message: 9
Date: Tue, 24 May 2016 16:48:46 -0400
From: Jim Greene 
To: NANOG 
Subject: Re: Network traffic simulator
Message-ID: <36d82b0945e0ea62cb98fa4c900ffa6e at afrl.hpc.mil>
Content-Type: text/plain; charset=US-ASCII

 

Spirent can do this, Have worked with them at 100G. 

On 2016-05-24 08:17, Mitchell Lewis wrote: 

> Hi,I am looking to validate the performance specs of a core router. I am looking for a network traffic simulator which can simulate 40 gbps of traffic. I am looking for a simulator with sfp+ ports.
> I am interested in any input as to brands to look at, build one myself etc.
> Thanks,Mitchell

-- 

Jim Greene
Lockheed Martin
AFRL/RCM
2435 Fifth St
WPAFB, OH. 45433
937-656-5692
greenejk.ctr at afrl.hpc.mil 

------------------------------

Message: 10
Date: Tue, 24 May 2016 23:42:23 +0100
From: Tom Smyth 
To: Mitchell Lewis 
Cc: NANOG 
Subject: Re: Network traffic simulator
Message-ID:
	
Content-Type: text/plain; charset=UTF-8

Hi Michell,

the CCR series from MT is probably is as cost effictive a 10G+ Capable
system that you can use to generate and measure the packet troughput of a
core router under test... check out traffic generator
http://wiki.mikrotik.com/wiki/Manual:Tools/Traffic_Generator

you can generate small packets / large packets ... simulate TCP throughput
and play wireshark pcap files.. .. it is prety comprehensive...  somre of
the configuration syntax is not that intutive ... but its worakable...
any system that I have tested with traffic generator vs  an expensive
calibrated tests the results were always corelating between MT traffic
generator and the expensive testers with an error margin of 1-2 %
I hope that helps...

Peace out

On Tue, May 24, 2016 at 1:17 PM, Mitchell Lewis 
wrote:

> Hi,I am looking to validate the performance specs of a core router. I am
> looking for a network traffic simulator which can simulate 40 gbps of
> traffic. I am looking for a simulator with sfp+ ports.
> I am interested in any input as to brands to look at, build one myself etc.
> Thanks,Mitchell




-- 
Kindest regards,
Tom Smyth

Mobile: +353 87 6193172
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which may be caused by malicious software or attachments.


------------------------------

Message: 11
Date: Wed, 25 May 2016 08:10:59 +0100
From: segs 
To: nanog at nanog.org
Subject: VOIP Monitoring Solution
Message-ID:
	
Content-Type: text/plain; charset=UTF-8

Hi All,

I Am on the lookout for a solution that can monitor IP phones in use on the
network.

 The solution should have

 -- a very intuitive GUI

 -- detailed reporting mechanism.

 --- send basic commands like restart to the phones

 ---- monitor number of active calls on the call manager

 ---- monitor status of trunks > --- can show visual details of two ip
phones in an active call

 --- show details of call quality.

The environment in question is using Cisco Call manager BE7k and cisco Ip
phones.

Thanks in advance.

Segun Rufai


------------------------------

Message: 12
Date: Thu, 26 May 2016 09:55:22 -0400
From: "Gambill, Nate" 
To: Matt Hoppes 
Cc: nanog at nanog.org
Subject: Re: Frontier routing issue?
Message-ID:
	
Content-Type: text/plain; charset=UTF-8

Matt,

Some of our sites in Michigan are experiencing similar outages.  I
understand that they are actively working to correct the issues.

Later,


-- 
Nate Gambill  *STM*
Network Engineer
Information Services
St. Joseph County Schools
62445 Shimmel Road
Centreville, MI  49032-9527
269.467.5315

-- 

CONFIDENTIALITY NOTICE:  This message and all attachments transmitted with 
it may contain legally privileged and confidential information intended 
solely for the use of the addressee. If the reader of this message is not 
the intended recipient, you are hereby notified that any reading, 
dissemination, distribution, copying, or other use of this message or its 
attachments is strictly prohibited.  If you have received this message in 
error, please notify the sender immediately and delete this message and all 
copies and backups.


