Dear Sirs,
I have a large OSPF network and I’m changing the network from EOIP to VPLS to concentrate all client in PPPoE.
The problem is that one router doesn’t want redistribuite label, in fact the remote VPLS, of that router, is not running.
In the ospf i have checked to redistribuite connected routes, and in the neighbor routers the Vpls are working but they don’t receive the address to trasport traffic of that router.
Where am I wrong?
Thanks in advance
Carlo
Hi,
VPLS instead EoIP is a good idea.
About your problem I think you must do troubleshoting at routing level.
You know that mpls/vpls requires a working routing layer. Can you give more detail about your configuration/topology?
How you have configured transport? What interface? What ip address? Can you ping the transport address of the incriminated router from others ?
bye
I have asked to some trainer mikrotik and told me, like you, to find the problem in ospf.
Only a thing: it is possible that the routerborad where insists the ospf that have a different firmware (release 4.17 and 5.
, causes the problem?
The 5.x OSPF implementation is buggy as hell, just look through the forums.
Since I downgraded all of my routers back to 4.17 I have a stable network.
saludos
Bernardo
I have had same problem. in my setup, it was due to wrong labeling. I also had more than one point with same MPLS label, causing this stuff.
ospf is indeed buggy, but its quite ok, if u tweek it a bit. Its still problems with different maste flag, if link between some of the routers drop. I think. it maybe due to some bug in LSA not timing out, and that the LSA gets different value after a state change, but other side, dont see the new lable untill old somhow times out (not scientificly proved, but a taught)
Why all this use of pppoe sentralised, (eoip, vpls etc) when its a nice feture to run pppoe on each AP, and use BGP to let the central router know about customer IP. central radius is still also possible. Then all hassle with eoip, vpls etc is minimal. in my setup, i have subnets to a router (lets say just /21 to make it easy) addresses in this subnet is by a managment software, given to spesific customer. Its updating a database, and tells the same to radius. My ap is connected to radius, and get information about ip/user/pass/ques etc. Customer logon to AP, get an ip from pppoe server, AP makes an interface, and BGP redistrubute this trough the MPLS net to the central router.
Dear Samsung172,
I’m very interested to implement your network. I have implemented PPPoE centralized only to not waste public IP and hide the wireless network.
Could you post the configuration about your routing?
Thanks in advance
Carlo
This is done trough a complete system. Its web based, and auto generate config. Its not easy to deploy just part of code.
could you explaine only a part of routing of BGP… I have not understand how could assign pubblic IP having a lot of pppoe server…
I cannot waste the resource of public IP…
carlo
Your scenario mix your transport network with customer traffic… You have only internet broad band customer?
If you must sell e direct private link between two or more customer site??
@ab130kd It work becouse BGP see address of pppinterface on the APs directly connected and so redistribuite them but in my opinion is a bad idea.
I think that is a good practice, olso followed by big Telco and ISP/WISP, to mantain distinct netowrks layer so:
- phisical layer (wired/wireless or mixed)
- transport layer (mpls over static/ospf routing)
- service layer (customer internet connection or customer private links)
In this scenario you can use the “mpls cloud” for several services without mixing traffic (and olso routes) of different customer/services.
bye
Someone using version 5.14 with Mikrotik this loss of communication between OSPF routers and use of Mpls-VPLS, here on my network falls increase.
@Luth,
Ciao Luciano,
Could you explaine a small example about a configuration only with mpls without vpls?
Ciao Carlo
Hi Carlo,
when i study the scenario I'm based with this two link:
Presentazione MPLS dal MUM di Praga del 2009
MPLS/VPLS dal wiki
Best regards,
Luciano
Ciao Carlo,
quando ho "studiato" l'argomento mi sono basato su questi due link:
Presentazione MPLS dal MUM di Praga del 2009
MPLS/VPLS dal wiki
A presto,
Luciano
Also me,
it is the presentation where I started to study MPLS/VPLS…
But I have a problem with vpls.. seems that with 5.xx version doesn’t work wery well…
Carlo