subject:"Re\: \[Mikrotik\] OSPF issues"

Re: [Mikrotik] OSPF issues

2013-05-16 Thread Scott Reed

We run each POP as a stub area.  We also do summarization at the POP.  
CPEs run OSPF so the rest of the net knows how to get to them, not so 
they can get out.
By doing the summarization and CPEs running OSPF our routing table went 
from over 100 entries to about 500.  When we get done adding 
summarization for core interconnects, I expect it to get down to about 
200 routes.
Installers like it because even if the CPE is configured with the wrong 
address, the Internet still works and we can change the addressing from 
the desk.



On 5/16/2013 10:15 AM, Casey Mills wrote:

I agree with Paolo, only use OSPF on your core network routers.  There is
no need to have it running on CPE.  Most of the time they only have one
route to the AP anyway.

Casey


On Thu, May 16, 2013 at 6:49 AM, Paolo Di Francesco <
paolo.difrance...@level7.it> wrote:


Hi Scott

we were having a lot of routers on different OSPF areas. Then due to our
topology I thought it was better and much more stable to work with other
stragegies.

Yes we had some memory issues (leaks?) with flapping but obviously the
solution is not on the OSPF side but on the link part of the infrastrucutre
(to avoid flapping)

I am glad it worked for you, but it is not working for us :)

Thank you for the feedback

Paolo


  Please define "many routers."  We have over 600 RouterBoards

participating in OSPF and the only time we have an issue is when a
wireless link flaps as OSPF needs to recalculate the table before it is
done. That seems to be where there is a memory issue.

On 5/15/2013 9:23 AM, Paolo Di Francesco wrote:


Hi

yes STILLOSPF has issues when your network has many routers
participating to the OSPF graph. The simple solution is to decrease
teh number or routers in the graph i.e. do not use OSPF where not
absolutely needed and use static routing where possible

Also you have to use the right 'configuration' on the link (if you are
using wireless to connect) in order to let the OSPF messages pass.
Usually ptpm solve many link issues

Occasionally, I see OSPF disappearing or not properly working in some
links, i.e. traffic passing but OSPF down on that link. In that case,
rebooting the LINK (not the router) makes things go again

Obviously this opens some problems when you are using PPPoE or
accordingly with your network infrastructure.

Regards
Paolo

  All-

 I've been noticing a lot of OSPF/route issues, mostly with older
code as I've been adjusting the network (properly).  After some
network maintenance I'm going to be bought some time, but I've lost
connections to routers (where rebooting brought them right back, no
changes).  Travelling to a router at whenever, not fun, and I know
it's my fault because I don't have OOB built yet.

 It looks like this:

http://forum.mikrotik.com/**viewtopic.php?f=14&t=57781&**start=0

 Does anyone have a CR# for this so we can confirm OSPF fixes, or
perhaps a recommended Code to run until it is?

 It looks like some of yall are seeing the same thing.

 What's the best code for OSPF/routes?

-Mike Miller
__**_
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://mail.butchevans.com/**mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik
RouterOS





--


Ing. Paolo Di Francesco

Level7 s.r.l. unipersonale

Sede operativa: Largo Montalto, 5 - 90144 Palermo

C.F. e P.IVA  05940050825
Fax : +39-091-8772072
assistenza: (+39) 091-8776432
web: http://www.level7.it



__**_
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://mail.butchevans.com/**mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik
RouterOS


-- next part --
An HTML attachment was scrubbed...
URL: 

___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://mail.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS


-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.3336 / Virus Database: 3162/6328 - Release Date: 05/16/13




--
Scott Reed
Owner
NewWays Networking, LLC
Wireless Networking
Network Design, Installation and Administration

 


Mikrotik Advanced Certified
 
www.nwwnet.net

(765) 855-1060
(765) 439-4253
(855) 231-6239


___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://mail.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS

Re: [Mikrotik] OSPF issues

2013-05-16 Thread Casey Mills

I agree with Paolo, only use OSPF on your core network routers.  There is
no need to have it running on CPE.  Most of the time they only have one
route to the AP anyway.