------------------------------

Message: 13
Date: Thu, 26 May 2016 18:28:34 +0300
From: Fedor Sumkin 
To: Spencer Ryan 
Cc: avi at kentik.com, "North American Network Operators' Group"
	
Subject: Re: LLDP via SNMP
Message-ID:
	
Content-Type: text/plain; charset=UTF-8

Most of the vendors support standard LLDP-MIB::lldpMIB mib(i.e. Cisco,
Huawei, Juniper, Arista, EdgeCore..).
Only few of them have vendor-specific Mibs(Alcatel, a3com-huawei, Motorola
WiNG).

On Thu, May 26, 2016 at 5:51 PM, Spencer Ryan  wrote:

> We use Observium for most of our SNMP monitoring, and it correctly pulls
> LLDP and CDP data from all of our Cisco and Arista gear.
>
>
> *Spencer Ryan* | Senior Systems Administrator | sryan at arbor.net
> *Arbor Networks*
> +1.734.794.5033 (d) | +1.734.846.2053 (m)
> www.arbornetworks.com
>
> On Thu, May 26, 2016 at 10:47 AM, Avi Freedman 
> wrote:
>
> >
> > Have had the question come up a few times, so I wanted to poll the
> > community to see...
> >
> > For those who are monitoring LLDP, how have you found the SNMP MIB
> support
> > support for it on Juniper, Cisco, Brocade, Arista, and others?
> >
> > Wondering if you've needed to resort to CLI scraping or APIs to get the
> > data?
> >
> > Thanks,
> >
> > Avi Freedman
> > CEO, Kentik
> >
> >
>


------------------------------

Message: 14
Date: Fri, 27 May 2016 10:28:17 +0200
From: Rukka Pal 
To: NANOG 
Subject: GRE on ASR9001
Message-ID:
	
Content-Type: text/plain; charset=UTF-8

Anyone here running GRE tunnels between ASR9001series? I am planning to
connect some special-purpose remote sites to my core infra using
unencrypted GRE tunnels and OSPF routing. The estimated bandwidth
requirements are between 500Mbps and several Gbps. I am not planning to use
MPAs, instead the fixed 10G ports

I believe this should present no significant problems to the ASR9001, just
wanted to get a confirmation. Thanks!


------------------------------

Message: 15
Date: Fri, 27 May 2016 12:40:25 +0300
From: Saku Ytti 
To: Rukka Pal 
Cc: NANOG 
Subject: Re: GRE on ASR9001
Message-ID:
	
Content-Type: text/plain; charset=UTF-8

On 27 May 2016 at 11:28, Rukka Pal  wrote:

> I believe this should present no significant problems to the ASR9001, just
> wanted to get a confirmation. Thanks!

Performance will be about 15Mpps per NPU.

-- 
  ++ytti


------------------------------

Message: 16
Date: Fri, 27 May 2016 13:04:54 +0200
From: Rukka Pal 
To: Saku Ytti 
Cc: NANOG 
Subject: Re: GRE on ASR9001
Message-ID:
	
Content-Type: text/plain; charset=UTF-8

Thanks! May I know where you found this information? Did you calculate this
using "BRKSPG-2904" or is this a result of your own testing?

On Fri, May 27, 2016 at 11:40 AM, Saku Ytti  wrote:

> On 27 May 2016 at 11:28, Rukka Pal  wrote:
>
> > I believe this should present no significant problems to the ASR9001,
> just
> > wanted to get a confirmation. Thanks!
>
> Performance will be about 15Mpps per NPU.
>
> --
>   ++ytti
>


------------------------------

Message: 17
Date: Fri, 27 May 2016 14:38:05 +0300
From: Saku Ytti 
To: Rukka Pal 
Cc: NANOG 
Subject: Re: GRE on ASR9001
Message-ID:
	
Content-Type: text/plain; charset=UTF-8

Original work. But I lied, I read my notes and performance was capped
at 12Mpps, after which counters which indicate NPU starvation start to
increase.

On 27 May 2016 at 14:04, Rukka Pal  wrote:
> Thanks! May I know where you found this information? Did you calculate this
> using "BRKSPG-2904" or is this a result of your own testing?
>
> On Fri, May 27, 2016 at 11:40 AM, Saku Ytti  wrote:
>>
>> On 27 May 2016 at 11:28, Rukka Pal  wrote:
>>
>> > I believe this should present no significant problems to the ASR9001,
>> > just
>> > wanted to get a confirmation. Thanks!
>>
>> Performance will be about 15Mpps per NPU.
>>
>> --
>>   ++ytti
>
>



-- 
  ++ytti


End of NANOG Digest, Vol 100, Issue 26
**************************************







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