Link aggregation on Redback SMS routers
To configure link aggregation on Redback SMS routers you need to do the following.
Create the link group interface and assign an IP address to it
[local]Redback(config)#context local [local]Redback(config-ctx)#interface AMS-IX [local]Redback(config-if)#ip address 195.69.x.x/23 [local]Redback(config-if)#exit
Create the link group and bind it to its interface
[local]Redback(config)#link-group AMS-IX ether [local]Redback(config-link-group)#bind interface AMS-IX local
Configure an ethernet port and add it to the link group
[local]Redback(config-config)#port ethernet 1/1 [local]Redback(config-port)#no shutdown [local]Redback(config-port)#link-group AMS-IX [local]Redback(config-port)#exit
Configure another ehternet port and add it to the link group
[local]Redback(config-config)#port ethernet 1/2 [local]Redback(config-port)#no shutdown [local]Redback(config-port)#link-group AMS-IX [local]Redback(config-port)#exit
To match the AMS-IX arp timeout (4 hours) you need to configure this under the interface
[local]Redback(config)#context local [local]Redback(config-ctx)#int AMS-IX [local]Redback(config-if)#ip arp timeout 14400 [local]Redback(config-port)#exit
Also, you can set your aggregated min-links to a value that will cause the bundle to drop in the event that your links can no longer support the amount of traffic you move trough the link-group.Thus, 2-port aggregated link, pushing 1.2 Gbps sustained across, drop bundle if n == 1;
[local]Redback(config)#link-group AMS-IX ether [local]Redback(config-link-group)#minimum-links 2 [local]Redback(config-link-group)#exit
This config is made to interconnect with an aggregated link towards the AMS-IX. For other Link aggregation interconnects you need to make changes towards this config.