Casey


On Thu, May 16, 2013 at 6:49 AM, Paolo Di Francesco <
paolo.difrance...@level7.it> wrote:

> Hi Scott
>
> we were having a lot of routers on different OSPF areas. Then due to our
> topology I thought it was better and much more stable to work with other
> stragegies.
>
> Yes we had some memory issues (leaks?) with flapping but obviously the
> solution is not on the OSPF side but on the link part of the infrastrucutre
> (to avoid flapping)
>
> I am glad it worked for you, but it is not working for us :)
>
> Thank you for the feedback
>
> Paolo
>
>
>  Please define "many routers."  We have over 600 RouterBoards
>> participating in OSPF and the only time we have an issue is when a
>> wireless link flaps as OSPF needs to recalculate the table before it is
>> done. That seems to be where there is a memory issue.
>>
>> On 5/15/2013 9:23 AM, Paolo Di Francesco wrote:
>>
>>> Hi
>>>
>>> yes STILLOSPF has issues when your network has many routers
>>> participating to the OSPF graph. The simple solution is to decrease
>>> teh number or routers in the graph i.e. do not use OSPF where not
>>> absolutely needed and use static routing where possible
>>>
>>> Also you have to use the right 'configuration' on the link (if you are
>>> using wireless to connect) in order to let the OSPF messages pass.
>>> Usually ptpm solve many link issues
>>>
>>> Occasionally, I see OSPF disappearing or not properly working in some
>>> links, i.e. traffic passing but OSPF down on that link. In that case,
>>> rebooting the LINK (not the router) makes things go again
>>>
>>> Obviously this opens some problems when you are using PPPoE or
>>> accordingly with your network infrastructure.
>>>
>>> Regards
>>> Paolo
>>>
>>>  All-

 I've been noticing a lot of OSPF/route issues, mostly with older
 code as I've been adjusting the network (properly).  After some
 network maintenance I'm going to be bought some time, but I've lost
 connections to routers (where rebooting brought them right back, no
 changes).  Travelling to a router at whenever, not fun, and I know
 it's my fault because I don't have OOB built yet.

 It looks like this:

 http://forum.mikrotik.com/**viewtopic.php?f=14&t=57781&**start=0

 Does anyone have a CR# for this so we can confirm OSPF fixes, or
 perhaps a recommended Code to run until it is?

 It looks like some of yall are seeing the same thing.

 What's the best code for OSPF/routes?

 -Mike Miller
 __**_
 Mikrotik mailing list
 Mikrotik@mail.butchevans.com
 http://mail.butchevans.com/**mailman/listinfo/mikrotik

 Visit http://blog.butchevans.com/ for tutorials related to Mikrotik
 RouterOS


>>>
>>>
>>
>
> --
>
>
> Ing. Paolo Di Francesco
>
> Level7 s.r.l. unipersonale
>
> Sede operativa: Largo Montalto, 5 - 90144 Palermo
>
> C.F. e P.IVA  05940050825
> Fax : +39-091-8772072
> assistenza: (+39) 091-8776432
> web: http://www.level7.it
>
>
>
> __**_
> Mikrotik mailing list
> Mikrotik@mail.butchevans.com
> http://mail.butchevans.com/**mailman/listinfo/mikrotik
>
> Visit http://blog.butchevans.com/ for tutorials related to Mikrotik
> RouterOS
>
-- next part --
An HTML attachment was scrubbed...
URL: 

___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://mail.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS

Re: [Mikrotik] OSPF issues

2013-05-16 Thread Paolo Di Francesco


Hi Scott

we were having a lot of routers on different OSPF areas. Then due to our 
topology I thought it was better and much more stable to work with other 
stragegies.


Yes we had some memory issues (leaks?) with flapping but obviously the 
solution is not on the OSPF side but on the link part of the 
infrastrucutre (to avoid flapping)


I am glad it worked for you, but it is not working for us :)

Thank you for the feedback

Paolo


Please define "many routers."  We have over 600 RouterBoards
participating in OSPF and the only time we have an issue is when a
wireless link flaps as OSPF needs to recalculate the table before it is
done. That seems to be where there is a memory issue.

On 5/15/2013 9:23 AM, Paolo Di Francesco wrote:

Hi

yes STILLOSPF has issues when your network has many routers
participating to the OSPF graph. The simple solution is to decrease
teh number or routers in the graph i.e. do not use OSPF where not
absolutely needed and use static routing where possible

Also you have to use the right 'configuration' on the link (if you are
using wireless to connect) in order to let the OSPF messages pass.
Usually ptpm solve many link issues

Occasionally, I see OSPF disappearing or not properly working in some
links, i.e. traffic passing but OSPF down on that link. In that case,
rebooting the LINK (not the router) makes things go again

Obviously this opens some problems when you are using PPPoE or
accordingly with your network infrastructure.

Regards
Paolo


All-

I've been noticing a lot of OSPF/route issues, mostly with older
code as I've been adjusting the network (properly).  After some
network maintenance I'm going to be bought some time, but I've lost
connections to routers (where rebooting brought them right back, no
changes).  Travelling to a router at whenever, not fun, and I know
it's my fault because I don't have OOB built yet.

It looks like this:

http://forum.mikrotik.com/viewtopic.php?f=14&t=57781&start=0

Does anyone have a CR# for this so we can confirm OSPF fixes, or
perhaps a recommended Code to run until it is?

It looks like some of yall are seeing the same thing.

What's the best code for OSPF/routes?

-Mike Miller
___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://mail.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik
RouterOS









--


Ing. Paolo Di Francesco

Level7 s.r.l. unipersonale

Sede operativa: Largo Montalto, 5 - 90144 Palermo

C.F. e P.IVA  05940050825
Fax : +39-091-8772072
assistenza: (+39) 091-8776432
web: http://www.level7.it



___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://mail.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS

Re: [Mikrotik] OSPF issues

2013-05-15 Thread Scott Reed

Please define "many routers."  We have over 600 RouterBoards 
participating in OSPF and the only time we have an issue is when a 
wireless link flaps as OSPF needs to recalculate the table before it is 
done. That seems to be where there is a memory issue.


On 5/15/2013 9:23 AM, Paolo Di Francesco wrote:

Hi

yes STILLOSPF has issues when your network has many routers 
participating to the OSPF graph. The simple solution is to decrease 
teh number or routers in the graph i.e. do not use OSPF where not 
absolutely needed and use static routing where possible


Also you have to use the right 'configuration' on the link (if you are 
using wireless to connect) in order to let the OSPF messages pass. 
Usually ptpm solve many link issues


Occasionally, I see OSPF disappearing or not properly working in some 
links, i.e. traffic passing but OSPF down on that link. In that case, 
rebooting the LINK (not the router) makes things go again


Obviously this opens some problems when you are using PPPoE or 
accordingly with your network infrastructure.


Regards
Paolo


All-

I've been noticing a lot of OSPF/route issues, mostly with older 
code as I've been adjusting the network (properly).  After some 
network maintenance I'm going to be bought some time, but I've lost 
connections to routers (where rebooting brought them right back, no 
changes).  Travelling to a router at whenever, not fun, and I know 
it's my fault because I don't have OOB built yet.


It looks like this:

http://forum.mikrotik.com/viewtopic.php?f=14&t=57781&start=0

Does anyone have a CR# for this so we can confirm OSPF fixes, or 
perhaps a recommended Code to run until it is?


It looks like some of yall are seeing the same thing.

What's the best code for OSPF/routes?

