On 03/25/2011 11:05 AM, Randy Cosby wrote:
We have a new network we've built out with Mikrotik backhauls and
RB450G's at each tower. The towers are all connected to each other in
a ring, as shown below. Users off each AP are connecting over PPPOE
through a PPPOE concentrator (Cisco 2811) at the main tower. At the
Main Tower, we use a cisco 3560 switch instead of a Mikrotik router.
Main Tower : PPPOE concentrator, backhauls to Tower 1 and 3
Tower 1 : 2 AP's, sitemonitor, etc. BH's to main tower and tower 2.
Tower 2 : 2 AP's, sitemonitor, etc. BH's to tower 1 and tower 3.
Tower 3 : 2 AP's, sitemonitor, etc. BH's to tower 3 and main tower
(Internet)
\
Main Tower ----- Tower 3
| |
| |
Tower 1---------- Tower 2
We need to have private IP access from the main tower to each of the
devices for management, as well as have layer 2 ethernet from each
enduser device back to the PPPPOE concentrator. Currently we have
separate vlans from the main tower to tower 1 and tower 3. We
manually (working on scripting) swap the active vlan in case of an
outage, but that is not optimal. We've looked at the Mikrotik mesh,
but it didn't seem very reliable - breaks in the ring would take a
long time to "heal." We didn't spend much time on that though, so we
could possibly do more optimization to get that working well. Just
curious what others are using to get automatic fail-over and load
sharing in this type of scenario.
Thanks!
You could to this with reasonable ease with STP. I wouldn't try RSTP,
as there may be problems with Cisco and MT interactions with RSTP. STP
is as configurable as OSPF in many ways and it repairs a broken link in
about the same amount of time (it can be configured to be MUCH faster,
but be careful doing this with wireless links). You will need to
configure STP on the routers as well as the switch (Cisco).
--
********************************************************************
* Butch Evans * Professional Network Consultation*
* http://www.butchevans.com/ * Network Engineering *
* http://store.wispgear.net/ * Wired or Wireless Networks *
* http://blog.butchevans.com/ * ImageStream, Mikrotik and MORE! *
* NOTE THE NEW PHONE NUMBER: 702-537-0979 *
********************************************************************
_______________________________________________
Mikrotik mailing list
[email protected]
http://www.butchevans.com/mailman/listinfo/mikrotik
Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS
