Difference between revisions of "OSPF to simulate full duplex links with redundancy"

From MikroTik Wiki
Jump to: navigation, search
(New page: I have a critical wireless connection that needs both speed and reliability. I saw somewhere in the forum that simulating full duplex using ospf might be the way to go. This scenario will ...)
 
Line 2: Line 2:
  
 
I am working with 2 RB 333 units with two R52s in each.
 
I am working with 2 RB 333 units with two R52s in each.
RB #1 Local
+
'''RB #1 Local'''
  
 
Enable both wlan connections, I set one up as an wlan1 ap and wlan2 as a station (this is not necessary It just makes me feel good to receive to a station and broadcast as an ap.
 
Enable both wlan connections, I set one up as an wlan1 ap and wlan2 as a station (this is not necessary It just makes me feel good to receive to a station and broadcast as an ap.
 +
[admin@2Sutton] /interface wireless> print
 +
Flags: X - disabled, R - running
 +
0  R name="wlan1" mtu=1500 mac-address=00:0C:42:05:64:F3 arp=enabled interface-type=Atheros AR5413 mode=ap-bridge ssid="jetspeed" frequency=5180 band=5ghz
 +
      scan-list=default antenna-mode=ant-a wds-mode=disabled wds-default-bridge=none wds-ignore-ssid=no default-authentication=yes default-forwarding=yes
 +
      default-ap-tx-limit=0 default-client-tx-limit=0 hide-ssid=no security-profile=default compression=no
 +
 +
1  R name="wlan2" mtu=1500 mac-address=00:0C:42:1B:0B:7D arp=enabled interface-type=Atheros AR5413 mode=station ssid="jetspeed2" frequency=5220 band=5ghz
 +
      scan-list=default antenna-mode=ant-a wds-mode=disabled wds-default-bridge=none wds-ignore-ssid=no default-authentication=yes default-forwarding=yes
 +
      default-ap-tx-limit=0 default-client-tx-limit=0 hide-ssid=no security-profile=default compression=no
 +
  
 
set ether1 to any Local lan address 192.168.209.137/24
 
set ether1 to any Local lan address 192.168.209.137/24
 
set wlan1 to a router subnet address 192.168.88.131/30 -- I use small subnets for p2p links for efficiency
 
set wlan1 to a router subnet address 192.168.88.131/30 -- I use small subnets for p2p links for efficiency
 
set wlan2 to a router address on a different subnet 192.168.88.132/30
 
set wlan2 to a router address on a different subnet 192.168.88.132/30
 +
 +
[admin@2Sutton] /ip address> print
 +
Flags: X - disabled, I - invalid, D - dynamic
 +
#  ADDRESS            NETWORK        BROADCAST      INTERFACE                                                                                             
 +
0  192.168.88.129/30  192.168.88.128  192.168.88.131  wlan1                                                                                           
 +
1  192.168.88.134/30  192.168.88.132  192.168.88.135  wlan2                                                                                           
 +
2  192.168.209.137/24 192.168.209.0  192.168.209.255 ether1
 +
 +
Create an OSPF area like 0.0.0.1 named something like remote-net
 +
 +
[admin@2Sutton] /routing ospf area> print
 +
Flags: X - disabled
 +
#  NAME                                                                                                          AREA-ID        TYPE    DEFAULT-COST       
 +
0  backbone                                                                                                      0.0.0.0        default
 +
1  remote-net                                                                                                      0.0.0.1        default
 +
 +
add your remote network and routed links to the area (mine is all in one /24 even though it is three subnets)
 +
 +
[admin@2Sutton] /routing ospf network> print
 +
Flags: X - disabled, I - invalid
 +
#  NETWORK            AREA                                                                                                                                 
 +
0  192.168.88.0/24    local10
 +
 +
Your interfaces will automatically populate when you add the second router......
 +
 +
'''RB2 Remote'''

Revision as of 03:48, 16 February 2008

I have a critical wireless connection that needs both speed and reliability. I saw somewhere in the forum that simulating full duplex using ospf might be the way to go. This scenario will eliminate the primary problem with both dual nstreme and bonded links: If one of the sub links goes down, the entire link is down. With an OSPF link, if one goes down, in a few seconds, all traffic is going over the other link.

I am working with 2 RB 333 units with two R52s in each. RB #1 Local

Enable both wlan connections, I set one up as an wlan1 ap and wlan2 as a station (this is not necessary It just makes me feel good to receive to a station and broadcast as an ap.

[admin@2Sutton] /interface wireless> print

Flags: X - disabled, R - running

0  R name="wlan1" mtu=1500 mac-address=00:0C:42:05:64:F3 arp=enabled interface-type=Atheros AR5413 mode=ap-bridge ssid="jetspeed" frequency=5180 band=5ghz 
     scan-list=default antenna-mode=ant-a wds-mode=disabled wds-default-bridge=none wds-ignore-ssid=no default-authentication=yes default-forwarding=yes 
     default-ap-tx-limit=0 default-client-tx-limit=0 hide-ssid=no security-profile=default compression=no 
1  R name="wlan2" mtu=1500 mac-address=00:0C:42:1B:0B:7D arp=enabled interface-type=Atheros AR5413 mode=station ssid="jetspeed2" frequency=5220 band=5ghz 
     scan-list=default antenna-mode=ant-a wds-mode=disabled wds-default-bridge=none wds-ignore-ssid=no default-authentication=yes default-forwarding=yes 
     default-ap-tx-limit=0 default-client-tx-limit=0 hide-ssid=no security-profile=default compression=no 


set ether1 to any Local lan address 192.168.209.137/24 set wlan1 to a router subnet address 192.168.88.131/30 -- I use small subnets for p2p links for efficiency set wlan2 to a router address on a different subnet 192.168.88.132/30

[admin@2Sutton] /ip address> print Flags: X - disabled, I - invalid, D - dynamic

#   ADDRESS            NETWORK         BROADCAST       INTERFACE                                                                                              
0   192.168.88.129/30  192.168.88.128  192.168.88.131  wlan1                                                                                             
1   192.168.88.134/30  192.168.88.132  192.168.88.135  wlan2                                                                                             
2  192.168.209.137/24 192.168.209.0   192.168.209.255 ether1

Create an OSPF area like 0.0.0.1 named something like remote-net

[admin@2Sutton] /routing ospf area> print Flags: X - disabled

#   NAME                                                                                                          AREA-ID         TYPE    DEFAULT-COST        
0   backbone                                                                                                      0.0.0.0         default
1   remote-net                                                                                                       0.0.0.1         default

add your remote network and routed links to the area (mine is all in one /24 even though it is three subnets)

[admin@2Sutton] /routing ospf network> print Flags: X - disabled, I - invalid

#   NETWORK            AREA                                                                                                                                   
0   192.168.88.0/24    local10

Your interfaces will automatically populate when you add the second router......

RB2 Remote