-Mike Miller
___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://mail.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik 
RouterOS







--
Scott Reed
Owner
NewWays Networking, LLC
Wireless Networking
Network Design, Installation and Administration

 


Mikrotik Advanced Certified
 
www.nwwnet.net

(765) 855-1060
(765) 439-4253
(855) 231-6239


___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://mail.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS

Re: [Mikrotik] OSPF issues

2013-05-15 Thread Paolo Di Francesco


Hi

yes STILLOSPF has issues when your network has many routers 
participating to the OSPF graph. The simple solution is to decrease teh 
number or routers in the graph i.e. do not use OSPF where not absolutely 
needed and use static routing where possible


Also you have to use the right 'configuration' on the link (if you are 
using wireless to connect) in order to let the OSPF messages pass. 
Usually ptpm solve many link issues


Occasionally, I see OSPF disappearing or not properly working in some 
links, i.e. traffic passing but OSPF down on that link. In that case, 
rebooting the LINK (not the router) makes things go again


Obviously this opens some problems when you are using PPPoE or 
accordingly with your network infrastructure.


Regards
Paolo


All-

I've been noticing a lot of OSPF/route issues, mostly with older code as 
I've been adjusting the network (properly).  After some network maintenance I'm 
going to be bought some time, but I've lost connections to routers (where 
rebooting brought them right back, no changes).  Travelling to a router at 
whenever, not fun, and I know it's my fault because I don't have OOB built yet.

It looks like this:

http://forum.mikrotik.com/viewtopic.php?f=14&t=57781&start=0

Does anyone have a CR# for this so we can confirm OSPF fixes, or perhaps a 
recommended Code to run until it is?

It looks like some of yall are seeing the same thing.

What's the best code for OSPF/routes?

-Mike Miller
___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://mail.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS




--


Ing. Paolo Di Francesco

Level7 s.r.l. unipersonale

Sede operativa: Largo Montalto, 5 - 90144 Palermo

C.F. e P.IVA  05940050825
Fax : +39-091-8772072
assistenza: (+39) 091-8776432
web: http://www.level7.it



___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://mail.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS

Re: [Mikrotik] OSPF issues

2010-09-20 Thread Chupaka

That's because 172.26.7.3 is available via the same interface as the
computer pinging the PBX

2010/9/17 james 

> Why do we get a "From 192.168.57.6: icmp_seq=1 Redirect Host(New nexthop:
> 172.26.7.3)" reply?
>
-- next part --
An HTML attachment was scrubbed...
URL: 

___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://www.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS

Re: [Mikrotik] Ospf Issues between a Cisco and MT v.4.5

2010-08-12 Thread Keith Barber

Running 4.11 for the past 6 days.  
So far so good with Ospf.



-Original Message-
From: Chupaka [mailto:chup...@gmail.com] 
Sent: Friday, August 06, 2010 3:23 PM
To: Mikrotik discussions
Subject: Re: [Mikrotik] Ospf Issues between a Cisco and MT v.4.5

Please upgrade to the latest version and re-check.



2010/8/6 Keith Barber 

> Hey everyone,
>
>
>
> Weve been having a recurring issue that seems to come up every few
> weeks or so that causes us to have to reload our cisco router.  After
> tracking it down it appears that the Mikrotik begins to send a bad
> sequence number.
>
> Has anybody seen/dealt with this before?
>
> The MT is an x86 on v4.5 because I thought 4.5 was the stable one.
>
>
>
> Heres a snippet of the log from the cisco 7206 in case it sparks
> anything for anybody.
>
>
>
> Jul 27 12:55:54.586 AST: OSPF: Rcv DBD from 208.84.198.242 on
>
> GigabitEthernet1/0.11 seq 0x9 opt 0x42 flag 0x7 len 32  mtu 1500 state
>
> EXCHANGE
>
> Jul 27 12:55:54.586 AST: OSPF: EXCHANGE - OPTIONS/INIT not match
>
> Jul 27 12:55:54.586 AST: OSPF: Bad seq received from 208.84.198.2 on
>
> GigabitEthernet1/0.11
>
> Jul 27 12:55:54.586 AST: OSPF: Send DBD to 208.84.198.242 on
>
> GigabitEthernet1/0.11 seq 0x250F opt 0x52 flag 0x7 len 32
>
> Jul 27 12:55:59.586 AST: OSPF: Send DBD to 208.84.198.242 on
>
> GigabitEthernet1/0.11 seq 0x250F opt 0x52 flag 0x7 len 32
>
> Jul 27 12:55:59.586 AST: OSPF: Retransmitting DBD to 208.84.198.242 on
>
> GigabitEthernet1/0.11 [1]
>
>
>
> -Keith-
>
>
> -- next part --
> An HTML attachment was scrubbed...
> URL: <
> 
http://www.butchevans.com/pipermail/mikrotik/attachments/20100806/98c951ff/attachment.html
> >
> ___
> Mikrotik mailing list
> Mikrotik@mail.butchevans.com
> http://www.butchevans.com/mailman/listinfo/mikrotik
>
> Visit http://blog.butchevans.com/ for tutorials related to Mikrotik
> RouterOS
-- next part --
An HTML attachment was scrubbed...
URL: 
<http://www.butchevans.com/pipermail/mikrotik/attachments/20100806/7d5f6bb0/attachment.html>
___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://www.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik 
RouterOS


