Dear,
the download is perfectly balanced, but the upload goes only on one interface.
routing bgp peers
Please Help me..
blake
June 14, 2011, 3:01pm
2
Are you receiving the same routes from both external peers? Are they sending you a default route, partial table, full table, or full w/ default route?
Also, you may want to read this. http://wiki.mikrotik.com/wiki/Manual:IP/Route#Multipath_.28ECMP.29_routes
Dear,
in the ip route i'have some of:
0 ADb 1.0.4.0/22 151.9.1xx.xxx r... 20
....
etc
peer 1 151.9.1xx.xxx upload / download works
blake
June 14, 2011, 4:18pm
4
Could you do a ‘print detail’ on some of those routes so we can see the BGP weight and metrics between the two links? Also please put the output into a [ code ] block. http://forum.mikrotik.com/t/getting-the-most-out-of-this-forum/40983/1
Dear,
0 ADb dst-address=1.0.4.0/22 gateway=151.9.1xx.xxx reachable ether2 distance=20 scope=40
target-scope=10 bgp-as-path="1267,174,7545,7545,7545,7545,7545,56203" bgp-origin=igp
bgp-communities=174:21001,174:22013,1267:130,1267:200 received-from=151.9.1xx.xxx
1 Db dst-address=1.0.4.0/22 gateway=151.9.212.89 reachable ether1 distance=20 scope=40
target-scope=10 bgp-as-path="1267,174,7545,7545,7545,7545,7545,56203" bgp-origin=igp
bgp-communities=174:21001,174:22013,1267:130,1267:200 received-from=151.9.2xx.xx
2 ADb dst-address=1.1.1.0/30 gateway=151.9.133.229 reachable ether2 distance=20 scope=40
target-scope=10 bgp-as-path="1267,8968" bgp-origin=incomplete
bgp-communities=1267:180,1267:200 received-from=151.9.1xx.xxx
3 Db dst-address=1.1.1.0/30 gateway=151.9.212.89 reachable ether1 distance=20 scope=40
target-scope=10 bgp-as-path="1267,8968" bgp-origin=incomplete
bgp-communities=1267:180,1267:200 received-from=151.9.2xx.xx
4 ADb dst-address=1.5.0.0/16 gateway=151.9.133.229 reachable ether2 distance=20 scope=40
target-scope=10 bgp-as-path="1267,6939,4725" bgp-origin=igp
bgp-communities=1267:168,1267:200 received-from=151.9.1xx.xxx
5 Db dst-address=1.5.0.0/16 gateway=151.9.212.89 reachable ether1 distance=20 scope=40
target-scope=10 bgp-as-path="1267,6939,4725" bgp-origin=igp
bgp-communities=1267:168,1267:200 received-from=151.9.2xx.xx
6 ADb dst-address=1.9.0.0/16 gateway=151.9.133.229 reachable ether2 distance=20 scope=40
target-scope=10 bgp-as-path="1267,4788" bgp-origin=igp
bgp-communities=1267:168,1267:200,4788:200,4788:210 received-from=151.9.1xx.xxx
Eising
June 17, 2011, 11:39am
6
There is no maximum-path option on mikrotik, meaning it is not possible to configure outbound load-balancing on multiple paths with BGP. BGP on RouterOS will only select one path. There is no workaround with BGP as far as I know.
mrz
June 17, 2011, 12:19pm
7
It is possible to configure BGP in RouterOS to use multiple paths. Here you can find exampleshttp://wiki.mikrotik.com/wiki/Manual:BGP_Load_Balancing_with_two_interfaces
Eising
June 17, 2011, 12:37pm
8
Yes, with multihop and some sort of IGP to do the ECMP. That’s not the same.
If you would sumarize bandwidth, you can use link-agregation (LACP).
two sessions with same uplink is normaly used for redundancy with 2 routers and bgp-communities for adjust uplink local-preference.
You can select out-bond traffic (with bgp filters and play with preference, med, etc.) but you only try play with up-link communities, by example: one link for your continent or country routers, and other for rest.
Is not good practice but can deaggregate your allocation and public diferent address blocks by bgp sessions.
Is the same problem with 2 uplinks, but the problem is that all routes have same as-path, in bgp only one route is active.