___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://www.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS

Re: [Mikrotik] Ospf Issues between a Cisco and MT v.4.5

2010-08-06 Thread Chupaka

Please upgrade to the latest version and re-check.



2010/8/6 Keith Barber 

> Hey everyone,
>
>
>
> We’ve been having a recurring issue that seems to come up every few
> weeks or so that causes us to have to reload our cisco router.  After
> tracking it down it appears that the Mikrotik begins to send a bad
> sequence number.
>
> Has anybody seen/dealt with this before?
>
> The MT is an x86 on v4.5 because I thought 4.5 was the “stable” one.
>
>
>
> Here’s a snippet of the log from the cisco 7206 in case it sparks
> anything for anybody.
>
>
>
> Jul 27 12:55:54.586 AST: OSPF: Rcv DBD from 208.84.198.242 on
>
> GigabitEthernet1/0.11 seq 0x9 opt 0x42 flag 0x7 len 32  mtu 1500 state
>
> EXCHANGE
>
> Jul 27 12:55:54.586 AST: OSPF: EXCHANGE - OPTIONS/INIT not match
>
> Jul 27 12:55:54.586 AST: OSPF: Bad seq received from 208.84.198.2 on
>
> GigabitEthernet1/0.11
>
> Jul 27 12:55:54.586 AST: OSPF: Send DBD to 208.84.198.242 on
>
> GigabitEthernet1/0.11 seq 0x250F opt 0x52 flag 0x7 len 32
>
> Jul 27 12:55:59.586 AST: OSPF: Send DBD to 208.84.198.242 on
>
> GigabitEthernet1/0.11 seq 0x250F opt 0x52 flag 0x7 len 32
>
> Jul 27 12:55:59.586 AST: OSPF: Retransmitting DBD to 208.84.198.242 on
>
> GigabitEthernet1/0.11 [1]
>
>
>
> -Keith-
>
>
> -- next part --
> An HTML attachment was scrubbed...
> URL: <
> http://www.butchevans.com/pipermail/mikrotik/attachments/20100806/98c951ff/attachment.html
> >
> ___
> Mikrotik mailing list
> Mikrotik@mail.butchevans.com
> http://www.butchevans.com/mailman/listinfo/mikrotik
>
> Visit http://blog.butchevans.com/ for tutorials related to Mikrotik
> RouterOS
-- next part --
An HTML attachment was scrubbed...
URL: 

___
Mikrotik mailing list
Mikrotik@mail.butchevans.com
http://www.butchevans.com/mailman/listinfo/mikrotik

Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS

Re: [Mikrotik] OSPF issues

Re: [Mikrotik] OSPF issues

Re: [Mikrotik] OSPF issues

Re: [Mikrotik] OSPF issues

Re: [Mikrotik] OSPF issues

Re: [Mikrotik] OSPF issues

Re: [Mikrotik] Ospf Issues between a Cisco and MT v.4.5

Re: [Mikrotik] Ospf Issues between a Cisco and MT v.4.5

8 matches

Site Navigation

Mail list logo

Footer information